Dental jaw movement locus recording device and dental jaw relationship transferring method

Abstract

The invention discloses a dental jaw movement locus recording device and a dental jaw relationship transferring method. The dental jaw relationship transferring method comprises the following steps of carrying out digital dental jaw recurrence; extracting an optimal occlusion locus from a plurality of obtained dental jaw movement loci; driving an integral three-dimensional dental jaw by an optimal occlusion locus; and simulating the real lower jaw movement relative to an upper jaw so as to finish the transfer of the dental jaw relationship. According to the dental jaw relationship transferring method disclosed by the invention, movement loci are analyzed by a machine self-learning system based on a distance-weighted nearest neighbor algorithm so as to bring good robustness for noise in the trained movement locus data, k neighbor weighted averages are taken, the influence of an isolated noise movement locus is eliminated so as to obtain a real lower jaw movement locus, the one-sidedness for obtaining a single lower jaw movement locus is avoided, and the real lower jaw movement locus is utilized to drive the integral three-dimensional dental jaw to simulate the real lower jaw movement relative to the upper jaw so as to realize the transfer of the dental jaw relationship.

Description

technical field [0001] The invention belongs to the field of clinical orthodontics, and in particular relates to a tooth-jaw movement track recording device and a tooth-jaw relationship transfer method. Background technique [0002] With the rapid development of stomatology and bioinformatics, As a device for simulating the structure and function of human masticatory organs, frame is widely used in orthodontics, prosthodontics, Clinical, teaching and scientific research work in the field of jaw surgery and orthognathic surgery. Existing traditional mechanical The insurmountable limitations of the frame gradually exposed, and it is far from meeting the requirements of basic research and clinical treatment, which are mainly reflected in the following aspects: 1) Frame records cannot be stored for a long time and cannot be reused; 2) Due to the limitation of the model, the object observed in motion is a plaster model; 3) Due to the limitation of precision, traditional me...

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Problems solved by technology

[0004] In the literature: Zhang Changdong et al., Measurement and display of occlusal trajectory based on Patriot, Journal of Southeast University (Medical Edition), 2009, 28 (6), 487-490, proposed a method for measuring occlusal trajectory, the trajectory The curve is the motion trajectory obtained by using the coordinates of the positions of several selected points of the mandible, and then using curve fitting between each position point. There is a problem of low accuracy in fitting the trajectory curve through this simple few points.

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