Tooth replacement stage occlusal position maintaining retainer

Abstract

The invention belongs to the technical field of orthodontics, and discloses a tooth replacement stage occlusal position maintaining retainer which comprises a base plate arranged on the front portion of the hard palate. The upper jaw first molar occlusal pads are respectively arranged on two sides of the base plate, are respectively positioned on back tooth retreat positions on two sides of the upper jaw, and are connected with back teeth through retention devices; and an occlusal position maintaining part is formed in the upper and lower incisor regions, is connected with the base plate, and is matched with the upper jaw first molar occlusal pad to stabilize the lower jaw of the patient. The device is arranged on the upper jaw palate mucosa, the occlusal pad is formed on the occlusal surface covered by the first molar of the upper jaw, and the occlusal position maintaining part is formed in the upper and lower incisor regions, so that the effect of leading the lower jaw in the earlier stage can be stabilized, the replacement process of the deciduous molar in the premolar region is not influenced, and the transverse development of the upper and lower dental arches is not limited.

Description

Technical Field

[0001] The present invention relates to an occlusal position maintaining retainer during the tooth replacement period, belonging to the technical field of oral orthodontics. Background Art

[0002] Patients with Angle Class II, Division 1 malocclusion often experience a degree of skeletal imbalance. The goal of two-stage orthodontic treatment is to leverage the patient's adolescent growth potential to modify jaw growth and maximize the improvement of three-dimensional jaw imbalances. The appliances used in the first-stage treatment are typically functional appliances (such as bioregulators, activators, biocclusal splints, etc.) and extraoral arch caps. The optimal time for treatment is before or during the peak of puberty (i.e., in the late stage of edentulism or early stage of permanent dentition).

[0003] Currently, most braces used in primary treatment are functional appliances, which present varying degrees of problems. For example, they can be difficult to maintain occlusal stability, interfere with the replacement of lateral deciduous molars, lead to failure of mandibular advancement, and waste significant medical resources. Therefore, there is an urgent need to develop a retainer for mandibular advancement during the transitional period, maintaining jaw position and dentition without affecting lateral tooth replacement while maintaining mandibular advancement. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a retainer for maintaining occlusal position during the tooth replacement period, which solves the problem that the current retainer affects the replacement of the lateral tooth group when maintaining the jaw position and dentition and maintaining the mandibular leading position.

[0005] The technical problem to be solved by the present invention is achieved by adopting the following technical solutions: a retainer for maintaining the occlusal position during the period of tooth replacement, comprising

[0006] A base, the base being arranged in front of the hard palate;

[0007] The maxillary first molar occlusal pad is respectively arranged on both sides of the base and is located at the posterior position of the posterior teeth on both sides of the maxillary;

[0008] The invention also includes forming an occlusal maintenance portion in the upper and lower incisor areas, wherein the occlusal maintenance portion is connected to the base.

[0009] The occlusal position maintaining portion cooperates with the maxillary first molar occlusal pad to stabilize the position of the patient's mandible.

[0010] Preferably, the retainer for maintaining occlusal position during the replacement period is of an integrated structure.

[0011] Preferably, the number of incisor models of the occlusion maintaining part is set to 2-4.

[0012] Preferably, the occlusal maintaining portion covers the upper incisors and the lower incisors.

[0013] Preferably, the retainer for maintaining occlusal position during the replacement period comprises a self-curing resin.

[0014] Preferably, the method for preparing the retainer for maintaining occlusion during the transitional dentition period is as follows: comprising the following steps:

[0015] 1) Make two dental models based on the oral dental scan model;

[0016] 2) Perform bimaxillary dentition lamination on a set of dental models to produce a bimaxillary separated transparent lamination retainer;

[0017] 3) Another dental model is mounted on a simple articulator using the doctor's occlusal relationship;

[0018] 4) Wearing the transparent laminated retainer to the dental arch model on a simple dental frame, and sealing the edges of the retainer and the dental arch model with wax;

[0019] 5) Filling the 2-2 area of ​​the upper and lower anterior teeth with a transparent self-curing resin, allowing the transparent pressed-film retainer to fully fuse and adhere to the transparent self-curing resin to form the occlusal maintaining portion; filling the maxillary 6 occlusal area with a self-curing resin to form an occlusal pad with the maxillary first molar;

[0020] 6) placing the bonded transparent pressed film holder in a pressure polymerization machine for molding;

[0021] 7) After cooling, the transparent pressed film holder is taken out, polished, and cleaned.

[0022] Preferably, in step 6, during molding, the temperature of the pressure polymerization machine is set to 40° C. to 46° C., and the pressure is set to 0.35 MPa to 0.4 MPa for 20 minutes.

[0023] The beneficial effects of the present invention are:

[0024] (1) Through the present invention, the coverage of the retainer for maintaining occlusal position during the tooth replacement period is adjusted to the maxillary palatal mucosa, which can provide a good contact surface, ensure that the retainer is more stable and avoids movement; and have a better bone structure to help guide the retainer.

[0025] (2) Through the present invention, an occlusal pad is formed on the occlusal surface of the maxillary first molar to change the occlusal contact point between the upper and lower teeth, helping to adjust or improve poor occlusion; it can reduce direct contact between teeth and reduce the risk of tooth wear; in orthodontic treatment, it is used to prevent contact between certain teeth and ensure that the teeth that need to be guided are guided to the appropriate position; in some orthodontic stages, the occlusal pad can help maintain the stability of the teeth and prevent tooth movement.

[0026] (3) Through the present invention, by forming an occlusal maintaining part in the upper and lower incisor areas and combining it with the occlusal pad of the maxillary first molar to form an occlusal stabilization device, the contact between the anterior teeth and the molars can be controlled to stabilize the occlusal relationship and adjust the tooth arrangement; the vertical relationship between the upper and lower anterior teeth can be effectively controlled; a relatively stable occlusal contact area can be formed between the upper and lower teeth to prevent poor occlusion; the effect of stabilizing the early leading mandible will not affect the replacement process of the deciduous molars in the premolar area and will not limit the lateral development of the upper and lower dental arches.

[0027] In summary, the occlusal maintenance retainer for the replacement period of the present invention is arranged on the maxillary palatal mucosa, and forms an occlusal pad covering the occlusal surface of the maxillary first molar, and forms an occlusal maintenance part in the upper and lower incisor areas, and together with the occlusal pad at the maxillary first molar forms an occlusal stabilization device, which can stabilize the effect of leading the mandible in the early stage, does not affect the replacement process of the deciduous molars in the premolar area, and will not limit the lateral development of the upper and lower dental arches. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of the present invention.

[0029] Figure 2 It is a schematic diagram of the front structure of the present invention.

[0030] Figure 3 It is a side schematic diagram of the actual object of the present invention.

[0031] In the figure: 1-base, 2-maxillary first molar occlusal pad, 3-occlusal maintenance part. DETAILED DESCRIPTION

[0032] In order to make the technical means, creative features, objectives and effects of the present invention easier to understand, the present invention is further described below in conjunction with specific embodiments.

[0033] Example 1

[0034] like Figure 1-Figure 3 As shown, a retainer for maintaining occlusion in the replacement period includes a base 1, a maxillary first molar occlusal pad 2, and an occlusal maintaining part 3. The base 1 is arranged in the front part of the hard palate; the maxillary first molar occlusal pad 2 is arranged on both sides of the base 1, and the occlusal maintaining part 3 is formed in the upper and lower incisor areas. The occlusal maintaining part 3 is connected to the base 1, and the occlusal maintaining part 3 cooperates with the maxillary first molar occlusal pad 2 to stabilize the patient's lower jaw.

[0035] The base 1 is set on the alveolar ridge of the edentulous area and the related labial, buccal and lingual sides of the alveolar ridge and the hard palate area. The overall shape of the base 1 fits the shape of the patient's hard palate area. The edge of the base 1 can be embedded with the teeth of the upper jaw. The range of the base 1 extends from the central incisor to the first molar. The length of the base 1 does not exceed the crown of the upper jaw.

[0036] The maxillary first molar occlusal pads 2 are arranged on both sides of the base 1. The maxillary first molar occlusal pads 2 are respectively arranged on both sides of the base 1, specifically symmetrically arranged at the maxillary first molar. The maxillary first molar occlusal pads 2 and the base 1 are interconnected. The maxillary first molar occlusal pads 2 extend toward the tooth surface of the maxillary first molar. When the patient is in a occlusal state, the maxillary first molar occlusal pads 2 can change the contact point between the patient's teeth and guide the teeth to move to a predetermined position, thereby achieving an ideal occlusal relationship.

[0037] An occlusal maintenance portion 3 is formed in the upper and lower incisor regions, the occlusal maintenance portion 3 is connected to the base 1, and the occlusal maintenance portion 3 cooperates with the maxillary first molar occlusal pad to stabilize the patient's mandible.

[0038] The occlusal retaining portion 3 covers the upper and lower incisors, with the number of covered incisors ranging from 2 to 4. In this embodiment, the number of covered incisors is 4. The occlusal retaining portion 3 is connected to the base 1 and can wrap around the upper incisors. At the same time, the occlusal retaining portion 3 extends downward. When the patient is in the occlusal position, the occlusal retaining portion 3 can fit over the mandibular incisors to guide the position of the mandibular incisors.

[0039] The base 1, the maxillary first molar occlusal pad 2, and the occlusal maintaining part 3 are an integrated structure and are all made of transparent self-curing resin.

[0040] A method for manufacturing a retainer for maintaining occlusion during the transitional dentition period, comprising the following steps:

[0041] 1. The doctor prepares a scanned model of the oral dentition. Based on the scanned model, two dental models are made.

[0042] 2. Use 2.0mm inner soft outer hard film to perform bimaxillary dentition lamination on one of the dental models to make a bimaxillary separated transparent lamination retainer.

[0043] 3. Trim the molded retainer along the gingival margin.

[0044] 4. Another set of dental models uses the doctor's occlusal relationship to make the upper frame, requiring the front teeth to be at least 4mm apart.

[0045] 5. Apply a separating agent to the model of the maxillary frame.

[0046] 6. Place the bimaxillary separated transparent die-cast retainer made in step 2 on the maxillary arch model and seal the joints between the edge of the braces and the model with wax.

[0047] 7. Use transparent self-curing resin to fill the 2-2 area of ​​the upper and lower front teeth to fully fuse and adhere them; use transparent self-curing resin to fill the maxillary 6 occlusal area to form a "jaw pad" device that pads away from the opposing teeth.

[0048] The self-curing resin located in the upper and lower front teeth 2-2 area forms the occlusal maintenance part 3 after fusion and bonding, and the self-curing resin located in the maxillary 6 occlusal area forms the maxillary first molar occlusal pad 2 after fusion and bonding.

[0049] 8. Place the model in a press to form the mold. Set the temperature to 40°C to 46°C and the pressure to 0.35MPa to 0.4MPa. After 20 minutes, release the pressure in the press. Once the pressure is released, open the lid and allow the mold to cool before removing the retainer.

[0050] 9. After polymerization is complete, the retainer for the transitional period is ground and polished. Specifically, use a coarse grinding head to remove any plastic granular protrusions on the polished surface of the base, such as excessive length and flash. Then, polish with a damp cloth wheel dipped in a paste of fine quartz sand polishing powder. After polishing, apply a polishing wax to brighten the surface.

[0051] 10. Cleaning: Fill the ultrasonic cleaning machine with clean water, place the retainer in the cleaning machine's grid, and ultrasonically vibrate for 15 minutes. After the ultrasonic vibration is completed, remove the retainer.

[0052] When in use, the orthodontist designs the maxillary first molar occlusal pad 2 for the patient and fixes it with a base 1. An occlusal maintenance part 3 is set in the upper and lower front teeth area, which can maintain the effect of mandibular advancement, reduce the recurrence rate, and avoid waste of medical resources and medical disputes.

[0053] In step 2, the 2.0 mm inner soft outer hard membrane sheet comprises a thermoplastic polyurethane elastomer rubber composite material.

[0054] The occlusal support 3 adjusts the mandibular position to better occlude the patient's primary molars. It also vertically controls the height of the first molars and upper and lower anterior teeth, preventing the mandibular from rotating clockwise.

[0055] In this embodiment, the permanent teeth of patients in the transitional dentition stage replace the deciduous teeth. When wearing the transitional dentition occlusal retainer, the transitional dentition occlusal retainer does not affect the replacement of the deciduous molars. The maxillary first molar occlusal pad 2 is placed on the tooth surface of the maxillary first molar. Therefore, the transitional dentition occlusal retainer does not affect the lateral development of the dental arch.

[0056] The present invention can be used in combination with a base 1, a maxillary first molar occlusal pad 2, and an occlusal maintaining part 3 according to actual clinical conditions, which is helpful for preventing and blocking malocclusion in patients who are in the tooth replacement period and have Angle Class II Division 1 malocclusion. While improving the orthodontic treatment effect, it significantly improves the patient's wearing comfort, does not affect the replacement process of deciduous molars in the premolar area, and does not affect the lateral development of the upper and lower dental arches, and has good application prospects.

[0057] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art will appreciate that the present invention is not limited to the foregoing embodiments and that various modifications and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such modifications and improvements are intended to fall within the scope of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A retainer for maintaining occlusal position during the period of tooth replacement, comprising A base, wherein the base is arranged at the front of the hard palate; The maxillary first molar occlusal pad is respectively arranged on both sides of the base and is respectively located at the posterior position of the posterior teeth on both sides of the maxillary jaw; Features: Also includes An occlusal position maintaining portion is formed in the upper and lower incisor regions, and the occlusal position maintaining portion is connected to the base. The occlusal position maintaining portion cooperates with the maxillary first molar occlusal pad to stabilize the position of the patient's mandible.

2. The retainer for maintaining occlusion during the period of tooth replacement according to claim 1, Features: The retainer for maintaining occlusal position during the replacement tooth period is an integrated structure.

3. The retainer for maintaining occlusal position during the period of tooth replacement according to claim 1, Features: The number of incisor models of the occlusal maintenance part is 2-4.

4. The retainer for maintaining occlusal position during the period of tooth replacement according to claim 3, Features: The occlusal maintaining portion covers the upper incisors and the lower incisors.

5. The retainer for maintaining occlusal position during the period of tooth replacement according to claim 1, Features: The retainer for maintaining occlusal position during the replacement period includes a self-curing resin.

6. A retainer for maintaining occlusal position during the transitional dentition period according to any one of claims 1 to 5, Features: The preparation method of the retainer for maintaining occlusal position during the transitional period is as follows: comprising the following steps: 1) Make two dental models based on the oral dental scan model; 2) Perform bimaxillary dentition lamination on a set of dentition models to make a bimaxillary separated transparent lamination retainer; 3) Another dental model is mounted on a simple articulator using the doctor's occlusal relationship; 4) Wearing the transparent pressed film retainer to the dental arch model on the simple frame, and using wax to seal the edge of the braces and the dental arch model; 5) Use transparent self-curing resin to fill the upper and lower front teeth 2-2 area, so that the transparent pressed film retainer and the transparent self-curing resin are fully fused and adhered to form the occlusal maintenance part; use self-curing resin to fill the maxillary 6 occlusal area to form an occlusal pad with the maxillary first molar; 6) placing the bonded transparent film holder in a pressure polymerization machine for molding; 7) After the transparent pressed film holder is cooled, it is taken out, polished and cleaned.

7. A method for maintaining a retainer during the occlusal position during the transitional period according to claim 6, Features: In step 6, during molding, the temperature of the pressure polymerization machine is set to 40° C. to 46° C., and the pressure is set to 0.35 MPa to 0.4 MPa for 20 minutes.

Images