Computer aided design method for deciding orthodontic and orthognathic joint treatment operation opportunity

Abstract

The invention provides a computer aided design method for deciding an orthodontic and orthognathic joint treatment operation opportunity. The method comprises the following steps of firstly acquiringthree-dimensional holographic head data, then performing virtual preoperative orthodontics on the alveolar bone with dental crown and tooth root information, performing virtual osteotomy on the upperjaw bone and the lower jaw bone based on tooth arrangement after the virtual preoperative orthodontics, and locking correct position relations of the upper and lower jaw bones and the dentitions; andon a virtual upper and lower jaw complex in which the correct position relationship of the upper and lower jaw bones is established, previewing a change process of gradually transitioning an occlusionrelationship between the upper teeth and the lower teeth of the original dentitions from a disordered state to a stable state, and performing screening according to a series of stable occlusion states automatically detected by a computer to obtain an earliest stable middle occlusion state of the upper and lower dentitions at the operation opportunity. According to the method, through the whole-process digital virtual design of the computer, the unpredictability that the treatment of a traditional orthodontic and orthognathic joint scheme excessively depends on the experience of a doctor is avoided, and the method has important guiding significance for orthodontic and orthognathic joint treatment.

Description

technical field [0001] The invention relates to the technical field of computer-aided design, in particular to a computer-aided design method for deciding the timing of combined orthodontic and orthognathic treatment operations. Background technique [0002] Combined orthodontic and orthognathic treatment is an important medical method for correcting skeletal dento-maxillofacial deformities, and requires the joint treatment of orthodontists and orthognathic surgeons. The process of traditional combined orthodontic and orthognathic treatment is as follows: after formulating the combined treatment plan, the orthodontist first performs preoperative orthodontic treatment so that the bone deformity can be fully displayed, and then the orthognathic doctor designs and implements the operation, and the operation immediately achieves roughly The occlusal relationship is normal, but the occlusion of individual teeth is not good, which needs to be improved through postoperative orthodo...

AI Technical Summary

Problems solved by technology

There are three disadvantages in this method: 1. The orthodontist lacks a clear goal for preoperative orthodontics, and the treatment efficiency is low. It usually takes 2-3 years or even longer; 2. The speed and quality of preoperative orthodontics are high Relying on the experience of orthodontists cannot be standardized, which seriously limits the promotion and application of medical technology; 3. During the long preoperative orthodontic process, the occlusal relationship of patients is deteriorating day by day, and the facial shape is deteriorating. "If you want to be beautiful, you must first become a ghost "Because many patients do not receive the treatment

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