CN120732561A - A upper jaw expands and encircles back holder for upper jaw expands bow maintenance period - Google Patents
A upper jaw expands and encircles back holder for upper jaw expands bow maintenance periodInfo
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- CN120732561A CN120732561A CN202511254689.5A CN202511254689A CN120732561A CN 120732561 A CN120732561 A CN 120732561A CN 202511254689 A CN202511254689 A CN 202511254689A CN 120732561 A CN120732561 A CN 120732561A
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- maxillary
- expansion
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- molar
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Abstract
本发明涉及口腔器械技术领域，具体是一种用于上颌扩弓维持期的上颌扩弓后保持器，包括第一恒磨牙带环、腭弓、树脂基托、牙性回缩牵引钩、舌侧牵引扣、横腭杆、颊面管及腭珠。腭弓与上颌腭部形态对应，贴合腭部提供刚性支撑维持第一磨牙宽度。横腭杆用于维持第一磨牙宽度并通过舌肌控制第一磨牙的高度。树脂基托为一对形状大小相同的树脂方块，牙性回缩牵引钩左右各二，位于树脂基托内，本发明保持器的临床适用范围广，适用于青少年上颌横向发育不足行扩弓治疗后的的患者。本发明对于替牙列期或恒牙列早期患者，在完成上颌扩弓后的患者中可实现良好的扩弓效果保持，同时纠正扩弓过程中产生的牙性代偿效应。
The present invention relates to the technical field of oral appliances, and specifically to a maxillary expansion retainer for the maintenance period of maxillary expansion, comprising a first permanent molar band, a palatal arch, a resin base, a tooth retraction hook, a lingual traction buckle, a transverse palatal rod, a buccal tube and a palatal bead. The palatal arch corresponds to the shape of the maxillary palate and fits the palate to provide rigid support to maintain the width of the first molar. The transverse palatal rod is used to maintain the width of the first molar and control the height of the first molar through the tongue muscle. The resin base is a pair of resin blocks of the same shape and size, with two tooth retraction hooks on each side, located in the resin base. The retainer of the present invention has a wide range of clinical applications and is suitable for adolescent patients who have undergone expansion treatment due to insufficient transverse maxillary development. The present invention can achieve good expansion effect maintenance in patients in the replacement dentition period or the early permanent dentition period after completing maxillary expansion, while correcting the tooth compensatory effect produced during the expansion process.
Description
Technical Field
The invention relates to the technical field of oral appliances, in particular to an orthodontic fixing retainer which is used for keeping an osseous arch expanding effect after maxillary arch expanding of a patient and simultaneously has the functions of eliminating premolars and breast molar buccalization compensation.
Background
The invention relates to the technical field of oral appliances, in particular to an orthodontic fixing retainer which is used for keeping an osseous arch expanding effect after maxillary arch expanding of a patient and simultaneously has the functions of eliminating premolars and breast molar buccalization compensation.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, an object of the present invention is to provide a fixing retainer suitable for a retaining stage after completion of a maxillary arch expansion, which has a main function of stably maintaining a bone effect obtained by an arch expansion treatment, and simultaneously adding two inward and downward dentures retracting traction hooks on both resin bases for pulling and depressing a bucally displaced deciduous molar or anterior molar to restore good occlusal contact, overcoming many of the drawbacks existing in the prior art, and improving the correction efficiency and effectiveness.
In order to achieve the above purpose, the technical scheme of the invention is as follows:
a maxillary expansion post-retainer for a maxillary expansion maintaining period comprises a first constant grinding dental belt ring 1, a palate arch 2, a resin base 3, a tooth retraction traction hook 4, a lingual traction buckle 5, a palate bar 6 and a buccal tube 7:
The appliance takes the palate middle seam in the hard palate as a midline to be bilaterally symmetrical, so that the retention force is ensured to be uniformly distributed on the left side and the right side;
The first constant molar belt ring 1 is of an annular metal structure, is adhered to the first constant molar and tightly surrounds the first constant molar full dental crown, is adhered to the buccal surface, the lingual surface, the mesial surface and the distal surface of the first constant molar belt ring, and is used for welding a buccal tube 7 on the buccal side and a palate arch 2 on the palate side of the first constant molar belt ring 1;
The shape of the palate arch 2 corresponds to the shape of the maxillary palate part, is attached to the palate part, and the tail ends of the two ends of the palate arch 2 are welded with the first constant molar belt ring 1 on the palate side;
The resin base support 3 is a pair of resin squares with the same shape and size, is positioned at the palate parts of the deciduous molar areas or the premolars area at two sides and wraps the palate arch, and the palate side surface of the resin base support 3 is provided with a contact surface consistent with the shape of the side wall of the palate;
The two tooth retraction traction hooks 4 are respectively arranged on each resin base support 3, the bottoms of the tooth retraction traction hooks are U-shaped, the tail ends of the tooth retraction traction hooks are welded on the archwire of the palate arch 2 and are positioned in corresponding deciduous molar or premolaring areas on the resin base supports 3, the U-shaped open ends of the traction hooks deviate from the corresponding teeth, and the tooth retraction traction hooks 4 are used for hooking rubber chains or elastic wires so as to retract and depress the deciduous molar or premolaring teeth which are subjected to buccal displacement due to arch expansion;
the lingual traction buckles 5 are adhered to the palate side of the maxillary molar or the premolars which need to be moved in the palate direction, the corresponding lingual traction buckles 5 are connected with the dentate retraction traction hooks 4 by rubber chains or elastic wires 8, and the lingual traction buckles 5 are used for hooking the rubber chains or the elastic wires 8 so as to retract and depress the molar or the premolars which are moved in the cheek direction due to the expansion of the arch;
The two ends of the palate-traversing rod 6 are respectively welded on the palate side surfaces of the first constant molar belt ring 1 at the left side and the right side, and the palate-traversing rod 6 is used for limiting the lingual inclination of the first constant molar, inhibiting the molar extension and maintaining the width and the vertical position of the first constant molar;
The buccal tube 7 is welded to the midpoint of the clinical crown of the buccal surface of the first permanent molar, and the axis of the tube cavity is parallel to the occlusal plane and is used for fixing an orthodontic archwire during the subsequent fixing correction.
Preferably, the device also comprises a palate bead 9, wherein the palate bead is a sphere with a hollow channel inside, the hard palate bead is fixed at a position 1-2cm behind a central incisor and has a diameter of 5-8mm, the palate bead 9 is used for guiding the tongue body to lift up to the palate top through tactile stimulation, so that the lingual tip naturally props against the palate bead and the rear palate part of the upper incisor and the lingual back is attached to the front part of the hard palate, thereby promoting and maintaining a correct lingual rest position, maintaining internal and external muscle balance of the posterior teeth and increasing stability after expansion of the arch.
Preferably, the palate arch 2 is made of stainless steel wires with the diameter of 1.0mm, the palate arch is bent into an integrated isosceles triangle annular bracket in the central seam area of the hard palate, the bottom edge of the triangle faces horizontally to the front tooth direction, the top angle faces to the rear palate direction, and the center of the bottom edge penetrates into a hollow pipeline of the palate bead 9 to realize locking.
Preferably, the resin base 3 has a thickness of 3-4mm, is hard dental resin, and is kept close to the side wall of the palate.
Preferably, the dental retraction traction hook 4 is bent by stainless steel round wires with the diameter of 0.6-0.7mm, the tail end of the dental retraction traction hook is welded on the palate arch, and the U-shaped opening end of the dental retraction traction hook faces away from the corresponding teeth.
Preferably, the lingual traction clasp 5 is a round lingual clasp or a lingual clasp with wings with a diameter of 2mm, and is made of stainless steel material and is adhered to the palate side of the deciduous molars or premolars which need to move in the palate direction.
Preferably, the first permanent molar belt ring 1 is a preformed belt ring or a cast belt ring.
The working principle of the invention is as follows:
the first constant molar band ring is adhered and fixed on the anchorage teeth, and the jaw arch and the resin base support are attached to the jaw to provide support, and sufficient transverse pressure is continuously applied to maintain the osseous effect of the maxillary arch expansion. The lingual side buckles of the maxillary deciduous molars or the premolars are pulled by using rubber bands between the lingual side buckles of the maxillary deciduous molars or the premolars and the dentate retraction traction hooks on the corresponding resin base, so that the cheek lingual reset of the maxillary deciduous molars or the premolars with excessive cheek side inclination is realized, a depression effect is generated, and meanwhile, the transverse palate rod is used for maintaining the vertical position of the first constant molars, so that an ideal molar relation is established in three dimensions. In addition, the tongue can be guided to be positioned through the palate bead, so that lingual muscles are raised, the dental arch form is maintained, the balance of internal and external muscle force of the rear teeth is maintained, and the stability after the arch expansion is improved.
The beneficial effects of the invention are as follows:
1. the strength of the palate arch and the resin base support is beneficial to the maintenance of the width of the first molar and the maintenance of the osseous arch expansion effect;
2. Simultaneously palate movement and depression of the buccally displaced deciduous or premolars during retention, rapidly removing the running-in disturbance and eliminating the adverse effects of the buccal posterior teeth;
3. maintaining the vertical position of the first constant molar using a palate bar (TPA) to reduce accidental offset during depression of the deciduous or premolars;
4. the correction of the anterior teeth dislocation deformity can be completed while the arch expansion effect is maintained by combining with a 2X4 local fixing correction technology, so that the correction efficiency is improved;
5. A palate bead device can be selected to lift the lingual muscle;
6. the structure design is reasonable, the foreign body sensation is small, and the oral cavity is convenient to fix;
7. the device is simple and easy to manufacture.
Drawings
Fig. 1A and 1B are schematic views of an orthodontic retainer held after maxillary expansion of example 1, wherein fig. 1A is a occlusal view and fig. 1B is a rear side view;
fig. 2A and 2B are views showing an orthodontic retainer held after the maxillary expansion of example 2, wherein fig. 2A is a occlusal view and fig. 2B is a rear side view;
wherein, 1-first permanent molar belt ring, 2-palate arch, 3-resin base support, 4-tooth retraction traction hook, 5-lingual traction buckle, 6-palate bar, 7-buccal tube, 8-rubber chain or elastic thread, 9-palate bead.
Detailed Description
Other advantages and effects of the present invention will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present invention with reference to specific examples. The invention may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present invention.
The following describes in detail the preferred embodiments of the present invention with reference to fig. 1 and 2, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and thus the scope of the present invention is more clearly and clearly defined.
Example 1
As shown in fig. 1A and 1B, the present embodiment provides a rear maxillary arch expansion holder for a maxillary arch expansion maintenance period, which comprises a first constant molar belt loop 1, a palate arch2, a resin base 3, a dental retraction traction hook 4, a lingual traction buckle 5, a palate bar 6 and a buccal tube 7:
The appliance takes the palate middle seam in the hard palate as a midline to be bilaterally symmetrical, so that the retention force is ensured to be uniformly distributed on the left side and the right side;
The first constant molar belt ring 1 is of an annular metal structure, is adhered to the first constant molar and tightly surrounds the first constant molar full dental crown, is adhered to the buccal surface, the lingual surface, the mesial surface and the distal surface, and is welded with a buccal tube 7 on the buccal side and a palate arch 2 on the palate side;
The shape of the palate arch 2 corresponds to the shape of the maxillary palate part, is attached to the palate part, and the tail ends of the two ends of the palate arch 2 are welded with the first constant molar belt ring 1 on the palate side;
The resin base support 3 is a pair of resin squares with the same shape and size, is positioned at the palate parts of the deciduous molar areas or the premolars areas at the two sides of the patient and wraps the palate arch, and the palate side surface of the resin base support 3 is provided with a contact surface consistent with the shape of the palate side wall of the patient;
The two tooth retraction traction hooks 4 are respectively arranged on each resin base support 3, the bottoms of the tooth retraction traction hooks are U-shaped, the tail ends of the tooth retraction traction hooks are welded on the archwire of the palate arch 2 and are positioned in corresponding deciduous molar or premolaring areas on the resin base supports 3, the U-shaped open ends of the traction hooks deviate from the corresponding teeth, and the tooth retraction traction hooks 4 are used for hooking rubber chains or elastic wires so as to retract and depress the deciduous molar or premolaring teeth which are subjected to buccal displacement due to arch expansion;
the lingual traction buckles 5 are adhered to the palate side of the maxillary molar or the premolars which need to be moved in the palate direction, the corresponding lingual traction buckles 5 are connected with the dentate retraction traction hooks 4 by rubber chains or elastic wires 8, and the lingual traction buckles 5 are used for hooking the rubber chains or the elastic wires 8 so as to retract and depress the molar or the premolars which are moved in the cheek direction due to the expansion of the arch;
The two ends of the palate-traversing rod 6 are respectively welded on the palate side surfaces of the first constant molar belt ring 1 at the left side and the right side, and the palate-traversing rod 6 is used for limiting the lingual inclination of the first constant molar, inhibiting the molar extension and maintaining the width and the vertical position of the first constant molar;
The buccal tube 7 is welded to the midpoint of the clinical crown of the buccal surface of the first permanent molar, and the axis of the tube cavity is parallel to the occlusal plane and is used for fixing an orthodontic archwire during the subsequent fixing correction.
Preferably, the palate arch 2 is made of stainless steel wires with the diameter of 1.0 mm.
Preferably, the resin base 3 has a thickness of 3-4mm and is hard dental resin, and the resin base is kept close to the side wall of the palate.
Preferably, the dental retraction traction hook 4 is bent by stainless steel round wires with the diameter of 0.6-0.7mm, the tail end of the dental retraction traction hook is welded on the palate arch, and the U-shaped opening end of the dental retraction traction hook is away from the corresponding teeth.
Preferably, the lingual traction buckle 5 is a round lingual buckle or a lingual buckle with wings with the diameter of 2mm, and is made of stainless steel material and is adhered to the palate side of the deciduous teeth or the premolars which need to move in the palate direction.
Preferably, the first constant molar band 1 is a preformed band or a cast band.
The device can be worn in the mouth of a patient after being manufactured on a model by firstly acquiring a tooth model. And 3D printing technology can be adopted, the teeth and intraoral soft tissue data of the patient can be obtained by scanning the inside of the oral cavity, and printing and manufacturing are performed after the design is completed in corresponding software.
When the device is installed, the glass ion cement is coated on the inner sides of the two first constant molar belt rings, and then the device is positioned on the molar teeth for curing. The resin base is closely attached to the mucous membrane of the palate in the deciduous molar region or the premolars region. The lingual traction clasp is cemented to the palate side of the deciduous or premolars with an adhesive. The lingual traction buckle is connected with the dentate retraction traction hook on the resin base support by using a rubber chain or elastic thread, and traction force is applied by the elastic force of the rubber chain or elastic thread to move the cheek ectopic deciduous molar or premolars to the palate side and is properly depressed. The tongue side traction buckle and the tooth retraction traction hook on the resin base support are adopted, so that the rubber chain or the elastic thread can be conveniently placed or taken down, and the regular replacement is convenient.
The retainer has high wearing comfort, high aesthetic degree and good wearing compliance, ensures full play of the correction efficacy and improves the correction efficiency.
Example 2
As shown in fig. 2A and 2B, the present embodiment provides an orthodontic retainer for a maxillary expanded arch for treating a patient with a deficient development of the width of the upper jaw and a mandibular excess.
Example 2 and example 1 are different in that example 2 is improved on the basis of example 1, a palate bead 9 is additionally arranged, the palate bead is a sphere with a hollow channel inside and is fixed at a hard palate area 1-2cm behind a central incisor, the diameter is 5-8mm, the palate bead 9 is used for guiding a tongue body to lift to a palate top through tactile stimulation, so that the tip of the tongue naturally props against the palate bead and the palate behind the upper incisor, and the back of the tongue is attached to the front of the hard palate, thereby promoting and maintaining a correct rest position of the tongue, maintaining internal and external muscle balance of the posterior teeth, and increasing stability after expansion.
The palate arch 2 is bent into an integrated isosceles triangle annular bracket in the hard palate central seam area, the bottom edge of the triangle horizontally faces the front teeth, the top angle faces the back palate direction, and the center of the bottom edge penetrates into a hollow pipeline of the palate bead to realize locking. During use, the palate bead 9 positions the tongue and instructs the patient to practice the tongue tip to lick against the palate bead 9 and roll.
The retainer can maintain the maxillary arch expansion effect and simultaneously pull the ectopic deciduous molar or the premolars, and can also exercise the lingual muscle function, so that the lingual body is actively positioned at the correct position, and the bad lingual habit of a patient is corrected.
Comparative example
The structure of the Hawley retainer in the prior art is mainly different from that of the invention in that in the comparative example, the structure is formed by a hyperbolic lip bow, a resin base bracket and a retention snap ring by adopting a detachable design. Comparative example resin base support area is larger and coverage generally includes portions of the gums of the full dentition, anterior and lateral portions of the hard palate. The comparison example is characterized in that the snap rings of the rear teeth on two sides are embedded into the undercut region to generate mechanical retention, and the cooperative retention is formed by combining the adsorption force and friction force of the base support and the tissue surface and the auxiliary fixation of the labial arch of the front teeth. There is no first constant grinding belt ring, palate bar and traction device.
The main defects are as follows:
1. the retention snap ring relies on the rear teeth on two sides to realize retention, and the snap ring position is easy to interfere with occlusion.
Hawley retainer base is not effective in controlling tooth movement in the vertical direction. In cases where the expansion of the arch is accompanied by deep occlusion or open occlusion, it is difficult to suppress tooth elongation or depression.
Hawley retainers have no traction means, can only maintain the arch expanding effect, and cannot correct the shifted teeth.
The Hawley retainer resin base support has larger volume, aggravates foreign body sensation in the oral cavity, and has obvious exposure of the labial arch and poor aesthetic property.
Hawley's retainer is a removable retainer with high patient compliance requirements.
Performance testing
After the maxillary arch expansion is carried out on 5 patients with the maxillary lateral development deficiency in the tooth replacement period or the early permanent dentition, the maxillary arch expansion post-retainer and the Hawley retainer of the embodiment 1 of the invention are respectively worn in 2 parts, and the patients are subjected to wearing comfort degree grading (grading interval is 0-10 parts, 0-2 parts are very intolerable, 2-4 parts are intolerable, 4-6 parts are free from obvious discomfort, 6-8 parts are comfortable, 8-10 parts are very comfortable, and wearing aesthetic degree grading (grading interval is 0-10 parts, 0-2 parts are very unattractive, 2-4 parts are unattractive, 4-6 parts are acceptable, 6-8 parts are attractive, and 8-10 parts are very attractive) during treatment. Performing curative effect evaluation after wearing for 6 months, wherein the curative effect index is embodied in a difference form, namely, the corresponding value measured after 6 months minus the corresponding value measured immediately after the end of the bow expansion treatment is maintained, and the curative effect evaluation items are as follows:
1. Transverse index
(1) Dental arch extension-the width (mm) between the maxillary deciduous molars or premolars was measured using a digital dentition model.
(2) Bone expansion amount the maxillary base width (mm) was measured using CBCT.
(3) The molar cheek inclination angle is measured by CBCT, namely the inclined angle between the long axis of the CBCT coronal facial tooth and the palate plane.
2. Vertical index
(1) The molar vertical position is measured by measuring the distance (U4/5/6-PP) (mm) from the facial point of the deciduous or premolars and the first permanent molar to the plane of the palate using a lateral plate.
(2) Mandibular plane angle (MP-SN) (°) is measured using a lateral plate.
3. Results statistics as shown in table 1, it can be seen that the holder of the present invention is significantly superior to Hawley holders in terms of wearing comfort, wearing aesthetics and efficacy for the treatment of this type of patient.
TABLE 1
For 5 patients with transverse upper jaw development and overjaw development, the retainer and the traditional retainer according to the embodiment 2 of the invention are respectively worn in two groups, the patients are subjected to wearing comfort degree grading (the grading interval is 0-10 points, 0-2 points are very intolerable, 2-4 points are intolerable, 4-6 points are free of obvious discomfort, 6-8 points are comfortable, 8-10 points are very comfortable), wearing aesthetic degree grading (the grading interval is 0-10 points, 0-2 points are very unaesthetic, 2-4 points are unaesthetic, 4-6 points are acceptable, 6-8 points are attractive, 8-10 points are very attractive), and the wearing compliance of the patients is evaluated (the actual wearing time of the patients is calculated to be the percentage of the doctor's advice wearing time, and the wearing compliance is higher).
Performing curative effect evaluation after wearing for 6 months, wherein the curative effect index is embodied in a difference form, namely, the corresponding value measured after 6 months minus the corresponding value measured immediately after the end of the bow expansion treatment is maintained, and the curative effect evaluation items are as follows:
1. Transverse index
(1) Dental arch extension-the width (mm) between the upper and lower teeth of the breast or premolars is measured using a digital dentition model.
(2) Bone expansion amount the maxillary and mandibular base width (mm) was measured using CBCT.
(3) The molar cheek inclination angle is measured by CBCT, namely the inclined angle between the long axis of the CBCT coronal facial tooth and the palate plane.
2. Vertical index
(1) The molar vertical position is measured by measuring the distance (U4/5/6-PP) (mm) from the facial point of the deciduous or premolars and the first permanent molar to the plane of the palate using a lateral plate.
(2) Mandibular plane angle (MP-SN) (°) is measured using a lateral plate.
3 Statistics of scoring results as shown in table 2, it can be seen that the holder of the present invention is significantly superior to Hawley holders in terms of wearing comfort, wearing aesthetics and efficacy for treatment of this type of patient.
TABLE 2
The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims of this invention, which are within the skill of those skilled in the art, can be made without departing from the spirit and scope of the invention disclosed herein.
The "dental engagement" herein is an oral medical professional vocabulary, english is occlusion, dental engagement is the left and right parts of a word, and the word cannot be found in a common word stock, so the word is separately written as "dental engagement".
The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims of this invention, which are within the skill of those skilled in the art, can be made without departing from the spirit and scope of the invention disclosed herein.
Claims (7)
1. The maxillary expansion post-retainer for the maxillary expansion maintenance period is characterized by comprising a first constant grinding tooth belt ring (1), a palate arch (2), a resin base bracket (3), a tooth retraction traction hook (4), a lingual traction buckle (5), a transverse palate rod (6) and a buccal tube (7):
The appliance takes the palatine center seam in the hard palate center as the center line to be bilaterally symmetrical;
The first constant grinding tooth belt ring (1) is of an annular metal structure, is bonded with the first constant grinding tooth and tightly surrounds the first constant grinding tooth full crown, is bonded with the buccal surface, the lingual surface, the mesial surface and the distal surface of the first constant grinding tooth belt ring, and is used for welding a buccal tube (7) on the buccal side and a palate arch (2) on the palate side of the first constant grinding tooth belt ring (1);
The shape of the palate arch (2) corresponds to the shape of the maxillary palate part, is attached to the palate part, and the tail ends of the two ends of the palate arch are welded with the first constant molar belt ring (1) on the palate side, wherein the palate arch (2) is used for forming a rigid support to maintain the width of the first molar of the maxillary;
The resin base support (3) is a pair of resin squares with the same shape and size, is positioned at the palate parts of the deciduous molar areas or the premolars area at two sides and wraps the palate arch, and the palate side surface of the resin base support is provided with a contact surface consistent with the shape of the side wall of the palate;
The U-shaped opening ends of the traction hooks deviate from the corresponding teeth, and the traction hooks (4) are used for hooking rubber chains or elastic wires so as to retract and depress the breast molars or premolars which are subjected to buccal displacement due to expansion;
The lingual traction buckles (5) are adhered to the palate side of the maxillary molar or the premolars which need to be moved in the palate direction, the lingual traction buckles (5) and the dentate retraction traction hooks (4) are connected by rubber chains or elastic wires (8), and the lingual traction buckles (5) are used for hooking the rubber chains or the elastic wires (8) so as to retract and depress the molar or the premolars which are subjected to buccal displacement due to the expansion of the arches;
The two ends of the palate-traversing rod (6) are respectively welded on the palate side surfaces of the first constant molar belt rings (1) at the left side and the right side, and the palate-traversing rod (6) is used for limiting the lingual inclination of the cheeks of the first constant molar and inhibiting the extension of the molar and maintaining the width and the vertical position of the first constant molar;
The buccal tube (7) is welded at the midpoint of the clinical crown of the buccal surface of the first permanent molar, and the axis of the tube cavity is parallel to the occlusal plane and is used for fixing an orthodontic arch wire during the subsequent fixing correction.
2. The maxillary arch expansion posterior holder for the maxillary arch expansion maintenance period according to claim 1, further comprising a palate bead (9), wherein the palate bead (9) is a sphere with a hollow channel inside and is fixed at a hard palate area 1-2cm behind a central incisor and has a diameter of 5-8mm, the palate bead (9) is used for guiding the tongue body to lift up to the palate top through tactile stimulation so that the lingual tip naturally props against the palate bead and the palate behind the upper incisor and the lingual back is attached to the front of the hard palate, thereby promoting and maintaining a correct lingual rest position posture, maintaining internal and external muscle balance of the posterior teeth and increasing stability after arch expansion.
3. The maxillary expansion rear holder for the maxillary expansion maintaining period according to claim 2, wherein the maxillary expansion rear holder is characterized in that the maxillary expansion (2) is made of stainless steel wires with the diameter of 1.0mm, the maxillary expansion is bent into an integrated isosceles triangle annular bracket in a central seam area of a hard palate, the bottom edge of the triangle faces horizontally to the front tooth direction, the top angle faces to the rear palate direction, and the center of the bottom edge penetrates into a hollow pipeline of a palate bead (9) to realize locking.
4. A posterior maxillary arch expansion holder according to claim 1, wherein the resin base (3) has a thickness of 3-4mm, is a hard dental resin, and is held in close contact with the side wall of the palate.
5. The maxillary arch expansion post-retainer for the maxillary arch expansion maintaining period according to claim 1, wherein the dental retraction traction hook (4) is bent by a stainless steel round wire with the diameter of 0.6-0.7mm, the tail end is welded on the maxillary arch, and the U-shaped opening end faces away from the corresponding teeth.
6. A posterior maxillary arch expansion retainer for a maxillary arch expansion maintaining period according to claim 1, wherein the lingual traction buckle (5) is a round lingual buckle or a lingual buckle with a diameter of 2mm, and is made of stainless steel and is adhered to the palate side of the deciduous molars or premolars which need palate movement.
7. A post-maxillary arch expansion holder according to claim 1, wherein the first constant molar band (1) is a preformed band or a cast band.
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| CN202511254689.5A CN120732561B (en) | 2025-09-04 | 2025-09-04 | A upper jaw expands and encircles back holder for upper jaw expands bow maintenance period |
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| CN202511254689.5A CN120732561B (en) | 2025-09-04 | 2025-09-04 | A upper jaw expands and encircles back holder for upper jaw expands bow maintenance period |
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|---|---|---|---|---|
| RU2033109C1 (en) * | 1991-11-04 | 1995-04-20 | Майчуб Игорь Юрьевич | Bioretractor for treatment of distal deep occlusion |
| GB0028969D0 (en) * | 1996-07-27 | 2001-01-10 | Williams Michael O | Orthodontic device |
| CN105596097A (en) * | 2016-02-24 | 2016-05-25 | 苏州卫生职业技术学院 | Pressed-film-type back tooth locked occlusion correcting device and preparation method thereof |
| CN206950236U (en) * | 2016-12-22 | 2018-02-02 | 惠州市口腔医院有限公司 | A kind of appliance |
| JP2020018401A (en) * | 2018-07-30 | 2020-02-06 | 株式会社デンタルアシスト | Orthodontic appliance |
| CN211560428U (en) * | 2019-12-30 | 2020-09-25 | 佛山市佛冠义齿有限公司 | Comfortable type circular curve expands bow ware |
| CN113413223A (en) * | 2021-06-09 | 2021-09-21 | 浙江大学 | Functional appliance capable of dynamically monitoring correction force value based on flexible electronic system and preparation method thereof |
| RU2758121C1 (en) * | 2021-02-16 | 2021-10-26 | Общество с ограниченной ответственностью «Ортосмайл» | Orthodontic appliance design |
| CN217448052U (en) * | 2022-06-01 | 2022-09-20 | 西安交通大学口腔医院 | Impacted tooth traction hook and adjustable multiple impacted tooth traction devices |
| CN115770118A (en) * | 2022-11-14 | 2023-03-10 | 四川大学 | Anshi III-class functional appliance suitable for high-angle patients and manufacturing method |
| JP2023103133A (en) * | 2022-01-13 | 2023-07-26 | ＳｈｅｅｐＭｅｄｉｃａｌ株式会社 | Oral wearable device |
| CN120531509A (en) * | 2025-07-28 | 2025-08-26 | 四川大学 | Maxillary fixed arch expansion appliance |
-
2025
- 2025-09-04 CN CN202511254689.5A patent/CN120732561B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2033109C1 (en) * | 1991-11-04 | 1995-04-20 | Майчуб Игорь Юрьевич | Bioretractor for treatment of distal deep occlusion |
| GB0028969D0 (en) * | 1996-07-27 | 2001-01-10 | Williams Michael O | Orthodontic device |
| CN105596097A (en) * | 2016-02-24 | 2016-05-25 | 苏州卫生职业技术学院 | Pressed-film-type back tooth locked occlusion correcting device and preparation method thereof |
| CN206950236U (en) * | 2016-12-22 | 2018-02-02 | 惠州市口腔医院有限公司 | A kind of appliance |
| JP2020018401A (en) * | 2018-07-30 | 2020-02-06 | 株式会社デンタルアシスト | Orthodontic appliance |
| CN211560428U (en) * | 2019-12-30 | 2020-09-25 | 佛山市佛冠义齿有限公司 | Comfortable type circular curve expands bow ware |
| RU2758121C1 (en) * | 2021-02-16 | 2021-10-26 | Общество с ограниченной ответственностью «Ортосмайл» | Orthodontic appliance design |
| CN113413223A (en) * | 2021-06-09 | 2021-09-21 | 浙江大学 | Functional appliance capable of dynamically monitoring correction force value based on flexible electronic system and preparation method thereof |
| JP2023103133A (en) * | 2022-01-13 | 2023-07-26 | ＳｈｅｅｐＭｅｄｉｃａｌ株式会社 | Oral wearable device |
| CN217448052U (en) * | 2022-06-01 | 2022-09-20 | 西安交通大学口腔医院 | Impacted tooth traction hook and adjustable multiple impacted tooth traction devices |
| CN115770118A (en) * | 2022-11-14 | 2023-03-10 | 四川大学 | Anshi III-class functional appliance suitable for high-angle patients and manufacturing method |
| CN120531509A (en) * | 2025-07-28 | 2025-08-26 | 四川大学 | Maxillary fixed arch expansion appliance |
Also Published As
| Publication number | Publication date |
|---|---|
| CN120732561B (en) | 2025-11-21 |
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