JP7390667B2 - Occlusal registration device and occlusal registration method for complete dentures - Google Patents

Description

TECHNICAL FIELD The present invention relates to an occlusal recording device used for manufacturing complete dentures in dental treatment, and an occlusal recording method using this occlusal recording device.

When manufacturing complete dentures in dental treatment, a working model is usually made from a patient, and the appropriate occlusal position is determined based on this working model. For this reason, occlusal recording is performed using a wax ridge made of paraffin wax or the like. Conventionally, various instruments have been proposed for this occlusal registration.
For example, Patent Document 1 discloses a rigid plate in which a U-shaped paraffin wax occlusal ridge is placed on a resin base during complete denture manufacture, and is fixed to the portions of the paraffin wax occlusal ridge corresponding to left and right molars. The rigid plate has a protruding upper part that simulates the three-dimensional shape of the first premolar, second premolar, first molar, and second molar, and the back surface or lower part is for fixing to the occlusal ridge. A device equipped with a fixing means has been proposed.

According to the technology described in Patent Document 1, by providing a fixing means for fixing to the occlusal ridge, the rigid plate can be securely fixed to the occlusal ridge, accurately positioned without vertical displacement, and a simulated three-dimensional shape can be created. It is said that it is possible to perform occlusal registration while adjusting the upper shape of the occlusion so that it is well-balanced front to back, left and right, and the accuracy of occlusal registration is improved compared to conventional methods.

By the way, in the conventional general articulation method using a wax ridge made of paraffin wax or the like, the wax ridge must be heated to soften it, which makes it difficult to record the bite. First, when heating and softening the wax embankment, a large area must be uniformly softened. In addition, the marking had to be completed quickly in just a few minutes while the material was being heated and softened, leaving both the operator and the patient with little time to spare. On the other hand, in order to slow down the curing process in order to prolong the working time, it is necessary to raise the heating temperature or remove the wax dam midway through the sampling process and start over again, which can lead to burns and increase the time required for the procedure. I need it. Another method is to place the wax ridges in contact with each other and make a mark, but this involves working face-to-face, and if the planes are not aligned in the first place, the wax ridges may rise or come off from the patient's alveolar ridge. This was also a factor that made occlusal registration difficult.

Further, in Patent Documents 2 and 3, a lower member is bonded using paraffin wax at positions corresponding to the left and right molars of the mandibular occlusal ridge, and an upper member is bonded at a position facing the lower member of the maxillary foundation floor. A 3D adjuster has been proposed in which the upper member is provided with a plurality of convex portions that are slidable in contact with the lower member. By using such a 3D adjustment tool and bringing the multiple convex parts of the upper member into contact with the lower member rather than the softened wax ridge, it is possible to align the lower jaw regardless of the surgeon's technique. However, the structure of the device is complicated and operation is time-consuming.

Japanese Patent Application Publication No. 2011-62473 Japanese Patent Application Publication No. 2018-23404 International Publication No. 2017/134875

Therefore, the purpose of the present invention is to provide an occlusal recording device for complete dentures with a simple structure that can perform appropriate occlusal recording with simple operations, and an occlusal recording method using this occlusal recording device. There is.

The occlusal registration device for complete dentures of the present invention that solves the above-mentioned problems has a pair of upper and lower wax ridges that are mounted on the upper and lower jaws so as to face each other, and a left and right side of one of the upper and lower wax ridges. In an occlusal recording device for complete dentures equipped with a pair of left and right bite rims fixed to the tops of both sides, the pair of upper and lower wax ridges has a substantially U-shape in plan view including the anterior tooth part and the molar part, and the left and right A pair of bite rims have a fixing part that is fixed to the molar part of one wax ridge and a plurality of marking protrusions that protrude from this fixing part to the other wax ridge side, and the fixing part of the bite rim is attached to the top of the molar part. It is composed of a base plate whose back surface is in close contact with the base plate, and a locking protrusion provided on the back face of the base plate and embedded in the molar part,
The plurality of marking protrusions are each formed in the shape of a rotating body around an axis perpendicular to the surface of the substrate part, have a hemispherical shape or a spherical crown shape at the top, and have the same marking protrusions spaced apart from each other on the surface of the substrate part. The locking protrusion is provided to protrude at a height, and the locking protrusion is provided coaxially with the marking protrusion, and the pair of wax ridges is made of a brazing material that can form an indentation by bite force without being softened by heating. The invention is characterized in that the impression is formed on the wax ridge by occlusal force by repeatedly tapping the molars with the top of the marking protrusion.

One of the wax ridges preferably has a height difference greater than the thickness of the base plate between the molar tooth portion to which the bite rim is fixed and the front tooth portion, and the tops of the plurality of marking protrusions protrude beyond the front tooth portion.

In the occlusal registration device for complete dentures of the present invention, the locking protrusion of the bite rim is preferably provided at a position on the axis on the back surface of the base plate, and the plurality of marking protrusions are preferably provided at positions on the axis on the surface of the base plate. They are set up in a row.

In the occlusal recording device for complete dentures of the present invention, the wax material forming the pair of upper and lower wax ridges is made of soft to hard dental paraffin wax in accordance with JIS-T6502. It is possible to form deep impressions.

A bite recording method using the bite recording device for complete dentures of the present invention is a method of performing bite recording using the above-mentioned bite recording device for complete dentures, in which a pair of teeth are placed on the upper and lower jaws of the patient. At the same time, attaching the wax ridge and fixing bite rims to the molars on both the left and right sides of one of the wax ridges, and tapping at room temperature, indentations made by multiple marking protrusions are made on the molars on both the left and right sides of the other wax ridge. It is characterized by forming and performing occlusal registration for complete dentures.

According to the bite recording device and bite recording method for complete dentures of the present invention, the pair of upper and lower wax ridges are attached to the upper and lower jaw parts so as to face each other, and one of the upper and lower wax ridges is attached to the upper and lower jaw parts. The bite rim fixed to the molar tooth has a locking protrusion on the back surface of a base plate that comes into close contact with the top of the molar tooth, and a plurality of marking protrusions are provided on the surface of the base plate to protrude at the same height. By embedding the locking protrusions of the bite rim in the molar part of the wax ridge, the bit rim can be firmly fixed to the wax ridge, and the plurality of marking protrusions are brought into pressure contact with the molar part of the other wax ridge that has not been softened. It can be pressed evenly and stably. Thereby, it is possible to reliably form a plurality of appropriate indentations, and it is possible to perform occlusal recording with high accuracy.

Furthermore, the pair of upper and lower wax ridges is made of a wax material that is hard enough to record a predetermined indentation by pressing the marking protrusion against the molar area with occlusal force at room temperature. It is easy to operate as there is no need to heat and soften the molars, and tapping can be performed repeatedly, making it possible to form appropriate impressions and easily mark appropriate occlusal positions. Therefore, it is possible to obtain an occlusal registration device for complete dentures with a simple structure that allows appropriate occlusal registration with simple operations, and a occlusal registration method using the same.

In the occlusal registration device for complete dentures of the present invention, a height difference greater than the thickness of the base plate is provided between the molar part and the anterior tooth part of the wax ridge to which the bite rim is fixed, and the tops of the plurality of marking protrusions are arranged in the anterior tooth part. If it is set so that it protrudes more than the other wax ridge, by bringing the pair of wax ridges closer to each other when performing occlusal recording, the surface of the base part of the bite rim will not come into contact with the molar part of the other wax ridge. The tops of the plurality of marking protrusions can be reliably pressed against the molar tooth portion of the other wax ridge, and a sufficient impression can be formed by the tops of the marking protrusions.

In the occlusal registration device for complete dentures of the present invention, the locking protrusion of the bite rim is provided on the back surface of the base plate at a position on the axis, and the plurality of marking protrusions are protruded in a line on the surface of the base plate at positions on the axis. If so, by embedding and fixing the locking protrusions of the bite rim in the molar part of one wax ridge, multiple marking protrusions can be stably placed in positions where they can come into contact with the molar part of the other wax ridge. Therefore, it is easy to adjust the positional relationship between the brazing rod and the bit rim. In addition, if the plurality of marking protrusions are each formed in the shape of a rotating body centered on an axis perpendicular to the surface of the substrate part, each marking protrusion has no directionality, so that when repeatedly tapped, the formed It is possible to prevent each marking protrusion from being guided by each indentation and from forming a record at an inappropriate position.

FIG. 1 is a plan view of the occlusal registration device for complete dentures according to an embodiment of the present invention in an expanded state. FIG. 2 is a side view of the occlusal registration device for complete dentures of FIG. 1; It is a perspective view which shows the state where the bit rim is attached to the lower row embankment. FIG. 3 is a plan view showing the upper and lower wax banks in an expanded state. FIG. 3 is a side view showing the upper and lower wax banks facing each other. 1 shows a bit rim according to an embodiment of the present invention, in which (a) is a side view, (b) is a top view, and (c) is a bottom view. It is a top view which shows the state in which the indentation is formed in the molar part of the upper wax ridge.

Embodiments of the present invention will be described in detail below with reference to the drawings.
As shown in FIGS. 1 to 3, the occlusal recording device 10 for complete dentures of this embodiment includes a pair of upper and lower wax ridges 12a and 12b that are mounted on an upper jaw part 11a and a lower jaw part 11b so as to face each other; A pair of left and right bit rims 13, 13 are provided, which are fixed to both left and right sides of the lower wax embankment 12b shown in the figure.
In this embodiment, the upper jaw part 11a and the lower jaw part 11b may be the patient's jaw, or may be a working model made of plaster or the like that is molded into a shape corresponding to the patient's jaw. The pair of upper and lower wax ridges 12a and 12b may be attached directly to the upper jaw portion 11a and the lower jaw portion 11b, or may be attached while being integrally supported by a base member formed of resin, metal, or the like. You can.

As shown in FIGS. 4 and 5, the pair of upper and lower wax ridges 12a and 12b are formed bodies that are formed so as to protrude in directions facing each other when attached to the upper and lower jaw parts 11a and 11b, respectively. It has a substantially U-shaped portion in plan view including front tooth portions 14a, 14b and molar tooth portions 15a, 15b. Here, the front teeth portions 14a and 14b are areas where artificial teeth for front teeth (dentures) are arranged, and the molar teeth portions 15a and 15b are areas where artificial teeth for molars (dentures) are arranged. The anterior tooth portion 14a and the molar tooth portion 15a are continuous without a clear boundary. The pair of upper and lower brazing banks 12a, 12b are formed from a specific brazing material. The brazing material will be described later.

The bottom of each wax bank 12a, 12b has a shape corresponding to each jaw 11a, 11b so as to be stably supported by each jaw 11a, 11b. The tops of the wax ridges 12a and 12b are attached to the upper and lower jaw parts 11a and 11b, and when the upper and lower jaw parts 11a and 11b are closed, the tops of the upper and lower front tooth parts 14a and 14b face each other, and The tops of the upper and lower molar teeth portions 15a, 15b are shaped to face each other.

In this embodiment, the tops of the anterior tooth part 14a and the molar tooth part 15a of the wax ridge 12a attached to the upper jaw part 11a are formed into a continuous, substantially flat shape. In the wax ridge 12b attached to the lower jaw part 11b, the top of the front tooth part 14b is formed into a substantially planar shape that can come into contact with the planar front tooth part 14a of the upper jaw part 11a substantially entirely. The top part of the molar tooth part 15b is formed in a surface shape that can face the molar part 15b of the wax ridge 12a of the maxillary part 11a in a spaced apart manner when the molar part 15b of the wax ridge 12a of the upper jaw part 11a faces and faces each other in the mounted state, preferably in a substantially parallel manner. There is.

Further, in the wax ridge 12b attached to the lower jaw part 11b, a height difference is provided in a step-like manner between the molar tooth part 15b and the front tooth part 14b. The step-like height difference is set to be larger than the thickness of the substrate portion 13c of the bite rim 13, which will be described later, and smaller than the protrusion height from the back surface of the substrate portion 13c to the tips of the plurality of marking protrusions 13b. This is to make the top of the marking protrusion 13b protrude more than the front tooth portion 14b.

The shapes of the upper and lower wax ridges 12a, 12b are formed after they are attached to the upper jaw part 11a and the lower jaw part 11b. This is because the shape and relative position of the upper jaw part 11a and the lower jaw part 11b, the positions and orientations of the upper and lower wax ridges 12a and 12b, etc. differ from patient to patient.Especially in the case of complete dentures, the upper jaw part 11a and the lower jaw part 11b This is because the relative position, relative direction, relative angle, etc., cannot be specified before taking the bite registration.

Therefore, the shape of the upper and lower wax ridges 12a, 12b may be a shape formed based on the temporarily set relationship between the upper jaw part 11a and the lower jaw part 11b, and the upper and lower wax ridges 12a, 12b The shape may be realized by appropriately adding or removing brazing material to each wax ridge 12a, 12b while the brazing material is attached to the upper jaw portion 11a and the lower jaw portion 11b.

As shown in FIGS. 3 and 6(a) to 6(c), the left and right pair of bite rims 13, 13 have a fixed part 13a fixed to the molar part 15b of the wax ridge 12b attached to the lower jaw part 11b, and It has a plurality of marking protrusions 13b that protrude from the portion 13a toward the wax bank 12a that is attached to the upper jaw portion 11a.

The fixing part 13a includes a base plate part 13c whose back surface is in close contact with the top of the molar tooth part 15b, and a locking protrusion 13d that is provided to protrude from the back surface of the base plate part 13c and is embedded in the molar tooth part 15b. The substrate portion 13c has a plate shape extending in the uniaxial L1 direction with a constant thickness, and both ends are formed in an arc shape. The length and width of the base plate portion 13c in the direction of the axis L1 are approximately the same as the top of the molar tooth portion 15b of the wax ridge 12b, and it is preferable that substantially the entire base portion 13c is disposed within the plane of the top of the molar tooth portion 15b. . In this embodiment, if the base plate portion 13c is large, the top portion of the molar portion 15b may be widened by appropriately adding brazing material to the solder bank 12b.

A plurality of locking protrusions 13d are formed at positions on the axis L1 of the substrate portion 13c so as to protrude from the back surface. Although the number and shape of the locking protrusions 13d can be set as appropriate, in this embodiment, the locking protrusions 13d have the same number of locking protrusions as the marking protrusions 13b. It is provided coaxially with the marking protrusion 13b. With the back surface of the base plate part 13c in close contact with the top of the molar tooth part 15b, the plurality of locking protrusions 13d are embedded in the brazing material of the wax bank 12b, so that the fixing part 13a of the bite rim 13 is attached to the molar tooth of the wax bank 12b. It is firmly fixed to the portion 15b.

The plurality of marking protrusions 13b protrude from the surface of the substrate part 13c at positions on the axis L1 at the same height, and are arranged in a row at intervals. In this embodiment, three marking protrusions 13b are arranged in parallel at equal intervals. By providing three marking protrusions 13b on each of the left and right bit rims 13, even if there is a misalignment in the relative position between the upper and lower solders 12a and 12b during occlusal registration, at least two marking protrusions can be provided on each of the left and right bite rims. It is possible to form an indentation 17 by the portion 13b.

It is preferable that the plurality of marking protrusions 13b each have the shape of a rotating body centered on the axis L2 perpendicular to the surface of the substrate portion 13c, and may have a cylindrical shape, a conical shape, a spherical shape, etc., for example. In particular, it is preferable that the tip of the top of each marking protrusion 13b has a hemispherical shape or a spherical crown shape. If the apex bulges out in a curved manner as described above, when the apex of each marking protrusion 13b comes into pressure contact with the molar part 15a of the opposing wax ridge 12a during occlusal registration, pressure is applied evenly to the surrounding area. Therefore, the occlusal position is not guided by the shape of the marking protrusion 13b, and it is possible to prevent the top from excessively entering the molar portion of the wax ridge 12a due to excessive concentration of pressure. Here, if the radius of curvature of the hemispherical or spherical crown shape is excessively large, it becomes difficult to form an indentation of an appropriate depth.On the other hand, if the radius of curvature is excessively small, it will pierce the wax embankment 12a, which is undesirable. The thickness is preferably .5 to 3.5 mm.

Such a bit rim 13 needs to have strength and hardness that can form an indentation when pressed against the solder material forming the pair of upper and lower solder banks 12a and 12b at room temperature, and it must have a hardness that is higher than that of the solder bank. It is preferably made of a material that is safe and can be used in the oral cavity.

Examples of materials constituting the bit rim 13 include various metals such as stainless steel, various resins such as acrylic resin, and the like. When resin is used, the entire bit rim may be a resin molded product integrally molded.

The pair of wax ridges 12a, 12b presses the top of the marking protrusion 13b of the bite rim 13 against the molar portion 15a by repeatedly tapping a plurality of times at room temperature according to the patient's occlusal force. By such tapping, it is possible to form a depression-shaped impression 17 having a shape corresponding to the tops of the plurality of marking protrusions 13b of the bite rim 13 and having an appropriate depth. During tapping, the brazing material is made of a brazing material that is hard enough not to destroy each of the brazing embankments 12a and 12b and has enough hardness and toughness to prevent excessive deformation of the surroundings.

Here, normal temperature means that each wax ridge 12a, 12b is not heated and softened before the work of pressing the top of the marking protrusion 13b of the bite rim 13 against the molar part 15a by occlusal force when the tooth rim 13 is placed in the patient's oral cavity. The temperature may be, for example, about body temperature or in the range of 35 to 40°C. In addition, the patient's occlusal force is the force that presses the upper jaw part 11a and the lower jaw part 11b in the direction of closing, and is not the force when biting down hard, but the occlusal force when the patient repeatedly bites with light force, tapping. . In this embodiment, the load is, for example, about 4Kg to 9Kg, and the force applied to approximately one marking protrusion 13b may be about 0.5Kg to 2.5Kg.

In this embodiment, when performing bite registration, tapping is performed with the bite registration device of this embodiment attached to the patient's oral cavity. By this tapping, the marking protrusion 13b of the bite rim 13 is brought into pressure contact with the molar part 15a of the wax ridge 12a by the patient's occlusal force, and an indentation 17 is formed. The depth of this indentation 17 is preferably 1.0 mm or more, and preferably 2.0 mm or more and 3.0 mm or less so that it can be taken out of the oral cavity and stably mounted on an articulator.

The brazing material for constructing the pair of upper and lower brazing banks 12a, 12b is made of, for example, soft to hard dental paraffin wax conforming to JIS-T6502. Either soft dental paraffin wax or hard dental paraffin wax may be used, but it is preferable to mix them in various proportions depending on the patient and use them as a brazing material of appropriate hardness. If the brazing material is excessively hard, even if the patient taps the marking protrusion 13b of the bite rim 13 against the opposing molar tooth portion 15a using occlusal force, a sufficient indentation 17 cannot be formed. On the other hand, if it is too soft, tapping may damage the molar part 15a of the wax ridge 12a of the upper jaw part 11a depending on the patient's occlusal force, making it difficult to mark an appropriate occlusal position.

To perform occlusal recording using the occlusal recording device 10 for complete dentures of this embodiment, it is performed on a working model made of plaster or the like that has been formed by, for example, taking an impression.
As shown in FIGS. 4 and 5, the pair of upper and lower wax ridges 12a, 12b of the occlusal registration device 10 for complete dentures are attached to the upper and lower jaw parts 11a and 11b of the patient, and each part is adjusted. Next, the bite rim 13 is fixed to the top of the molar part 15b of the lower jaw part 11b. At this time, if necessary, the solder material of the pair of solder banks 12a, 12b is heated at room temperature or heated, and is adjusted to a shape suitable for the patient by appropriately removing, adding, or deforming the solder material.

With the adjusted pair of wax ridges 12a and 12b attached to the patient, the patient taps by repeatedly opening and closing the upper jaw part 11a and the lower jaw part 11b using occlusal force. By this tapping, a sufficient indentation 17 as shown in FIG. 7 is marked on the molar part 15a of the upper jaw part 11a by the marking protrusion 13b on the bite rim 13 of the lower jaw part 11b. Specifically, the patient is asked to repeatedly tap the wax ridges 12a and 12b until three indentations 17 are left on the left and right sides of the surface. In order to stably attach the wax ridges 12a and 12b to the articulator, indentations 17 are made at least in two places on the left and right sides even if vertical positional deviation occurs.
At this time, if a deep indentation 17 is formed in only one place, the brazing material near that indentation 17 is removed and adjustment is made so that the indentation 17 has approximately the same depth as the other indentations 17. Furthermore, tapping and removal are repeated while referring to the occlusal height and diameter of the previously used denture, the patient's facial appearance, and checking the patient's feel for the height.
The finally obtained indentation 17 is made to have a depth that is stable when the wax ridges 12a, 12b are taken out of the oral cavity and the upper and lower wax ridges 12a, 12b are held in the hand and abut against each other. After completing the occlusal recording in this way, and with the occlusal positions of the pair of upper and lower wax ridges 12a and 12b marked, reference lines and the like are recorded appropriately, and then the pair of upper and lower wax ridges 12a and 12b are The wax ridges 12a and 12b can be removed to prepare a complete denture.

According to the complete denture bite registration device 10 of the present embodiment as described above, the upper and lower wax ridges 12a and 12b are attached to the upper jaw part 11a and the lower jaw part 11b so as to face each other. Here, the bite rim 13 fixed to the molar tooth part 15b of one of the wax ridges 12b has a locking protrusion 13d formed on the back surface of the base plate part 13c that is in close contact with the top of the molar tooth part 15b, and a locking protrusion 13d on the surface of the base base part 13c. A plurality of marking protrusions 13b are formed to protrude at the same height.

Therefore, by embedding the locking protrusion 13b of the bite rim 13 in the molar tooth portion 15b of the wax ridge 12b, the bite rim 13 can be firmly fixed to the wax ridge 12b. Even if the plurality of marking protrusions 13b are brought into pressure contact with the molar tooth portion 15a of the other wax ridge 12a that has not been softened at room temperature, it can be stably and evenly pressed. Thereby, it is possible to reliably form a plurality of appropriate indentations, and it is possible to perform occlusal recording with high accuracy.

Further, the pair of upper and lower brazing banks 12a, 12b are formed of a brazing material having a predetermined hardness. That is, the hardness of the brazing material at room temperature is such that it is possible to record a predetermined indentation 17 by pressing the marking protrusion 13b against the molar part by the patient's occlusal force, and the hardness is such that no excessive deformation occurs. Since the molars 15a are made of brazing material, there is no need to heat and soften the molar portions 15a when performing bite registration. Further, since tapping can be performed repeatedly, a suitable impression can be formed and an appropriate occlusal position can be easily marked. Therefore, by using an occlusion recording device for complete dentures with a simple structure, it is possible to record the relationship between the upper and lower jaws with simple and reproducible operations.

This occlusion recording device 10 for complete dentures has a height difference greater than the thickness of the base plate 13c between the molar part 15b to which the bite rim 13 is fixed and the front tooth part 14b, and the tops of the plurality of marking protrusions 13b are It is formed to protrude more than the front tooth portion 14b. Therefore, when performing occlusal registration, by bringing the pair of wax ridges 12a and 12b close to each other, the surface of the base part 13c of the bite rim 13 does not come into contact with the molar part 15a of the other wax ridge 12a, and a plurality of marking protrusions can be formed. The top of the portion 13b and the molar tooth portion 15a of the other wax ridge 12a can be securely pressed together, and a sufficient impression can be formed by the top of the marking protrusion 13b.

Further, in this occlusion recording device 10 for complete dentures, the locking protrusion 13d of the bite rim 13 is provided at a position on the axis L1 on the back surface of the base plate part 13c, and the marking protrusion 13b is provided on the coaxial line on the front surface of the base plate part 13c. They are provided so as to protrude in a line above L1. Therefore, by embedding and fixing the locking protrusion 13d of the bite rim 13 in the molar tooth portion 15b of one wax ridge 12b, a plurality of markings can be made at positions where it can stably contact the molar tooth portion 15a of the other wax ridge 12a. The protrusion 13b can be arranged, and the positional relationship between the brazing rod and the bit rim can be easily adjusted.

Furthermore, the occlusal registration device 10 for complete dentures of this embodiment has a rotating body shape in which the plurality of marking protrusions 13b are centered on an axis perpendicular to the surface of the base plate part 13c. Therefore, each of the plurality of marking protrusions 13b has no directionality, and when repeatedly tapping, each marking protrusion 13b is guided by each formed impression 17, and an impression is formed in an inappropriate position. can be prevented.

Note that each of the embodiments described above can be modified as appropriate within the scope of the present invention.
For example, although an example of the bit rim 13 has been shown above, the shape, material, number, etc. of the marking protrusion 13b, base plate 13c, and locking protrusion 13c of the bit rim are not limited at all and can be changed as appropriate. In that case, since it will be used in the oral cavity, it is best to consider convenience and select a material that can be disinfected and sterilized.

10 Occlusion recording device for complete dentures 11a Upper jaw part 11b Lower jaw parts 12a, 12b Wax ridge 13 Bite rim 13a Fixing part 13b Marking protrusion 13c Base part 13d Locking protrusion 14a, 14b Anterior tooth part 15a, 15b Molar tooth part 17 Indentations L1, L2 shaft

Claims (5)

A total system comprising a pair of upper and lower wax ridges that are attached to the upper and lower jaw parts so as to face each other, and a pair of left and right bite rims that are fixed to the tops of the left and right sides of one of the upper and lower wax ridges. In the occlusal registration device for dentures,
The pair of upper and lower wax ridges has a substantially U-shape in plan view including a front tooth portion and a molar tooth portion,
The pair of left and right bite rims have a fixing part that is fixed to the molar tooth part of the one wax ridge, and a plurality of marking protrusions that protrude from the fixing part toward the other wax ridge,
The fixing part of the bite rim includes a base plate whose back surface is in close contact with the top of the molar tooth part, and a locking protrusion provided on the back surface of the base plate and embedded in the molar tooth part,
The plurality of marking protrusions are each formed in the shape of a rotating body around an axis perpendicular to the surface of the substrate part, and have a hemispherical shape or a spherical crown shape at the top, and are spaced apart from each other on the surface of the substrate part. Protruding at the same height with a gap,
The locking protrusion is provided coaxially with the marking protrusion,
The pair of wax dams are made of a brazing material that can form an indentation by occlusal force without being softened by heating,
An occlusion recording device for complete dentures, characterized in that the indentation is formed on the wax ridge by repeatedly tapping the molar portion with the top of the marking protrusion. The one wax ridge has a height difference greater than the thickness of the base plate between the molar tooth portion to which the bite rim is fixed and the front tooth portion, and the tops of the plurality of marking protrusions are larger than the front tooth portion. The bite registration device for complete dentures according to claim 1, characterized in that the device is protruding. The locking protrusion of the bite rim is provided at a position on the axial line on the back surface of the substrate part, and the plurality of marking protrusions are provided in a line in a protruding manner at positions on the axial line on the front surface of the board part. The occlusal registration device for complete dentures according to claim 1 or 2. The brazing material forming the pair of upper and lower wax banks is made of soft or hard dental paraffin wax in accordance with JIS-T6502, and can form the indentation with a depth of 1.0 mm or more by the bite force of tapping. The occlusal registration device for complete dentures according to any one of claims 1 to 3 , characterized in that: 5. A method for performing bite registration using the bite registration device for complete dentures according to any one of claims 1 to 4 , wherein the pair of wax ridges are attached to the upper and lower jaw parts of the patient, and one The bite rim is fixed to the left and right molar teeth of the wax ridge, and by tapping at room temperature, the indentation by the plurality of marking protrusions is formed on the left and right molars of the other wax ridge, and the whole is formed. An occlusal registration method characterized by performing occlusal registration for dentures.

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