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A method for preparing an appliance for abnormal repositioning of the mandible

A technology of repositioning and mandible, applied in the field of orthodontics, can solve the problems of invisible aligner treatment function correction, clear diagnosis and design methods, etc.

Active Publication Date: 2022-03-11
HANGZHOU MEIQI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no clear and clear diagnosis and design method for the invisible aligner with transparent removable belt for therapeutic function correction

Method used

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  • A method for preparing an appliance for abnormal repositioning of the mandible
  • A method for preparing an appliance for abnormal repositioning of the mandible
  • A method for preparing an appliance for abnormal repositioning of the mandible

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Experimental program
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Effect test

Embodiment Construction

[0057] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0058] Step 1) Obtain the patient's initial dental model, which includes the 3D digital model data of the upper and lower dentition of the teeth, and record its initial relative position as P0. The patient's initial dental model can be obtained by intraoral scanning of the patient, or by A silicone impression of the patient is taken, followed by an impression or plaster scan. The initial relative position P0 of the model reflects the patient's current occlusion in the mouth.

[0059] Step 2) Repositioning of the mandible of the patient. According to the initial relative position P0 of the model, a mandibular repositioning model P1 is determined.

[0060] For the determination of the mandibular repositioning model of a certain patient, the purpose is to adjust the position of the mandible so that it can reach the normal anteroposterio...

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Abstract

The invention discloses a method for preparing an appliance for abnormal repositioning of the mandible. First, the patient's initial dental model is obtained, and the occlusal relationship of the upper and lower dentitions in the initial dental model is used as the initial relative position of the model; the patient's mandible is repositioned according to the initial relative position of the model to determine the mandibular repositioning model; based on the mandibular repositioning model, the design The maxillary molar jaw pad set and the guide bevel model set are fused to obtain a printed model set after the structures of the maxillary molar jaw pad set and the guide bevel model set are combined; an orthopedic accessory model set bonded to the labial or lingual surface of the teeth is designed; the mandibular The repositioning model, printing model group and orthosis accessory model group A are combined to obtain the upper jaw model and mandibular model through 3D printing. The printed models are formed and cut through hot pressing film to obtain the mandibular repositioning orthosis. In the process of mandibular repositioning and correction, the present invention realizes invisible correction and functional correction at the same time.

Description

Technical field [0001] The invention belongs to the field of dental correction, and specifically relates to a method for preparing an appliance for abnormal repositioning of the mandible. Background technique [0002] In the classification of malocclusion in the field of orthodontics, skeletal Class II patients not only suffer from crowding of the dentition, but also have abnormal development of the mandible. The development of the mandible is recessed relative to the maxilla. In this state, the first molars are in a distal relationship, and such patients have symptoms of mandibular retrusion. For skeletal Class III patients, in addition to crowding of the dentition, the development of the mandible is protruding relative to the maxillary process, and the first molars are in a mesial relationship. Such patients have symptoms of overdevelopment of the mandible. . Bone deformity has a great impact on the patient's facial appearance. [0003] The correction of skeletal class ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C64/386A61C7/00A61C7/08B33Y50/00
CPCB29C64/386A61C7/00A61C7/08B33Y50/00
Inventor 宁楠王启超
Owner HANGZHOU MEIQI TECH CO LTD
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