WO2025108460A1 - Occlusal splint and method for preparing same - Google Patents

Abstract

Provided are an occlusal splint (2) and a method for preparing same. The occlusal splint (2) comprises n single-bag units, wherein each single-bag unit comprises a bag cavity, a bag housing, and a filling material contained in the bag cavity, n is an integer of ≥2, the n single-bag units are connected to each other, and the n single-bag units are not in communication with each other. Alternatively, the occlusal splint (2) comprises a bag (3), wherein the bag (3) comprises a bag housing, a bag cavity, and a filling material contained in the bag cavity, and the occlusal splint (2) is in contact with an appliance (1) and does not cover the incisor area. In the first aspect, the occlusal splint (2) can achieve dynamic adjustment of occlusion and adapt to the tooth morphology of a patient, thereby making the occlusal shaping more accurate and comfortable and reducing tooth abrasion. The bag cavity of each single-bag unit can be filled with different filling materials, such that the occlusal force can be better balanced and distributed, and the bag cavity can also be used as a multifunctional carrier. In the second aspect, the occlusal splint (2) can effectively improve the occlusal stability, and is made of a softer material.

Description

Jaw pad and preparation method thereof

This application claims the priority of Chinese patent application No. 202311583698X with a filing date of 2023/11/24 and an invention title of “A jaw pad and a method for preparing the same” and No. 2023115836994 with a filing date of 2023/11/24 and an invention title of “A jaw pad and a method for preparing the same”. This application cites the full text of the above Chinese patent application.

Technical Field

The invention relates to a jaw pad and a preparation method thereof.

Background Art

During orthodontic treatment, some patients need to use jaw pads to open their bite and release their jaws before they can undergo subsequent orthodontic treatment due to clinical symptoms such as deep overbite and locked jaws. Current jaw pad products include resin jaw pads bonded to teeth, cavitating jaw pads integrally formed with invisible braces, and solid jaw pads bonded to invisible braces. Existing jaw pad products have a fixed height and a fixed design position. During orthodontic treatment, teeth are in a dynamic movement process, and fixed jaw pad designs often cannot meet clinical precision requirements after being used for a period of time. For resin jaw pads bonded to teeth, doctors can only reduce the height of the jaw pads by manual grinding, which brings an inconvenient clinical experience to both doctors and patients. At the same time, the shapes of existing jaw pads are mostly simple smooth planes or simply designed virtual occlusal structures, which are quite different from the actual occlusal pits and fissures of teeth, so there are many problems such as inaccurate occlusion, discomfort, and instability.

Summary of the invention

In order to overcome the defects of the existing jaw pads such as inaccurate occlusion, discomfort and instability, the present invention adopts the following technical solutions.

In the first aspect of the present invention, the present invention provides a jaw pad, which includes n single-cystic units, wherein the single-cystic units include a cystic cavity, a cystic shell and a filling material filled in the cystic cavity, wherein n is an integer, and n≥2; the n single-cystic units are connected to each other, and the n single-cystic units are not connected to each other.

By fixing the jaw pad of the present invention on the orthodontic appliance, dynamic occlusal adjustment can be achieved, which can adapt to the patient's tooth shape, make the occlusal shaping more accurate and comfortable, improve comfort and reduce tooth wear; the sac-shaped cavity of each single-capsule unit can be filled with different filling materials, which can not only better balance the distribution of the bite force, but also serve as a multifunctional carrier to meet the function of opening the bite. By optimizing the single-capsule structure into a multi-capsule structure, the hardness of the filling material makes the occlusal surface morphology more stable.

In the present invention, the n single-capsule units may be filled with the same or different filling materials, preferably with different filling materials.

In the present invention, the heights of the n capsules may be uniform or non-uniform, preferably non-uniform.

The distribution of the non-uniform height can be selected according to actual conditions, and is preferably a gradient height distribution, such as low in the middle and high around, or high in the middle and low around.

In a specific embodiment of the present invention, the heights of the n sacs are distributed in the following order: the sac located at the tooth cusp is higher, and the other sacs are lower.

In the present invention, the side of the single capsule unit in contact with the orthodontic appliance is adapted to the planed shape of the bottom surface of the tooth.

In the present invention, the shape of the jaw pad can be a three-dimensional grid shape, a three-dimensional spider web shape, a three-dimensional tunnel shape or a three-dimensional spiral shape.

The cross-sectional shape of the single capsule unit is preferably a polygon, more preferably a triangle, a quadrilateral or a hexagon, for example, a quadrilateral.

In the present invention, the jaw pad can be arranged on one or both sides of the posterior tooth area of the orthodontic appliance when in use, and is used to open the occlusion of the posterior tooth area, wherein the posterior tooth area includes molars and canines, but does not include incisors.

Preferably, the jaw pad is arranged on the surface of the posterior teeth area of at least one side of the orthodontic appliance close to the opposing jaw. By introducing a flexible jaw pad into the jaw surface of the posterior teeth area of at least one side of the orthodontic appliance, the occlusal surface is adapted and the function of opening the bite is satisfied.

The posterior teeth may include a first premolar, a second premolar, a first molar and a second molar, namely teeth No. 4 to No. 7.

In the present invention, the side of the jaw pad in contact with the orthodontic appliance is adapted to the anatomical shape or plane shape of the bottom surface of the tooth.

In the present invention, the height of the jaw pad may be 2-10 mm, for example, 4 mm, 6 mm or 8 mm.

In the present invention, the elongation at break of the material of the sac-shaped shell is 30-1500%, preferably 350-940%.

In the present invention, the hardness of the material of the sac-shaped shell is 30-95A, preferably 42-85A.

In the present invention, the wall thickness of the sac-shaped shell may be 0.5-2 mm, preferably 0.5-0.8 mm.

In the present invention, the thickness-diameter ratio of the sac-shaped shell may be 1:(0-9). The thickness-diameter ratio of the sac-shaped shell refers to the wall thickness of the sac-shaped shell: (height of the jaw pad-wall thickness of the sac-shaped shell).

In the present invention, the water absorption rate of the material of the capsule-shaped shell is 0.05%-150%;

Preferably, the water absorption rate of the material of the sac-shaped shell is 0.05%-5%, preferably 0.05%-2%, more preferably 0.05%-1%, for example 0.1% or 0.5%, where the percentage is the mass increase of the sac-shaped shell after water absorption as a percentage of the mass of the sac-shaped shell before water absorption. When the material of the sac-shaped shell has a low water absorption rate, the material has no swelling through holes or the swelling through holes have a small diameter. During the occlusion process, the filling material is always in the sac-shaped cavity of the jaw pad, which can play a stronger supporting role, thereby better balancing the occlusal force.

Preferably, the water absorption rate of the material of the sac-like shell is 5%-150%, preferably 5%-90%, and more preferably 10%-60%, where the percentage is the mass increase of the sac-like shell after water absorption as a percentage of the mass of the sac-like shell before water absorption. When the material of the sac-like shell has a high water absorption rate, the material contains certain swelling through holes, which can satisfy the sustained release function. For example, when the filling material is rose flavor essence, the rose flavor can be slowly released through the swelling through holes to achieve the effect of lasting fresh breath. Among them, the water absorption rate of the material of the sac-like shell is measured as follows: at 23°C, the material is completely immersed in water for 24 hours, the mass of the material before and after is tested, and the water absorption rate is calculated according to the following formula:

In the present invention, the material of the bladder-shaped shell can be silicone rubber, thermoplastic elastomer or thermoplastic plastic.

In the present invention, the functions of the cystic cavity include but are not limited to being used for connecting a catheter, for pre-storing a surplus of functional filling liquid, and for sustained release of the functional liquid.

In the present invention, the filling amount of the filling material can be selected according to actual conditions, and the filling amount of the filling material needs to satisfy: the height of the jaw pad after filling can meet the requirement of opening the bite.

In the present invention, the sac-like shell has elasticity. When the volume of the filling material is less than or equal to the volume of the sac-like cavity, that is, the filling amount of the filling material is less than or equal to 100%, the sac-like cavity does not deform; when the volume of the filling material is greater than the volume of the sac-like cavity, that is, the filling amount of the filling material is greater than 100%, the sac-like shell deforms, and the volume of the deformed sac-like cavity is greater than the initial volume of the sac-like cavity. In the present invention, the filling amount of the filling material can be 0 or more, preferably 10%-200%, and more preferably 100-130%, and the percentage is the percentage of the volume of the filling material to the initial volume of the sac-like cavity.

In the present invention, the filling material may be one or more of liquid, gas, phase change material and non-Newtonian fluid.

The liquid may be water or a solution containing a functional agent. The functional agent in the solution containing a functional agent preferably includes one or more of a fragrance, an indicator and a medicine.

Wherein, the aromatic agent is preferably an essence, and the essence is, for example, a strawberry flavor essence and/or a rose flavor essence.

Wherein, the indicator is preferably a saliva indicator.

Wherein, the drug is preferably an anti-caries drug and/or a drug for treating periodontitis.

The gas may be one or more of air, nitrogen, carbon dioxide and oxygen, for example, air.

The phase change material may be a material that is liquid at room temperature and solid near body temperature, preferably a phase change wax. The phase change material may be disposed at the tooth tip corresponding to a tooth with high occlusal strength to neutralize the occlusal strength.

The non-Newtonian fluid is a shear-thickening substance, which can generally be a material system that hardens upon application of an impact energy greater than 2N, and preferably includes one or more of agar, concentrated sugar water, and apple pulp. When the non-Newtonian fluid is filled in the cystic cavity, the bite force applied by the teeth will cause it to thicken and increase its hardness, thereby better neutralizing the bite force.

In a preferred embodiment of the present invention, the filling material can be filled according to the following rule: the mandibular tooth cusp is filled with a filling material with a larger hardness, and the mandibular tooth fossa area is filled with a filling material with a smaller hardness.

In the above preferred embodiment, the filling material with relatively high hardness is, for example, a non-Newtonian fluid.

In the above preferred embodiment, the filling material with relatively low hardness is, for example, water.

In the present invention, the jaw pad can be fixed to the orthodontic appliance by conventional methods in the art, preferably by bonding, plugging, snapping, welding or embedding.

The bonding includes, for example, bonding the jaw pad and the appliance using glue.

The welding may be performed by, for example, using a laser to weld the jaw pad and the orthodontic appliance.

The insertion, for example, fixes the jaw pad to the orthodontic appliance with a rod-shaped attachment through a sleeve-type side wing. The rod-shaped attachment and the orthodontic appliance can be bonded with glue.

The buckling is, for example, to buckle the jaw pad to the appliance with a buckle-shaped attachment through a side wing with a hole. The buckle-shaped attachment and the appliance can be bonded with glue.

Among them, when the jaw pad is fixed on the appliance by embedding, the appliance is provided with a cavity for accommodating the jaw pad, and the jaw pad is arranged in the cavity of the appliance. When the jaw pad is arranged in the cavity of the appliance, the jaw pad will expand after absorbing water, resulting in an increase in volume. The expanded jaw pad will fit more closely with the inner wall of the cavity of the appliance. At this time, the appliance can be more firmly fixed on the jaw pad, and it can play a stronger supporting role during the biting process, and better balance the biting force.

In the present invention, the orthodontic appliance is a dental device that can be used to correct tooth and maxillofacial deformities. Its function is to adjust the position of teeth and jaws by applying appropriate pressure and force to correct various problems such as jaw crookedness, crowded teeth, uneven teeth, and poor bite.

In some preferred embodiments of the present invention, the appliance is an invisible brace. The invisible brace is usually formed by heating and softening a transparent hot-pressed film and then molding it on a mold required by a certain mechanical external force or pressure. The material of the hot-pressed film is usually a thermoplastic polymer material. This type of invisible brace is also called an invisible brace, which can generally be removed from the oral cavity and can be removed and put on by the patient.

In a specific embodiment of the present invention, the material of the sac-shaped shell is thermoplastic elastomer, the filling material is water, the shape of the jaw pad is a three-dimensional grid, and the height of the jaw pad is 2 mm.

In a specific embodiment of the present invention, the material of the sac-shaped shell is thermoplastic elastomer, the filling material is water and strawberry flavor essence, the shape of the jaw pad is a three-dimensional grid, and the height of the jaw pad is 4 mm.

In a specific embodiment of the present invention, the material of the capsule-like shell is thermoplastic elastomer, the filling material is agar, phase change wax, rose essence and water, the shape of the jaw pad is a three-dimensional grid, and the height of the jaw pad is 6 mm.

In a specific embodiment of the present invention, the material of the capsule shell is thermoplastic elastomer, the filling material is agar, phase change wax, anti-caries drugs and water, the shape of the jaw pad is a three-dimensional tunnel, and the height of the jaw pad is 10 mm.

In a specific embodiment of the present invention, the material of the capsule shell is thermoplastic elastomer, the filling material is agar, phase change wax, periodontitis treatment drugs and water, the shape of the jaw pad is a three-dimensional spiral, and the height of the jaw pad is 10 mm.

The present invention also provides a method for preparing the jaw pad as described above, which comprises the following steps: filling the filling material into the sac-like cavity in each of the single-sac units and then sealing the cavity to obtain the jaw pad.

In the present invention, the capsule-shaped shell can be manufactured by conventional methods in the art, preferably including injection molding, injection molding, vacuum molding or additive manufacturing.

In the present invention, the jaw pad can be manufactured by an integrated molding method using a vacuum forming mold or an injection molding mold.

In the present invention, the filling method can be injection, pre-embedding or gas compression.

In the present invention, the filling equipment may be conventional equipment in the art, preferably a filling machine.

In the present invention, the sealing method may be a conventional method in the art, preferably heat sealing, welding or gluing.

The heat sealing method may be a conventional method in the art, preferably high-frequency heat sealing, which is also called high-frequency heat sealing, and generally refers to heat sealing using electromagnetic waves with a frequency greater than 100Khz.

The heat sealing device may be conventional equipment in the art, preferably a radio frequency electronic heat sealing machine.

In a second aspect of the present invention, the present invention provides a jaw pad, which includes a capsule, wherein the capsule includes a capsule-shaped shell, a capsule-shaped cavity and a filling material filled in the capsule-shaped cavity; the capsule contacts the orthodontic appliance and does not cover the incisor area.

The jaw pad of the present invention can realize dynamic occlusal adjustment, adapt to the patient's tooth shape, and make the occlusal shaping more accurate and comfortable, which can effectively improve the occlusal stability. The material is softer, which improves comfort and reduces tooth wear.

In the present invention, the jaw pad can be arranged on one or both sides of the posterior tooth area of the orthodontic appliance when in use, and is used to open the occlusion of the posterior tooth area, wherein the posterior tooth area includes molars and canines, but does not include incisors.

Preferably, the jaw pad is arranged on the surface of the posterior teeth area of at least one side of the orthodontic appliance close to the opposing jaw. By introducing a flexible jaw pad into the jaw surface of the posterior teeth area of at least one side of the orthodontic appliance, the occlusal surface is adapted and the function of opening the bite is satisfied.

Preferably, the molars may include first premolars, second premolars, first molars and second molars, ie teeth No. 4 to 7.

In the present invention, the side of the jaw pad in contact with the orthodontic appliance can be adapted to the anatomical shape or planar shape of the bottom surface of the teeth.

In the present invention, the height of the jaw pad may be 2-10 mm, for example, 4 mm, 6 mm or 8 mm.

In the present invention, the elongation at break of the material of the sac-shaped shell may be 30-1500%, preferably 350-940%, for example 370% or 650%.

In the present invention, the hardness of the material of the sac-shaped shell may be 30-95A, preferably 42-85A, for example 62A or 70A.

In the present invention, the thickness of the capsule-shaped shell may be 0.5-2 mm, preferably 0.5-0.8 mm, for example, 700 um.

In the present invention, the thickness-diameter ratio of the sac-shaped shell may be 1:(0.1-9). The thickness-diameter ratio of the sac-shaped shell refers to the wall thickness of the sac-shaped shell: (height of the jaw pad-wall thickness of the sac-shaped shell).

In the present invention, the water absorption rate of the material of the sac-shaped shell can be 0.05%-150%.

Preferably, the water absorption rate of the material of the sac-shaped shell is 0.05%-5%, preferably 0.05%-2%, more preferably 0.05%-1%, for example 0.1% or 0.5%, where the percentage is the mass increase of the sac-shaped shell after water absorption as a percentage of the mass of the sac-shaped shell before water absorption. When the material of the sac-shaped shell has a low water absorption rate, the material has no swelling through holes or the swelling through holes have a small diameter. During the occlusion process, the filling material is always in the sac-shaped cavity of the jaw pad, which can play a stronger supporting role, thereby better balancing the occlusal force.

Preferably, the water absorption rate of the material of the capsule shell is 5%-150%, preferably 5%-90%, and more preferably 10%-60%, where the percentage is the mass increase of the capsule shell after water absorption to the mass percentage of the capsule shell before water absorption. The material of the capsule shell has a high water absorption rate, and the material contains a certain amount of swelling through holes, which can meet the slow release function. For example, when the filling material is rose flavor essence, the rose flavor essence can be slowly released through the swelling through holes to achieve a lasting fresh breath effect.

The water absorption rate of the material of the bladder shell is measured as follows: the material is completely immersed in water for 24 hours at 23°C, and the quality of the material before and after is tested. The water absorption rate is calculated according to the following formula:

In the present invention, the material of the sac-shaped shell can be silicone rubber, thermoplastic elastomer or thermoplastic plastic.

In the present invention, the functions of the cystic cavity include but are not limited to being used for connecting a catheter, for pre-storing a surplus of functional filling liquid, and for sustained release of the functional liquid.

In the present invention, the filling material may include one or more of liquid, gas, phase change material and non-Newtonian fluid.

The liquid may include water and/or a solution containing a functional agent.

The functional agent in the solution containing the functional agent preferably includes one or more of a fragrance, an indicator and a medicine.

Wherein, the aromatic agent is preferably an essence, and the essence is preferably a strawberry flavor essence and/or a rose flavor essence.

Wherein, the indicator is preferably a saliva indicator.

Wherein, the drug is preferably an anti-caries drug and/or a drug for treating periodontitis. Wherein, the gas may include one or more of air, nitrogen, carbon dioxide and oxygen, such as air.

The phase change material may be a material that is liquid at room temperature and solid at body temperature, preferably a phase change wax.

The non-Newtonian fluid is a shear-thickening substance, which can be a material system that can harden when an impact force greater than 2N is applied, and preferably includes one or more of agar, concentrated sugar water and apple pulp. When the non-Newtonian fluid is filled in the cystic cavity, the bite force applied by the teeth will make it thicker and increase its hardness, which can better neutralize the bite force.

In the present invention, when the jaw pad includes at least two of the capsules, the jaw pad may further include a conduit connecting the at least two of the capsules. The conduit is used to connect the independent capsules, and when biting, the filling material in the capsule cavity can be squeezed into the conduit, which helps to increase the adaptability of the jaw pad and balance the bite force.

Wherein, the cross-sectional shape of the conduit is preferably circular, elliptical, square, trapezoidal or triangular.

Wherein, the inner diameter of the catheter is preferably 0.05-5 mm.

Wherein, the wall thickness of the conduit is preferably 0.02-2 mm.

Preferably, the catheter is wholly or partially retractable or non-retractable.

In the present invention, the filling amount of the filling material can be selected according to actual conditions. When the jaw pad does not include a catheter, the filling amount of the filling material must satisfy: the height of the jaw pad after filling can meet the amount required for opening the bite; when the jaw pad includes a catheter, the filling amount of the filling material must satisfy: the height of the jaw pad after filling can meet the amount required for opening the bite and the required occupancy of the catheter.

In the present invention, the sac-like shell has elasticity. When the volume of the filling material is less than or equal to the volume of the sac-like cavity, that is, the filling amount of the filling material is less than or equal to 100%, the sac-like cavity does not deform; when the volume of the filling material is greater than the volume of the sac-like cavity, that is, the filling amount of the filling material is greater than 100%, the sac-like shell deforms, and the volume of the deformed sac-like cavity is greater than the initial volume of the sac-like cavity. In the present invention, the filling amount of the filling material can be 0 or more, preferably 10%-200%, and more preferably 100-130%, and the percentage is the percentage of the volume of the filling material to the initial volume of the sac-like cavity.

In the present invention, when the jaw pad includes the conduit, the conduit may also be filled with the filling material as described above, and the filling amount of the filling material is preferably 0-100%, where the percentage is the percentage of the volume of the filling material to the volume of the conduit.

In the present invention, the jaw pad can be fixed to the orthodontic appliance by conventional methods in the art, preferably by bonding, plugging, snapping, welding or embedding.

The bonding includes, for example, bonding the jaw pad and the appliance using glue.

The welding may be performed by, for example, using a laser to weld the jaw pad and the orthodontic appliance.

The insertion, for example, fixes the jaw pad to the orthodontic appliance with a rod-shaped attachment through a sleeve-type side wing. The rod-shaped attachment and the orthodontic appliance can be bonded with glue.

The buckling is, for example, to buckle the jaw pad to the appliance with a buckle-shaped attachment through a side wing with holes. The buckle-shaped attachment and the appliance can be bonded with glue.

Among them, when the jaw pad is fixed on the appliance by embedding, the appliance is provided with a cavity for accommodating the jaw pad, and the jaw pad is arranged in the cavity of the appliance. When the jaw pad is arranged in the cavity of the appliance, the jaw pad will expand after absorbing water, resulting in an increase in volume. The expanded jaw pad will fit more closely with the inner wall of the cavity of the appliance. At this time, the appliance can be more firmly fixed on the jaw pad, and it can play a stronger supporting role during the biting process, and better balance the biting force.

In the present invention, the orthodontic appliance is a dental device that can be used to correct tooth and maxillofacial deformities. Its function is to adjust the position of teeth and jaws by applying appropriate pressure and force to correct various problems such as jaw crookedness, crowded teeth, uneven teeth, and poor bite.

In some preferred embodiments of the present invention, the appliance is an invisible brace. The invisible brace is usually formed by heating and softening a transparent hot-pressed film and then molding it on a mold required by a certain mechanical external force or pressure. The material of the hot-pressed film is usually a thermoplastic polymer material. This type of invisible brace is also called an invisible brace, which can generally be removed from the oral cavity and can be removed and put on by the patient.

In a specific embodiment of the present invention, the material of the sac-like shell is a thermoplastic elastomer, the hardness of the material of the sac-like shell is 85A, the water absorption rate of the material of the sac-like shell is 2.15%, the height of the jaw pad is 2 mm, the wall thickness of the sac-like shell is 0.5 mm, and the thickness-to-diameter ratio of the sac-like shell is 1:2.

In a specific embodiment of the present invention, the material of the sac-shaped shell is a thermoplastic elastomer, the hardness of the material of the sac-shaped shell is 42A, the water absorption rate of the material of the sac-shaped shell is 0.05%, the height of the jaw pad is 2 mm, the wall thickness of the sac-shaped shell is 1 mm, and the thickness-to-diameter ratio of the sac-shaped shell is 1:1.

In a specific embodiment of the present invention, the material of the sac-shaped shell is a thermoplastic elastomer, the hardness of the material of the sac-shaped shell is 70A, the water absorption rate of the material of the sac-shaped shell is 1.5%, the height of the jaw pad is 2mm, the wall thickness of the sac-shaped shell is 0.7mm, and the thickness-to-diameter ratio of the sac-shaped shell is 0.7:2.3.

In a specific embodiment of the present invention, the material of the sac-shaped shell is a thermoplastic elastomer, the hardness of the material of the sac-shaped shell is 70A, the water absorption rate of the material of the sac-shaped shell is 0.2%, the height of the jaw pad is 4 mm, the wall thickness of the sac-shaped shell is 0.7 mm, and the thickness-to-diameter ratio of the sac-shaped shell is 0.7:1.3.

In a specific embodiment of the present invention, the material of the sac-shaped shell is a thermoplastic elastomer, the hardness of the material of the sac-shaped shell is 70A, the water absorption rate of the material of the sac-shaped shell is 60%, the height of the jaw pad is 4 mm, the wall thickness of the sac-shaped shell is 0.7 mm, and the thickness-to-diameter ratio of the sac-shaped shell is 0.7:1.3.

In a specific embodiment of the present invention, the material of the sac-shaped shell is a thermoplastic elastomer, the hardness of the material of the sac-shaped shell is 70A, the water absorption rate of the material of the sac-shaped shell is 70%, the height of the jaw pad is 4 mm, the wall thickness of the sac-shaped shell is 0.7 mm, and the thickness-to-diameter ratio of the sac-shaped shell is 0.7:1.3.

In a specific embodiment of the present invention, the material of the sac-shaped shell is a thermoplastic elastomer, the hardness of the material of the sac-shaped shell is 70A, the water absorption rate of the material of the sac-shaped shell is 70%, the height of the jaw pad is 6 mm, the wall thickness of the sac-shaped shell is 0.7 mm, and the thickness-to-diameter ratio of the sac-shaped shell is 0.7:2.3.

The present invention also provides a method for preparing the jaw pad as described above, which comprises the following steps: filling the filling material into the sac-like cavity and then sealing the cavity to obtain the jaw pad.

In the present invention, the capsule-shaped shell can be manufactured by conventional methods in the art, preferably including injection molding, injection molding, vacuum molding or additive manufacturing.

In the present invention, the filling method can be injection, pre-embedding or gas compression.

In the present invention, the filling equipment may be conventional equipment in the art, preferably a filling machine.

In the present invention, the jaw pad includes a catheter, and the catheter can be prepared by conventional methods in the art, preferably by injection molding, injection molding, vacuum molding or additive manufacturing.

In the present invention, the jaw pad includes a catheter, and the catheter and the jaw pad can be connected by a conventional connection method in the art, preferably by welding.

Wherein, the welding equipment is preferably a heat-bonding machine.

In the present invention, the sealing method may be a conventional method in the art, preferably heat sealing, welding or gluing.

The heat sealing method may be a conventional method in the art, preferably high-frequency heat sealing, which is also called high-frequency heat sealing, and generally refers to heat sealing using electromagnetic waves with a frequency greater than 100 kHz.

The heat sealing device may be conventional equipment in the art, preferably a radio frequency electronic heat sealing machine.

On the basis of being in accordance with the common sense in the art, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present invention.

The reagents and raw materials used in the present invention are commercially available.

The positive and progressive effects of the present invention are:

On the first aspect, the jaw pad of the present invention can realize dynamic adjustment of occlusion. The jaw pad of the present invention has an adaptive function. When used in orthodontic treatment, it can play a role in opening the bite or releasing the locked jaw. The interior of the jaw pad is composed of fluid, and it can be shaped accordingly under stress. When placed in the posterior tooth area of the jaw, the jaw pad automatically shapes according to the shape of the occlusal surface during occlusion, and is accurately fixed. The lifting height of the occlusion is also dynamically adjusted as the occlusal situation changes. When the jaw pad is placed on both the left and right sides, the fluids on the left and right sides can be connected through a catheter to balance the occlusal forces on the left and right sides.

On the second aspect, the jaw pad of the present invention can realize dynamic adjustment of occlusion, adapt to the patient's tooth shape, make the occlusion shaping more precise and comfortable, and the material is softer, which improves comfort and reduces tooth wear; the sac-like cavity of each single-capsule unit can be filled with different filling materials, which can not only better balance the distribution of occlusal force, but also serve as a multifunctional carrier. The jaw pad of the present application has multiple single-capsule units. Compared with the structure containing only one single-capsule unit, when a single-capsule unit fails, the jaw pad can still maintain the advantage of not losing the overall function; each single-capsule unit is height-adjustable, and when the overall shape is an "egg-shaped" with a high center and low surroundings, it can match the middle pit and groove of the posterior teeth and the surrounding cusp shape.

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 a is a top view of the jaw pad mold of Example 1, and Figure 1 b is a schematic diagram of the three-dimensional structure of the jaw pad mold of Example 1.

Figure 2 a is a top view of the jaw pad mold of Example 2, and Figure 2 b is a schematic diagram of the three-dimensional structure of the jaw pad mold of Example 2.

Figure 3 a is a top view of the jaw pad mold of Example 3, and Figure 3 b is a schematic diagram of the three-dimensional structure of the jaw pad mold of Example 3.

Figure 4 a is a top view of the jaw pad mold of Example 4 and Example 5, and Figure 4 b is a schematic diagram of the three-dimensional structure of the jaw pad mold of Example 4 and Example 5.

Figure 5 a is a top view of the jaw pad mold of Example 6, and Figure 5 b is a schematic diagram of the three-dimensional structure of the jaw pad mold of Example 6.

Figure 6 a is a top view of the jaw pad mold of Example 7, and Figure 6 b is a schematic diagram of the three-dimensional structure of the jaw pad mold of Example 7.

Figure 7 a is a top view of the jaw pad mold of Example 8, and Figure 7 b is a schematic diagram of the three-dimensional structure of the jaw pad mold of Example 8.

FIG8 is a three-dimensional structural diagram of a brace appliance using an angel buckle to connect the jaw pad.

FIG. 9 is a right side view of the structural disassembly schematic diagram of the orthodontic appliance of FIG. 8 .

FIG. 10 is a left side view of a schematic diagram of the structural disassembly of the orthodontic appliance of FIG. 8 .

Figure a of Figure 11 is a top view of the corrector in Figure 8 ; Figure b of Figure 11 is a front view of the corrector in Figure 8 ; and Figure c of Figure 11 is a left view of the corrector in Figure 8 .

FIG. 12 is a three-dimensional structural diagram of the orthodontic appliance using laser welding to install the jaw pad.

FIG. 13 is a schematic diagram of the structural disassembly of the orthodontic appliance of FIG. 12 .

Figure a of Figure 14 is a top view of the corrector of Figure 12; Figure b of Figure 14 is a front view of the corrector of Figure 12; and Figure c of Figure 14 is a left view of the corrector of Figure 12.

FIG. 15 is a three-dimensional structural diagram of an appliance using sleeve-type side wings connected to a jaw pad.

FIG. 16 is a front view of a schematic diagram of the structural disassembly of the orthodontic appliance of FIG. 15 .

FIG. 17 is a top view of a schematic diagram of the structural disassembly of the orthodontic appliance of FIG. 15 .

Figure a of Figure 18 is a top view of the brace of Figure 15 ; Figure b of Figure 18 is a front view of the brace of Figure 15 ; and Figure c of Figure 18 is a left view of the brace of Figure 15 .

Figure numerals: 1: appliance, 2: jaw pad, 3: capsule, 4: side wings, 5: button-like attachment, 6: rod-like attachment.

Figure 19 is a top view of the orthodontic device prepared in Example 10.

Figure 20 is a rear view of the orthodontic appliance prepared in Example 10.

Figure 21 is a front view of the orthodontic appliance obtained in Example 10.

Figure 22 is a side view of the orthodontic device prepared in Example 10.

Figure 23 is a top view of the jaw pad structure schematic diagram of the orthodontic device prepared in Example 10.

Figure 24 is a rear view of the jaw pad structure schematic diagram of the orthodontic device prepared in Example 10.

Figure 25 is a disassembled diagram of the jaw pad structure of the orthodontic device prepared in Example 10.

Figure 26 is a top view of the bilateral jaw pad structure containing catheters in the orthodontic appliance made in Example 11.

Figure 27 is a side view of the bilateral jaw pad structure containing catheters in the orthodontic appliance prepared in Example 11.

Figure 28 is a front view of the bilateral jaw pad structure containing catheters in the orthodontic appliance made in Example 11.

Figure 29 is a three-dimensional structural diagram of the bilateral jaw pad containing catheters in the orthodontic appliance prepared in Example 11.

Figure 30 is a rear view of the bilateral jaw pad structure containing catheters in the orthodontic appliance prepared in Example 11.

Figure 31 is a bottom view of the bilateral jaw pad structure containing catheters in the orthodontic appliance prepared in Example 11.

Figure 32 is a schematic diagram of the disassembled bilateral jaw pad structure containing catheters in the orthodontic appliance prepared in Example 11.

Figure 33 is a schematic rear view of the disassembled bilateral jaw pad structure containing catheters in the orthodontic appliance prepared in Example 11.

Figure numerals: 1: appliance, 2: jaw pad, 3: capsule, 4: side wings, 5: button attachment, 6: catheter.

DETAILED DESCRIPTION

The present invention is further described below by way of examples, but the present invention is not limited to the scope of the examples. The experimental methods in the following examples without specifying specific conditions are carried out according to conventional methods and conditions, or selected according to the product specifications.

The orthodontic appliance in the following embodiments is an invisible brace formed by hot-pressed film sheets made of thermoplastic polymer film materials and having a cavity consistent with the shape of the patient's jaws.

Example 1

A three-row, multi-grid hollow jaw pad mold (as shown in FIG1 ) is prepared by using a blister mold. FIG1 a is a top view of the jaw pad mold, and FIG2 b is a schematic diagram of the three-dimensional structure of the jaw pad mold. The grids in FIG1 correspond to each single capsule unit. As shown in FIG1 b , the middle of the square grid is concave downward to form a hollow structure in the middle. The hollow structure corresponds to the capsule cavity of each single capsule unit, and the four walls of the grid correspond to the capsule outer shell of the single capsule unit.

Among them, the material of the sac-shaped shell of the single-sac unit is thermoplastic polyurethane elastomer TPU, the number of single-sac units is 27 (3×9), and water is filled into the sac-shaped cavity of each single-sac unit. A hot laminating machine is used to seal the sac-shaped jaw pad, which has a quadrilateral cross-sectional shape and a three-dimensional grid shape. The height of the jaw pad is 2 mm. The side wings 4 are punched, and the side wings 4 with holes are glued to the jaw pad 2 with glue, and the buckle-shaped attachment 5 is glued to the orthodontic appliance 1. The jaw pad 2 is fixed to the orthodontic appliance 1 by buckling the side wings 4 with holes and the buckle-shaped attachment 5.

The prepared jaw pad has good bite force and can meet the needs of open bite, and multiple single-capsule units play a role in structural reinforcement. When one single-capsule unit is damaged, the remaining single-capsule units can still be used normally.

Example 2

A three-row multi-grid hollow jaw pad mold (as shown in FIG2) is prepared by using a blister mold. FIG2a is a top view of the jaw pad mold, and FIG2b is a schematic diagram of the three-dimensional structure of the jaw pad mold. The square grids in FIG2 correspond to each single capsule unit. As shown in FIG2b, the middle of the square grid is concave downward, forming a hollow structure in the middle. The hollow structure corresponds to the capsule cavity of each single capsule unit, and the four walls of the square grid correspond to the capsule shell of the single capsule unit. The number of single capsule units is 21 (3×7);

Among them, the material of the sac-shaped shell of the single-capsule unit is thermoplastic polyurethane elastomer silicone rubber, and strawberry flavor essence and water are filled in the sac-shaped cavity of each single-capsule unit in turn. A hot laminating machine is used to seal the single-capsule unit to obtain a jaw pad with a quadrilateral cross-sectional shape. The shape of the jaw pad is a three-dimensional grid, and the height of the jaw pad is 4 mm. The sleeve-type side wings 4 are bonded to the jaw pad 2 with glue, and the rod-shaped attachment 6 is bonded to the corrector 1. The jaw pad 2 is fixed to the corrector 1 by plugging the sleeve-type side wings 4 and the rod-shaped attachment 6.

The prepared jaw pad has excellent bite force and can meet the needs of opening the bite. It not only plays a role in structural reinforcement, but also can slowly release strawberry flavor through the low barrier membrane, giving lasting fresh breath.

Example 3

A multi-row, multi-grid hollow jaw pad mold (as shown in FIG3 ) is prepared by using a blister mold. FIG3 a is a top view of the jaw pad mold, and FIG3 b is a schematic diagram of the three-dimensional structure of the jaw pad mold. The circular grids in FIG3 correspond to each single capsule unit. As shown in FIG3 b , the middle of the circular grid is concave downward to form a hollow structure in the middle. The hollow structure corresponds to the capsule cavity of each single capsule unit. The wall of the circular grid corresponds to the capsule shell of the single capsule unit. The total number of single capsule units is 21 (3×7).

Among them, the material of the sac-like shell is thermoplastic elastomer TPE, and agar and phase change wax are filled in the sac-like cavity of the single-capsule unit located at the apex of the tooth, and rose essence and water are filled in the sac-like cavity of the single-capsule unit. Then, a hot laminating machine is used to seal the single-capsule unit to obtain a jaw pad with a circular cross-sectional shape. The shape of the jaw pad is a three-dimensional grid, and the height of the jaw pad is 6 mm. As shown in Figures 15-18, the sleeve-type side wings 4 are bonded to the jaw pad 2 with glue, and the rod-shaped attachment 6 is bonded to the orthodontic appliance 1. The jaw pad 2 is fixed to the orthodontic appliance 1 by plugging the sleeve-type side wings 4 and the rod-shaped attachment 6.

The jaw pad prepared in Example 3 has good bite force and can meet the needs of opening the bite. The single-capsule unit located at the tooth tip is filled with non-Newtonian fluid or phase change material to balance the bite force at the tooth tip. The remaining single-capsule units are filled with rose essence and water, which can slowly release rose essence to continuously freshen breath.

Example 4

A multi-grid hollow jaw pad mold with a honeycomb arrangement is prepared by using a vacuum forming mold (as shown in FIG4 ). FIG4 a is a top view of the jaw pad mold, and FIG4 b is a schematic diagram of the three-dimensional structure of the jaw pad mold. The hexagonal grids in FIG4 correspond to each single capsule unit. As shown in FIG4 b , the hexagonal grids bulge upward to form a hollow structure in the middle. The hollow structure corresponds to the capsule cavity of each single capsule unit, and the four walls of the hexagonal grids correspond to the capsule outer shell of the single capsule unit.

Among them, the number of single-capsule units is 17, the material of the capsule shell is thermoplastic elastomer TPE, the capsule cavity of the single-capsule unit located at the apex of the tooth is filled with agar and phase change wax, and the capsule cavity of the single-capsule unit is filled with rose essence and water, and then a hot laminating machine is used to seal it to obtain a jaw pad with a hexagonal cross-sectional shape of the single-capsule unit. The shape of the jaw pad is a three-dimensional grid, and the height of the jaw pad is 6 mm. As shown in Figures 8-11, the side wings 4 are punched, and the side wings 4 with holes are glued to the jaw pad 2 with glue, and the buckle-shaped attachment 5 is glued to the orthodontic appliance 1. The jaw pad 2 is fixed to the orthodontic appliance 1 by buckling the side wings 4 with holes and the buckle-shaped attachment 5.

Example 5

In Example 5, a multi-grid hollow jaw pad mold with a honeycomb arrangement is prepared using a vacuum forming mold (as shown in FIG. 4 ), wherein the jaw pad height is 10 mm, and the rest is the same as in Example 4.

The jaw pad prepared in Examples 4-5 has excellent bite force and can meet the needs of opening the bite. The single-capsule unit located at the tooth tip is filled with non-Newtonian fluid or phase change material to balance the bite force at the tooth tip. The remaining single-capsule units are filled with rose essence and water, which can slowly release rose essence to continuously freshen breath.

Example 6

A three-dimensional honeycomb-arranged multi-grid hollow jaw pad mold (as shown in FIG5 ) is prepared by using a blister mold. FIG5 a is a top view of the jaw pad mold, and FIG5 b is a schematic diagram of the three-dimensional structure of the jaw pad mold. The hexagonal grids in FIG5 correspond to each single capsule unit. As shown in FIG5 b , the hexagonal grids bulge upward to form a hollow structure in the middle. The hollow structure corresponds to the capsule cavity of each single capsule unit, and the four walls of the hexagonal grids correspond to the capsule shell of the single capsule unit.

Among them, the total number of single-capsule units is 77, the material of the sac-shaped shell is thermoplastic elastomer TPE, the sac-shaped cavity of the single-capsule unit located at the apex of the tooth is filled with agar and phase change wax, and the sac-shaped cavity of the single-capsule unit is filled with saliva indicator and water, and then a hot-sealing machine is used to seal the single-capsule unit to obtain a jaw pad with a hexagonal cross-sectional shape. The shape of the jaw pad is a three-dimensional spider web, and the height of the jaw pad is 8 mm. The jaw pad 2 is welded to the orthodontic appliance 1 by laser welding.

The prepared jaw pad has excellent bite force and can meet the needs of opening the bite. The single-capsule unit located at the tooth tip is filled with non-Newtonian fluid or phase change material to balance the bite force at the tooth tip. The remaining single-capsule units are filled with saliva indicators and water, which can slowly release saliva indicators to maintain oral safety.

Example 7

A three-dimensional tunnel-shaped multi-grid hollow jaw pad mold (as shown in FIG6 ) is prepared by using a blister mold. FIG6 a is a top view of the jaw pad mold, and FIG6 b is a schematic diagram of the three-dimensional structure of the jaw pad mold. The long strip-shaped grids in FIG6 correspond to each single capsule unit. As shown in FIG6 b , each of the long strips bulges upward to form a hollow structure in the middle. The hollow structure corresponds to the capsule cavity of each single capsule unit, and the four walls of the long strip-shaped grid correspond to the capsule shell of the single capsule unit.

Among them, the number of single-capsule units is 36, the material of the capsule shell is thermoplastic elastomer TPE, the capsule cavity of the single-capsule unit located at the apex of the tooth is filled with agar and phase change wax, and the capsule cavity of the single-capsule unit is filled with anti-caries drugs and water, and then a hot laminating machine is used to seal the single-capsule unit to obtain a jaw pad with a quadrilateral cross-sectional shape. The shape of the jaw pad is a three-dimensional tunnel, and the height of the jaw pad is 10 mm. As shown in Figures 12-14, the jaw pad 2 is welded to the orthodontic appliance 1 by laser welding.

The prepared jaw pad has excellent bite force and can meet the needs of opening the bite. The non-Newtonian fluid or phase change material filled in the single capsule unit located at the tooth tip balances the bite force at the tooth tip and can also slowly release anti-caries drugs to treat or prevent caries.

Example 8

A three-dimensional spider web-shaped multi-grid hollow jaw pad mold (as shown in FIG7 ) was prepared by using a blister mold. FIG7 a is a top view of the jaw pad mold, and FIG7 b is a schematic diagram of the three-dimensional structure of the jaw pad mold. The long strip-shaped grids in FIG7 correspond to each single capsule unit. As shown in FIG7 b , the middle of the long strip-shaped grid is concave downward to form a hollow structure in the middle. The hollow structure corresponds to the capsule cavity of each single capsule unit. The number of single capsule units is 22.

Among them, the material of the sac-like shell is thermoplastic elastomer TPE, and agar and phase change wax are filled in the sac-like cavity of the single sac unit located at the apex of the tooth. The sac-like cavity of the single sac unit is filled with anti-caries drugs and water, and then a hot laminating machine is used to seal the single sac unit to obtain a jaw pad with a quadrilateral cross-sectional shape. The shape of the jaw pad is a three-dimensional grid, and the height of the jaw pad is 10 mm. The jaw pad 2 is welded to the orthodontic appliance 1 by laser welding.

The prepared jaw pad has excellent bite force and can meet the needs of opening the bite. The non-Newtonian fluid or phase change material filled in the single capsule unit located at the tooth tip balances the bite force at the tooth tip and can also slowly release anti-caries drugs to treat or prevent caries.

Example 9

A three-dimensional spiral hollow jaw pad mold is prepared by using a blister mold, in which the grids correspond to the single capsule units, and the hollow parts of the grids are the sac-like cavities of the single capsule units. The material of the sac-like shell is thermoplastic elastomer TPE, and agar and phase change wax are filled in the sac-like cavity of the single capsule unit located at the apex of the tooth, and drugs for treating periodontitis and water are filled in the sac-like cavity of the single capsule unit. A hot laminating machine is then used to seal the single capsule unit to obtain a jaw pad with a circular cross-section. The shape of the jaw pad is three-dimensional spiral, and the height of the jaw pad is 10 mm. The jaw pad 2 is welded to the orthodontic appliance 1 by laser welding.

The prepared jaw pad has excellent bite force and can meet the needs of opening the bite. The non-Newtonian fluid or phase change material filled with the single capsule unit located at the tooth tip balances the bite force at the tooth tip. At the same time, it can also slowly release drugs for treating or relieving periodontitis to maintain oral safety.

The above embodiments are preferred implementations of the invention, but the implementations of the present invention are not limited to the above examples, and any other changes, modifications, substitutions, and combined simplifications that do not deviate from the spirit and principles of the present invention are equivalent.

The orthodontic appliance in the following embodiments is an invisible brace formed by hot-pressing a hot-pressed film made of a thermoplastic polymer material and having a cavity consistent with the shape of the patient's jaw.

Example 10

As shown in FIGS. 19-22, a jaw pad 2 is provided on the surface of the posterior tooth area on one side of the appliance 1 close to the opposing jaw. The jaw pad 2 includes a capsule 3 and a side wing 4 with a hole. The side of the capsule 3 in contact with the appliance 1 is adapted to the anatomical shape of the bottom surface of the tooth. The appliance 1 also includes a button-shaped attachment 5. As shown in FIGS. 23-25, the appliance 1 and the jaw pad 2 are buckled together through the side wing 4 with a hole and the button-shaped attachment 5, wherein the button-shaped attachment 5 and the appliance 1 are bonded with glue.

Among them, the jaw pad 2 is prepared by a mold forming process, specifically, a hollow jaw pad mold is prepared by a blister mold, the hollow part of the mold corresponds to the sac-like cavity, the material of the sac-like shell is thermoplastic polyurethane elastomer TPU, the hardness is 85A, the water absorption rate is 2.15%, water is filled into the sac-like cavity, the filling amount is 100%, the cross-sectional shape of the catheter is square, and the jaw pad can be obtained by sealing with a hot laminating machine. The height of the jaw pad is 2mm, and the wall thickness of the sac-like shell is 0.5mm; the thickness-to-diameter ratio of the sac-like shell is 1:2. Punch holes in the side wing 4, glue the side wing 4 with holes to the jaw pad 2, glue the buckle-like attachment 5 to the appliance 1, and fix the jaw pad 2 to the appliance 1 by buckling the side wing 4 with holes and the buckle-like attachment 5.

The prepared jaw pad has good bite force and can meet the needs of opening the bite.

Embodiment 11

As shown in Figures 26-31, a jaw pad 2 is provided on each side of the posterior tooth area of the appliance 1 near the opposing jaw, and the jaw pad 2 includes a capsule 3, a side wing with a hole 4 and an integrally retractable catheter 6 connecting the left and right side capsules 3; wherein, the side of the capsule 3 in contact with the appliance 1 is adapted to the anatomical shape of the bottom surface of the tooth; the connection structure between the catheter 6 in the jaw pad 2 and the two capsules 3 is shown in Figures 32 and 33; the appliance 1 also includes a button-shaped attachment 5; the appliance 1 and the jaw pad 2 are buckled and fixed by the side wing with a hole 4 and the button-shaped attachment 5, wherein the button-shaped attachment 5 and the appliance 1 are bonded with glue.

Among them, the jaw pad 2 is prepared by a mold forming process, specifically, a hollow jaw pad mold is prepared by a blister mold, the hollow part corresponds to the sac-like cavity, the material of the sac-like shell is thermoplastic polyurethane elastomer TPU, the hardness is 85A, the water absorption rate is 2.15%, water is filled into the sac-like cavity, the filling amount is 100%, the cross-sectional shape of the catheter is square, and the jaw pad can be obtained by sealing with a hot laminating machine. The height of the jaw pad is 2mm, and the wall thickness of the sac-like shell is 0.5mm; the thickness-to-diameter ratio of the sac-like shell is 1:2. Punch holes in the side wing 4, glue the side wing 4 with holes to the jaw pad 2, glue the buckle-shaped attachment 5 to the appliance 1, and fix the jaw pad 2 to the appliance 1 by buckling the side wing 4 with holes and the buckle-shaped attachment 5.

The cross-sectional shape of the catheter is circular; the inner diameter of the catheter is 0.5 mm; and the wall thickness of the catheter is 0.25 mm.

The prepared jaw pad has good bite force and can meet the needs of open bite, and the two sacs of the jaw pad are respectively arranged in the left and right posterior tooth areas. Since the catheter connects the two sacs of the jaw pad, the left and right bite forces can be better balanced.

Example 12

A jaw pad 2 is provided on each of the surfaces of the posterior teeth area on both sides of the orthodontic appliance 1 close to the opposing jaw, and the jaw pad 2 includes a capsule 3, sleeve-type side wings 4 and a conduit 6 connecting the left and right side capsules 3; wherein, the side of the capsule 3 in contact with the orthodontic appliance 1 is adapted to the anatomical shape of the bottom surface of the tooth; the connection structure between the conduit 6 in the jaw pad 2 and the two capsules 3 is the same as that in Example 2; the orthodontic appliance 1 also includes a rod-shaped attachment; the orthodontic appliance 1 and the jaw pad 2 are fixed by plugging together the sleeve-type side wings 4 and the rod-shaped attachment.

The jaw pad 2 is prepared by a mold forming process, specifically, a hollow jaw pad mold is prepared by a blister mold, the hollow part corresponds to a sac-like cavity, the material of the sac-like shell is thermoplastic polyurethane elastomer silicone rubber, the hardness is 42A, the water absorption rate is 0.05%, the air is filled into the sac-like cavity, the filling amount is 130%, the cross-sectional shape of the catheter is a trapezoid, and the jaw pad can be obtained by sealing with a hot laminating machine. The height of the jaw pad is 2mm, and the wall thickness of the sac-like shell is 1mm; the thickness-to-diameter ratio of the sac-like shell is 1:1. The sleeve-type side wing 4 is bonded to the jaw pad 2 with glue, and the rod-shaped attachment is bonded to the appliance 1. The jaw pad 2 is fixed to the appliance 1 by plugging the sleeve-type side wing 4 and the rod-shaped attachment.

The cross-sectional shape of the catheter is circular; the inner diameter of the catheter is 0.5 mm; and the wall thickness of the catheter is 0.25 mm.

The prepared jaw pad has good bite force and can meet the needs of open bite, and the two sacs of the jaw pad are respectively arranged in the left and right posterior tooth areas. Since the catheter connects the two sacs of the jaw pad, the left and right bite forces can be better balanced.

Example 13

A jaw pad 2 is provided on each of the surfaces of the posterior teeth area on both sides of the orthodontic appliance 1 close to the opposing jaw, and the jaw pad 2 includes a capsule 3, sleeve-type side wings 4 and a conduit 6 connecting the left and right side capsules 3; wherein, the side of the capsule 3 in contact with the orthodontic appliance 1 is adapted to the anatomical shape of the bottom surface of the tooth; the connection structure between the conduit 6 in the jaw pad 2 and the two capsules 3 is the same as that in Example 2; the orthodontic appliance 1 also includes a rod-shaped attachment; the orthodontic appliance 1 and the jaw pad 2 are fixed by plugging together the sleeve-type side wings 4 and the rod-shaped attachment.

Among them, the jaw pad 2 is prepared by a mold forming process, specifically, a hollow jaw pad mold is prepared by a blister mold, the hollow part corresponds to the saccular cavity, the material of the saccular shell is thermoplastic polyurethane elastomer TPE, the hardness is 70A, the water absorption rate is 1.5%, the non-Newtonian fluid agar is filled into the saccular cavity, the filling amount is 100%, the cross-sectional shape of the catheter is elliptical, and the jaw pad can be obtained by sealing with a hot laminating machine. The height of the jaw pad is 2mm, and the wall thickness of the saccular shell is 0.7mm; the thickness-to-diameter ratio of the saccular shell is 0.7:2.3. The sleeve-type side wing 4 is bonded to the jaw pad 2 with glue, and the rod-shaped attachment is bonded to the appliance 1. The jaw pad 2 is fixed to the appliance 1 by plugging the sleeve-type side wing 4 and the rod-shaped attachment.

The cross-sectional shape of the catheter is circular; the inner diameter of the catheter is 0.5 mm; and the wall thickness of the catheter is 0.25 mm.

The prepared jaw pad has excellent bite force and can meet the needs of opening the bite. When the bite force is uneven, the non-Newtonian fluid can buffer and neutralize the bite strength. The two sacs of the jaw pad are respectively arranged in the left and right posterior tooth areas. Since the catheter connects the two sacs of the jaw pad, the left and right bite forces can be better balanced.

Embodiment 14

A jaw pad 2 is provided on each of the surfaces of the posterior teeth area on both sides of the orthodontic appliance 1 close to the opposing jaw. The jaw pad 2 includes a capsule 3 and a duct 6 connecting the capsules 3 on the left and right sides; wherein, the side of the capsule 3 in contact with the orthodontic appliance 1 is adapted to the anatomical shape of the bottom surface of the tooth; the connection structure between the duct 6 in the jaw pad 2 and the two capsules 3 is the same as that in Example 2; the jaw pad 2 and the orthodontic appliance 1 are welded together by laser welding.

The jaw pad 2 is prepared by a mold forming process, and specifically a hollow jaw pad mold is prepared by a blister mold. The hollow part corresponds to a saccular cavity. The material of the saccular shell is thermoplastic polyurethane elastomer TPE, with a hardness of 70A and a water absorption rate of 0.2%. The saliva indicator is filled into the saccular cavity, and the filling amount is 100%. The cross-sectional shape of the catheter is elliptical. The jaw pad can be obtained by sealing with a hot laminating machine. The height of the jaw pad is 4mm, and the wall thickness of the saccular shell is 0.7mm; the thickness-to-diameter ratio of the saccular shell is 0.7:1.3. The jaw pad 2 is welded to the orthodontic appliance 1 by laser welding.

The cross-sectional shape of the catheter is circular; the inner diameter of the catheter is 0.5 mm; and the wall thickness of the catheter is 0.25 mm.

Embodiment 15

The jaw pad structure and the connection method between the jaw pad 2 and the orthodontic appliance 1 of Example 6 are the same as those of Example 5.

The jaw pad 2 is prepared by a mold forming process, and specifically a hollow jaw pad mold is prepared by a blister mold. The hollow part corresponds to a saccular cavity. The material of the saccular shell is thermoplastic polyurethane elastomer TPE, with a hardness of 70A and a water absorption rate of 60%. The saliva indicator is filled into the saccular cavity, and the filling amount is 100%. The cross-sectional shape of the catheter is elliptical. The jaw pad can be obtained by sealing with a hot laminating machine. The height of the jaw pad is 4mm, and the wall thickness of the saccular shell is 0.7mm; the thickness-to-diameter ratio of the saccular shell is 0.7:1.3. The jaw pad 2 is welded to the orthodontic appliance 1 by laser welding.

The cross-sectional shape of the catheter is circular; the inner diameter of the catheter is 0.5 mm; and the wall thickness of the catheter is 0.25 mm.

Example 16

The jaw pad structure and the connection method between the jaw pad 2 and the orthodontic appliance 1 of Example 7 are the same as those of Example 5.

The jaw pad 2 is prepared by a mold forming process, specifically, a hollow jaw pad mold is prepared by a blister mold, the hollow part corresponds to a saccular cavity, the material of the saccular shell is a thermoplastic polyurethane elastomer TPE, the hardness is 70A, the water absorption rate is 70%, the saliva indicator is filled into the saccular cavity, the filling amount is 100%, the cross-sectional shape of the catheter is elliptical, and the jaw pad is obtained by sealing with a hot laminating machine, the height of the jaw pad is 4mm, the wall thickness of the saccular shell is 0.7mm; the thickness-to-diameter ratio of the saccular shell is 0.7:1.3. The jaw pad 2 is welded to the orthodontic appliance 1 by laser welding.

The cross-sectional shape of the catheter is circular; the inner diameter of the catheter is 0.5 mm; and the wall thickness of the catheter is 0.25 mm.

Embodiment 17

The height of the jaw pad of Example 8 is 6 mm, and the rest is the same as that of Example 7.

The jaw pad prepared in Example 5-8 has good bite force and can meet the demand for open bite. The two bags of the jaw pad are respectively arranged on the left and right posterior teeth areas. Since the catheter connects the two bags of the jaw pad, the left and right bite forces can be better balanced. At the same time, the jaw pad can also slowly release saliva indicators to maintain oral safety.

Embodiment 18

The jaw pad structure and the connection method between the jaw pad 2 and the orthodontic appliance 1 of Example 9 are the same as those of Example 5.

The jaw pad 2 is prepared by a mold forming process, specifically, a hollow jaw pad mold is prepared by a blister mold, the hollow part corresponds to a sac-like cavity, the material of the sac-like shell is a thermoplastic polyurethane elastomer TPE, the hardness is 70A, the water absorption rate is 70%, the rose essence is filled into the sac-like cavity, the filling amount is 100%, the cross-section of the catheter is elliptical, and the jaw pad is sealed by a hot laminating machine. The height of the jaw pad is 6mm, the wall thickness of the sac-like shell is 0.7mm; the thickness-to-diameter ratio of the sac-like shell is 0.7:2.3. The jaw pad 2 is welded to the orthodontic appliance 1 by laser welding.

The cross-sectional shape of the catheter is circular; the inner diameter of the catheter is 0.5 mm; and the wall thickness of the catheter is 0.25 mm.

Examples 19-20

The jaw pad height of Example 10 is 8 mm, the jaw pad height of Example 11 is 10 mm, and the rest are the same as Example 9.

The jaw pads prepared in Examples 9-11 have good bite force and can meet the needs of opening the bite. The two bags of the jaw pad are respectively arranged on the left and right posterior tooth areas. Since the catheter connects the two bags of the jaw pad, the bite force of the left and right sides can be better balanced. At the same time, the jaw pad can also slowly release rose essence to continuously freshen the breath.

Embodiment 21

The jaw pad structure and the connection method between the jaw pad 2 and the orthodontic appliance 1 of Example 12 are the same as those of Example 5.

The jaw pad 2 is prepared by a mold forming process, specifically, a hollow jaw pad mold is prepared by a blister mold, the hollow part corresponds to the sac-like cavity, the material of the sac-like shell is thermoplastic polyurethane elastomer TPE, the hardness is 70A, the water absorption rate is 70%, the anti-caries drug is filled into the sac-like cavity, the filling amount is 100%, the cross-sectional shape of the catheter is elliptical, and the jaw pad can be obtained by sealing with a hot laminating machine. The height of the jaw pad is 6mm, and the wall thickness of the sac-like shell is 0.7mm; the thickness-to-diameter ratio of the sac-like shell is 0.7:2.3. The jaw pad 2 is welded to the orthodontic appliance 1 by laser welding;

The cross-sectional shape of the catheter is circular; the inner diameter of the catheter is 0.5 mm; and the wall thickness of the catheter is 0.25 mm.

The prepared jaw pad has good bite force and can meet the needs of opening the bite. The two capsules of the jaw pad are respectively arranged in the left and right posterior tooth areas. Since the catheter connects the two capsules of the jaw pad, the bite force of the left and right sides can be better balanced. At the same time, it can also slowly release anti-caries drugs to treat or prevent caries.

Embodiment 22

The jaw pad structure and the connection method between the jaw pad 2 and the orthodontic appliance 1 of Example 13 are the same as those of Example 5.

The jaw pad 2 is prepared by a mold forming process, specifically, a hollow jaw pad mold is prepared by a blister mold, the hollow part corresponds to the sac-like cavity, the material of the sac-like shell is thermoplastic polyurethane elastomer TPE, the hardness is 70A, the water absorption rate is 70%, the drug for treating periodontitis is filled into the sac-like cavity, the filling amount is 100%, the cross-sectional shape of the conduit is elliptical, and the jaw pad can be obtained by sealing with a hot laminating machine. The height of the jaw pad is 6mm, and the wall thickness of the sac-like shell is 0.7mm; the thickness-to-diameter ratio of the sac-like shell is 0.7:2.3. The jaw pad 2 is welded to the appliance 1 by laser welding;

The cross-sectional shape of the catheter is circular; the inner diameter of the catheter is 0.5 mm; and the wall thickness of the catheter is 0.25 mm.

The prepared jaw pad has good bite force and can meet the needs of opening the bite. The two capsules of the jaw pad are respectively set in the left and right posterior teeth areas. Since the catheter connects the two capsules of the jaw pad, the bite force of the left and right sides can be better balanced. At the same time, it can also slowly release drugs for treating periodontitis to maintain oral safety.

The above embodiments are preferred implementations of the invention, but the implementations of the present invention are not limited to the above examples, and any other changes, modifications, substitutions, and combined simplifications that do not deviate from the spirit and principles of the present invention are equivalent.

Although the specific embodiments of the present invention are described above, it should be understood by those skilled in the art that these are only examples, and various changes or modifications may be made to these embodiments without departing from the principles and essence of the present invention. Therefore, the protection scope of the present invention is limited by the appended claims.

Claims (20)

A jaw pad, characterized in that it comprises n single-cystic units, wherein the single-cystic units comprise a cystic cavity, a cystic shell and a filling material filled in the cystic cavity, wherein n is an integer, and n≥2; the n single-cystic units are connected to each other, and the n single-cystic units are not connected to each other. The jaw pad according to claim 1, characterized in that the heights of the n single-bladder units are uniform or non-uniform, preferably non-uniform; The distribution of the non-uniform height is preferably a gradient height distribution, for example, low in the middle and high around, or high in the middle and low around; And/or, the side of the single capsule unit in contact with the appliance is adapted to the anatomical shape or planar shape of the bottom surface of the tooth; And/or, the jaw pad is in contact with the appliance and does not cover the incisor area. The jaw pad according to claim 1 or 2, characterized in that the shape of the jaw pad is a three-dimensional grid, a three-dimensional spider web, a three-dimensional tunnel or a three-dimensional spiral; And/or, the cross-sectional shape of the single capsule unit is polygonal, preferably triangular, quadrilateral or hexagonal, for example, quadrilateral. The jaw pad according to any one of claims 1 to 3, characterized in that the height of the jaw pad is 2-10 mm, for example, 4 mm, 6 mm or 8 mm; And/or, the wall thickness of the capsule-shaped shell is 0.05-2 mm, preferably 0.5-0.8 mm; And/or, the thickness-to-diameter ratio of the sac-shaped shell is 1:(0-9); And/or, the jaw pad is fixed to the orthodontic appliance by bonding, plugging, snapping, welding or embedding. The jaw pad according to any one of claims 1 to 4, characterized in that the material of the sac-shaped shell is a thermoplastic elastomer, the filling material is water, the shape of the jaw pad is a three-dimensional grid, and the height of the jaw pad is 2 mm; Alternatively, the material of the capsule-shaped shell is thermoplastic elastomer, the filling material is water and strawberry flavor essence, the shape of the jaw pad is a three-dimensional grid, and the height of the jaw pad is 4 mm; Alternatively, the material of the capsule-shaped shell is thermoplastic elastomer, the filling material is agar, phase change wax, rose essence and water, the shape of the jaw pad is a three-dimensional grid, and the height of the jaw pad is 6 mm; Alternatively, the material of the capsule-shaped shell is a thermoplastic elastomer, the filling material is agar, phase change wax, an anti-caries drug and water, the shape of the jaw pad is a three-dimensional tunnel, and the height of the jaw pad is 10 mm; Alternatively, the material of the capsule-shaped shell is thermoplastic elastomer, the filling material is agar, phase change wax, a drug for treating periodontitis and water, the shape of the jaw pad is a three-dimensional spiral, and the height of the jaw pad is 10 mm. The jaw pad according to any one of claims 1 to 5, characterized in that the n single-bladder units are filled with the same or different filling materials, preferably filled with different filling materials; and/or, the filling material comprises one or more of a liquid, a gas, a phase change material and a non-Newtonian fluid; The liquid preferably includes water and/or a solution containing a functional agent; the functional agent in the solution containing a functional agent preferably includes one or more of an aromatic, an indicator and a drug; the aromatic is preferably an essence, and the essence is preferably a strawberry flavor and/or a rose flavor; the indicator is preferably a saliva indicator; the drug is preferably an anti-caries drug and/or a drug for treating periodontitis; Wherein, the gas preferably includes one or more of air, nitrogen, carbon dioxide and oxygen, for example, air; Wherein, the phase change material is preferably phase change wax; Wherein, the non-Newtonian fluid preferably includes one or more of agar, concentrated sugar water and apple pulp. The jaw pad according to any one of claims 1 to 6, characterized in that the elongation at break of the material of the sac-shaped shell is 30-1500%, preferably 350-940%; And/or, the hardness of the material of the capsule-shaped shell is 30-95A, preferably 42-85A; and/or, the water absorption rate of the material of the sac-shaped shell is 0.05%-150%; Preferably, the water absorption rate of the material of the sac-shaped shell is 0.05%-5%, more preferably 0.05%-2%; Preferably, the water absorption rate of the material of the bladder-shaped shell is 5%-150%, more preferably 5%-90%, and more preferably 10%-60%; And/or, the material of the sac-shaped shell is silicone rubber, thermoplastic elastomer or thermoplastic plastic. The jaw pad according to any one of claims 1-7 is characterized in that the filling amount of the filling material is 0 or more, preferably 10%-200%, and more preferably 100-130%, where the percentage is the percentage of the volume of the filling material to the volume of the initial cystic cavity. A method for preparing a jaw pad as claimed in any one of claims 1 to 8, characterized in that it comprises the following steps: filling the filling material into the sac-like cavity in each of the single-sac units and then sealing the cavity to obtain the jaw pad. The method for preparing the jaw pad according to claim 9, characterized in that the capsule-shaped shell is made by injection molding, injection molding, vacuum molding or additive manufacturing; And/or, the filling method is injection, pre-embedding or gas compression; And/or, the filling device is a filling machine; And/or, the jaw pad includes a conduit, and the conduit and the jaw pad are connected by welding; Wherein, the welding equipment is preferably a heat-bonding machine; And/or, the sealing method is heat sealing, welding or gluing; Wherein, the heat sealing equipment is preferably a radio frequency electronic heat sealing machine. A jaw pad, characterized in that it comprises a capsule, wherein the capsule comprises a capsule-shaped shell, a capsule-shaped cavity and a filling material filled in the capsule-shaped cavity; the jaw pad contacts with an orthodontic appliance and does not cover an incisor area. The jaw pad according to claim 11, characterized in that the elongation at break of the material of the sac-shaped shell is 30-1500%, preferably 350-940%, for example 370% or 650%; And/or, the hardness of the material of the sac-shaped shell is 30-95A, preferably 42-85A, for example 62A or 70A. The jaw pad according to claim 11 or 12, characterized in that the water absorption rate of the material of the sac-shaped shell is 0.05%-150%; Preferably, the water absorption rate of the material of the sac-shaped shell is 0.05%-5%, more preferably 0.05%-2%, for example 0.1% or 0.5%; Preferably, the water absorption rate of the material of the bladder-shaped shell is 5%-150%, more preferably 5%-90%, and more preferably 10%-60%; And/or, the material of the sac-shaped shell is silicone rubber, thermoplastic elastomer or thermoplastic plastic. The jaw pad according to any one of claims 11 to 13, characterized in that the side of the jaw pad in contact with the orthodontic appliance is adapted to the anatomical shape or planar shape of the bottom surface of the tooth; And/or, the height of the jaw pad is 2-10 mm, for example, 4 mm, 6 mm or 8 mm; and/or, the wall thickness of the capsule-shaped shell is 0.5-2 mm, preferably 0.5-1 mm, more preferably 0.5-0.8 mm, for example 0.7 mm; and/or, the thickness-to-diameter ratio of the sac-shaped shell is 1:(0.1-9), for example, 1:1, 1:2, 0.7:1.3, 0.7:2.3; And/or, the filling amount of the filling material is 0 or more, preferably 10%-200%, more preferably 100-130%, where the percentage is the percentage of the volume of the filling material to the volume of the initial sac-like cavity. The jaw pad according to any one of claims 11 to 14, characterized in that the material of the sac-shaped shell is a thermoplastic elastomer, the hardness of the material of the sac-shaped shell is 85A, the water absorption rate of the material of the sac-shaped shell is 2.15%, the height of the jaw pad is 2 mm, the wall thickness of the sac-shaped shell is 0.5 mm, and the thickness-to-diameter ratio of the sac-shaped shell is 1:2; Alternatively, the material of the sac-shaped shell is a thermoplastic elastomer, the hardness of the material of the sac-shaped shell is 42A, the water absorption rate of the material of the sac-shaped shell is 0.05%, the height of the jaw pad is 2 mm, the wall thickness of the sac-shaped shell is 1 mm, and the thickness-to-diameter ratio of the sac-shaped shell is 1:1; Alternatively, the material of the sac-shaped shell is a thermoplastic elastomer, the hardness of the material of the sac-shaped shell is 70A, the water absorption rate of the material of the sac-shaped shell is 1.5%, the height of the jaw pad is 2 mm, the wall thickness of the sac-shaped shell is 0.7 mm, and the thickness-to-diameter ratio of the sac-shaped shell is 0.7:2.3; Alternatively, the material of the sac-shaped shell is a thermoplastic elastomer, the hardness of the material of the sac-shaped shell is 70A, the water absorption rate of the material of the sac-shaped shell is 0.2%, the height of the jaw pad is 4 mm, the wall thickness of the sac-shaped shell is 0.7 mm, and the thickness-to-diameter ratio of the sac-shaped shell is 0.7:1.3; Alternatively, the material of the sac-shaped shell is a thermoplastic elastomer, the hardness of the material of the sac-shaped shell is 70A, the water absorption rate of the material of the sac-shaped shell is 60%, the height of the jaw pad is 4 mm, the wall thickness of the sac-shaped shell is 0.7 mm, and the thickness-to-diameter ratio of the sac-shaped shell is 0.7:1.3; Alternatively, the material of the sac-shaped shell is a thermoplastic elastomer, the hardness of the material of the sac-shaped shell is 70A, the water absorption rate of the material of the sac-shaped shell is 70%, the height of the jaw pad is 4 mm, the wall thickness of the sac-shaped shell is 0.7 mm, and the thickness-to-diameter ratio of the sac-shaped shell is 0.7:1.3; Alternatively, the material of the sac-shaped shell is thermoplastic elastomer, the hardness of the material of the sac-shaped shell is 70A, the water absorption rate of the material of the sac-shaped shell is 70%, the height of the jaw pad is 6 mm, the wall thickness of the sac-shaped shell is 0.7 mm, and the thickness-to-diameter ratio of the sac-shaped shell is 0.7:2.3. The jaw pad according to any one of claims 11 to 15, characterized in that the filling material comprises one or more of liquid, gas, phase change material and non-Newtonian fluid; The liquid preferably includes water and/or a solution containing a functional agent; the functional agent in the solution containing a functional agent preferably includes one or more of an aromatic, an indicator and a drug; the aromatic is preferably an essence, and the essence is preferably a strawberry flavor and/or a rose flavor; the indicator is preferably a saliva indicator; the drug is preferably an anti-caries drug and/or a drug for treating periodontitis; Wherein, the gas preferably includes one or more of air, nitrogen, carbon dioxide and oxygen, for example, air; Wherein, the phase change material is preferably phase change wax; Wherein, the non-Newtonian fluid is preferably one or more of agar, concentrated sugar water and apple pulp. The jaw pad according to any one of claims 11 to 16, characterized in that the jaw pad comprises at least two of the sacs and a conduit connecting the at least two of the sacs; Preferably, the cross-sectional shape of the conduit is circular, elliptical, square, trapezoidal or triangular; Preferably, the inner diameter of the catheter is 0.05-5 mm; Preferably, the wall thickness of the conduit is 0.02-2 mm; Preferably, the catheter is wholly or partially retractable or non-retractable; Preferably, the catheter is filled with the filling material; the filling amount of the filling material is preferably 0-100%, where the percentage is the percentage of the volume of the filling material to the volume of the catheter. The jaw pad according to any one of claims 11 to 17 is characterized in that the jaw pad is fixed to the orthodontic appliance by bonding, plugging, snapping, welding or embedding. A method for preparing a jaw pad as claimed in any one of claims 11 to 18, characterized in that it comprises the following steps: filling the filling material into the sac-like cavity and then sealing it to obtain the jaw pad. The method for preparing the jaw pad according to claim 19, characterized in that the capsule-shaped shell is made by injection molding, injection molding, vacuum molding or additive manufacturing; And/or, the filling method is injection, pre-embedding or gas compression; And/or, the filling device is a filling machine; And/or, the jaw pad includes a conduit, and the conduit and the jaw pad are connected by welding; Wherein, the welding equipment is preferably a heat-bonding machine; And/or, the sealing method is heat sealing, welding or gluing; Wherein, the heat sealing equipment is preferably a radio frequency electronic heat sealing machine.