CN105411693B - II type personalized function appliance of one kind and preparation method thereof and application - Google Patents

Abstract

The invention discloses a type II individualized functional appliance and a preparation method thereof. The type II personalized functional appliance includes maxillary lateral base 1, maxillary lingual base 2, occlusal pad 3, mandibular lateral base 4, and mandibular lingual base 5; maxillary lateral base 1 and maxillary lingual base 2 are connected through the occlusal pad 3 to form an upper alveolar 6, and the mandibular lateral base 4 and the mandibular lingual base 5 are connected through the occlusal pad 3 to form a lower alveolar 7. The type II personalized functional appliance of the present invention can promote the growth of the mandible, inhibit the growth of the maxilla, and achieve the purpose of preventive or blocking correction of functional class II malocclusion or mild skeletal class II malocclusion; Completing the orthodontic treatment without tooth extraction and reduction can avoid the situation that the front part of the upper dental arch is narrower and the side profile is more concave. Good application prospects.

Description

A type II personalized functional appliance and its manufacturing method and application

technical field

The invention belongs to the technical field of oral medical instruments. More specifically, it relates to a type II personalized functional appliance and its manufacturing method and application.

Background technique

Angle's class II malocclusion is a relatively common clinical oral malformation, which can be divided into pseudo II malocclusion, dental II malocclusion, and skeletal II malocclusion. Pseudo-Ⅱ malocclusion, also known as functional Class-Ⅱ malocclusion, can force the mandible to move backward due to the interference of individual teeth, resulting in deep coverage of the anterior teeth, molars in Class-Ⅱ occlusal relationship, and the size of the upper and lower jaws is normal. The lower jaw is functionally displaced. The skeletal type II malocclusion is often accompanied by abnormal size and development of the mandible. Dental class II malocclusions are mostly caused by abnormal inclination of teeth, and good results can be achieved by post-orthodontic treatment; while functional and skeletal class II malocclusions require early intervention, otherwise the development of the mandible will be affected. With the increasing emphasis on facial features, maintaining a healthy oral state, maintaining mental health, and the development of orthodontics and oral medical technology, it is necessary to correct Angle's class Ⅱ malocclusion as soon as possible.

At present, the main treatment methods for functional class II malocclusion are cranial-muscle activator and twinblock appliance. However, the headgear-muscle activator has the following disadvantages: (1) the comfort of the headgear-muscle activator is poor; (2) it is often necessary to wear a headgear, which is unsightly; (3) it is impossible to align teeth while correcting bony problems ; (4) The existence of the traction device will cause certain potential safety hazards.

Although compared with the twinblock appliance, the twinblock appliance uses an intraoral appliance, which has the advantages of shorter treatment time, relatively better comfort, and higher patient cooperation, but still has the following defects: (1) It cannot be used in the treatment of bone The problem is to align the teeth at the same time; (2) It does not have the function of oral function training, etc.

Contents of the invention

The technical problem to be solved by the present invention is to overcome the defects and deficiencies of the existing treatment methods for functional Class II malocclusion, and to provide a targeted prevention or treatment of functional Class II or mild skeletal Class II malocclusion. The individualized functional appliance can achieve the purpose of preventive or blocking correction.

The purpose of the present invention is to provide a type II individualized functional appliance.

Another object of the present invention is to provide a manufacturing method of the type II personalized functional appliance.

Another object of the present invention is to provide the application of the type II personalized functional appliance (type II appliance) in the prevention and/or treatment of functional class II malocclusion or mild skeletal class II malocclusion.

The above object of the present invention is achieved through the following technical solutions:

A type II personalized functional appliance, including maxillary lateral base (1), maxillary lingual base (2), occlusal pad (3), mandibular lateral base (4) and mandibular lingual base (5) ; The maxillary lateral base (1) and the maxillary lingual base (2) are connected through the occlusal pad (3) to form the upper alveolar (6), the mandibular lateral base (4) and the mandibular lingual base (5) The lower alveolar (7) is formed as a whole through the connection of the occlusal pad (3).

The upper and lower jaw bases are connected as a whole through the occlusal pad 3, which can coordinate the development of the upper and lower jaws, and at the same time achieve the purpose of promoting the growth of the mandible and inhibiting the growth of the maxilla.

Further, the outer maxillary bases (1) are in contact with the teeth and gingival mucosa without extension.

Preferably, the maxillary lingual base (2) is in contact with both teeth and gingival mucosa without extension.

In addition, preferably, both the mandibular lateral base (4) and the mandibular lingual base (5) are in contact with the teeth and gingival mucosa without extension; and promote the buccal bone growth of the mandible.

Further preferably, the bite pad (3) is also provided with several ventilation holes (8) to ensure smoother breathing.

In addition, the maxillary lateral base (1) includes the maxillary buccal base (9) on both sides and the maxillary labial base (10) in the middle; the maxillary buccal base (9) and the maxillary labial base The trays (10) are all in contact with the teeth and the gingival mucosa without extension.

The mandibular lateral base (4) includes the mandibular buccal base (11) on both sides and the mandibular labial base (12) in the middle; the mandibular buccal base (11) and the mandibular labial base (12) All are in contact with the teeth and gingival mucosa without extension. The shape, size and extension of different parts can be adjusted appropriately according to the actual tooth condition.

As a preferred implementation, the above-mentioned type II personalized functional appliance is made of silicone material.

Specifically, the manufacturing method of the above-mentioned type II personalized functional appliance includes the following steps:

1) Occlusal reconstruction: the mandible moves upward in the sagittal direction to the incisal position of the anterior teeth, the vertical position of the mandible is opened beyond the occlusal gap, and the upper and lower midlines remain consistent;

2) Model taking: On the basis of the above occlusion, prepare the wax-type relationship between the upper and lower jaws, that is, the intraoral model containing the patient's oral data;

3) Convert the three-dimensional data of the patient's oral structure according to the intraoral model, and determine the relationship between the upper and lower jaws. If necessary, proper tooth arrangement can be performed to obtain the integration of the relative positional relationship between the upper and lower jaw dentition and the alveolar bone. digital model of

4) Design the structure and shape of the functional appliance on the digital model;

5) Use 3D printing technology to print out the shape of the appliance, that is, print out an appliance model with a hollow structure inside;

6) Inject silica gel into the obtained hollow appliance model, and after hardening, remove the model to obtain a type II personalized functional appliance made of silicone material.

Wherein, the silica gel has a certain hardness, specifically, a Shore hardness of 10 to 80.

The above-mentioned type II personalized functional appliance can be applied to the correction of functional class II or mild skeletal class II malocclusion in children and adolescents, preventive or blocking correction, etc.; it can realize the role of occlusal reconstruction, that is, the mandible Sagittal upward movement to the anterior incisor tangential position; the vertical position of the mandible is opened beyond the resting and occlusal gap; the upper and lower midlines remain the same.

Therefore, the application of the above-mentioned type II personalized functional appliance in the prevention and/or treatment of functional class II malocclusion or mild skeletal class II malocclusion, as well as the application in preventive or blocking correction, etc. , should also be within the protection scope of the present invention. Preferably, it is more suitable for the correction of functional class II or mild skeletal class II malocclusion in children and adolescents.

Furthermore, the type II personalized functional appliance of the present invention is especially suitable for patients with mixed dentition or initial permanent dentition with functional overbite or mild bony overbite.

In specific application, the use method of the type II individualized functional appliance of the present invention is very simple, and it can be taken out at will when eating or drinking.

For specific applications, wear it for 10-14 hours a day. It is recommended to wear it at night and try to wear it during the day; you need to take it out when eating and drinking, and continue to wear it after cleaning your mouth after meals.

The present invention has the following beneficial effects:

The invention provides a type II personalized functional appliance, which can promote the growth of the mandible, inhibit the growth of the maxilla, and achieve preventive or blocking correction of functional class II malocclusion or mild skeletal class II malocclusion. The purpose of jaw deformity is to correct the anterior crossbite and improve the facial shape; to avoid the situation that the front part of the upper dental arch is narrower and the side profile is more concave. Compared with the functional Class II malocclusion appliance in the prior art, it has the following obvious advantages:

1) It can promote the growth of the mandible and inhibit the growth of the maxilla;

2) Some teeth can be aligned when appropriate;

3) Using silicone instead of hard resin, it is more comfortable to wear;

4) 3D personalized design, no need to bend the bow wire.

Description of drawings

Figure 1 is a longitudinal sectional view of the middle part (ie the lip) of the appliance.

Fig. 2 is a longitudinal sectional view of the side part (ie the cheek) of the appliance.

Figure 3 is a cross-sectional top view of the appliance.

Fig. 4 is a schematic diagram of the front view of the appliance.

Fig. 5 is a schematic diagram of an overall view of the appliance in use.

Fig. 6 is a schematic coronal view of the appliance in use.

Fig. 7 is a schematic diagram of a sagittal view of the appliance in use.

Fig. 8 is a schematic diagram of the front view of the appliance in use.

Fig. 9 is a schematic diagram of the occlusal surface of the teeth in the state of use of the appliance.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but the embodiments do not limit the present invention in any form. Unless otherwise specified, the reagents, methods and equipment used in the present invention are conventional reagents, methods and equipment in the technical field.

Unless otherwise specified, the reagents and materials used in the following examples are commercially available.

Example 1 Type II Personalized Functional Appliance

1. A type II personalized functional appliance, as shown in Figures 1 to 9, including maxillary lateral base 1, maxillary lingual base 2, occlusal pad 3, mandibular lateral base 4, and mandibular lingual base 5. The maxillary lateral base 1 and the maxillary lingual base 2 are connected through the occlusal pad 3 to form the upper alveolar 6, and the mandibular lateral base 4 and the mandibular lingual base 5 are connected through the occlusal pad 3 to form the lower alveolar 7.

The upper and lower jaw bases are connected as a whole through the occlusal pad 3, which can coordinate the development of the upper and lower jaws, that is, promote the growth of the mandible and inhibit the growth of the maxilla.

In addition, the maxillary lateral base 1 includes maxillary buccal base portions 9 on both sides and the middle maxillary labial base portion 10; the mandibular lateral base 4 includes mandibular buccal base portions 11 on both sides and the middle The labial base of the mandible 12 . In actual application, the shape, size and extension of different parts can be adjusted appropriately according to the actual tooth conditions.

Further, the outer maxillary base 1 is in contact with the teeth and gingival mucosa without extension.

The maxillary lingual bases 2 are all in contact with the teeth and gingival mucosa without extension.

Both the mandibular lateral base (4) and the mandibular lingual base (5) are in contact with the teeth and gingival mucosa without extension; they promote the buccal bone growth of the mandible.

In addition, the maxillary lateral base (1) includes the maxillary buccal base (9) on both sides and the maxillary labial base (10) in the middle; the maxillary buccal base (9) and the maxillary labial base The trays (10) are all in contact with the teeth and the gingival mucosa without extension.

The mandibular lateral base (4) includes the mandibular buccal base (11) on both sides and the mandibular labial base (12) in the middle; the mandibular buccal base (11) and the mandibular labial base (12) All are in contact with the teeth and gingival mucosa without extension. The shape, size and extension of different parts can be adjusted appropriately according to the actual tooth condition.

In addition, the bite pad 3 is also provided with several ventilation holes 8 to ensure smoother breathing.

2. The type II personalized functional appliance of the present invention is especially suitable for the prevention and/or treatment of functional Class II malocclusion or mild skeletal Class II malocclusion, as well as preventive or blocking correction, especially mixed Patients with functional overbite or mild skeletal overbite in the initial stage of dentition or permanent dentition.

For specific applications, wear it for 10-14 hours a day. It is recommended to wear it at night and try to wear it during the day; you need to take it out when eating and drinking, and continue to wear it after cleaning your mouth after meals.

Example 2 Manufacturing method of type II personalized functional appliance

The manufacturing method of type II personalized functional appliance described in embodiment 1 comprises the following steps:

1) Occlusal reconstruction: the mandible moves upward in the sagittal direction to the incisal position of the anterior teeth, the vertical position of the mandible is opened beyond the occlusal gap, and the upper and lower midlines remain consistent;

2) Model taking: On the basis of the above occlusion, prepare the wax-type relationship between the upper and lower jaws, that is, the intraoral model containing the patient's oral data;

3) Convert the three-dimensional data of the patient's oral structure according to the intraoral model, and determine the relationship between the upper and lower jaws. If necessary, proper tooth arrangement can be performed to obtain the integration of the relative positional relationship between the upper and lower jaw dentition and the alveolar bone. digital model of

4) Design the structure and shape of the functional appliance on the digital model;

5) Use 3D printing technology to print out the shape of the appliance, that is, print out an appliance model with a hollow structure inside;

6) Inject silica gel into the obtained hollow appliance model, and after hardening, remove the model to obtain a type II personalized functional appliance made of silicone material.

Wherein, the silica gel has a certain hardness, specifically, a Shore hardness of 10 to 80.

Claims (5)

1. A type II personalized functional appliance, characterized in that it comprises maxillary lateral base (1), maxillary lingual base (2), occlusal pad (3), mandibular lateral base (4) and mandibular lingual Lateral base (5); maxillary lateral base (1) and maxillary lingual base (2) are connected by occlusal pads (3) to form upper alveolar (6), mandibular lateral base (4) and mandibular lingual The lateral base (5) is connected with the occlusal pad (3) to form a lower alveolar (7); the maxillary lateral base (1) and the maxillary lingual base (2) are both in contact with the teeth and gingival mucosa, No extension is performed; the mandibular lateral base (4) and the mandibular lingual base (5) are in contact with both teeth and gingival mucosa, and no extension is performed. 2. The type II individualized functional appliance according to claim 1, characterized in that, the occlusal pad (3) is provided with several ventilation holes (8). 3. The type II personalized functional appliance according to claim 1, characterized in that, the maxillary lateral base (1) includes maxillary buccal bases (9) on both sides and the middle maxillary labial base (10); the outer mandibular base (4) includes the buccal mandibular base (11) on both sides and the labial mandibular base (12) in the middle. 4. The type II personalized functional appliance according to any one of claims 1-3, characterized in that it is made of silicone material. 5. The manufacturing method of the type II personalized functional appliance according to any one of claims 1 to 4, characterized in that it comprises the following steps: 1) Occlusal reconstruction: the mandible moves upward in the sagittal direction to the incisal position of the anterior teeth, the vertical position of the mandible is opened beyond the occlusal gap, and the upper and lower midlines are kept consistent; 2) Model taking: On the basis of the above occlusion, prepare the wax-type relationship between the upper and lower jaws, that is, the intraoral model containing the patient's oral data; 3) Convert the three-dimensional data of the patient's oral structure according to the intraoral model, and determine the relationship between the upper and lower jaws. If necessary, proper tooth arrangement can be performed to obtain the integration of the relative positional relationship between the upper and lower jaw dentition and the alveolar bone. digital model of 4) Design the structure and shape of the functional appliance on the digital model; 5) Use 3D printing technology to print out the shape of the appliance, that is, print out an appliance model with a hollow structure inside; 6) Inject silica gel into the obtained hollow appliance model, and after hardening, remove the model to obtain a type II personalized functional appliance made of silicone material.