Invisible orthodontic treatment method designing integral movement of teeth based on morphology of alveolar bones

Abstract

The invention provides an invisible orthodontic treatment method designing integral movement of teeth based on the morphology of alveolar bones. The method comprises the following steps: S1, acquiring CBCT data; S2, acquiring STL data; S3, acquiring combining data of integral teeth; S4, reconstructing and restoring an original occlusion form in the mouth of a patient; S5, adjusting three-dimensional positions of the teeth; S6, carrying out simulated orthodontic treatment according to the adjustment data of the three-dimensional positions of the teeth; S7, generating a dentition model adjusting sequence; and S8, producing an invisible appliance meeting requirements. According to the invention, accurate morphological data of a dental crown is acquired through the digital dentition model, three-dimensional morphological data of teeth roots and alveolar bones are acquired through CBCT, and the morphological data of the dental crown and the three-dimensional morphological data are combined and matched; thus, the positional relationship between the teeth roots and the alveolar bones can be clearly seen in real time in designing of an invisible orthodontic treatment scheme and in generation of the dentition model sequence capable of simulating movement of teeth, and the problems of periodontal fenestration defects, periodontal cracks and obvious absorption of teeth roots caused by close collision between the teeth roots and the alveolar bones are overcome.

Description

technical field [0001] The invention relates to a treatment method for malocclusion, in particular to an invisible treatment method for designing overall movement of teeth based on alveolar bone shape. Background technique [0002] Invisible aligners, also known as "bracketless invisible aligners", are a type of orthodontics. Bracketless invisible aligners do not have the archwires and brackets in the traditional orthodontic process, and are widely favored by cosmetic patients because of their outstanding advantages such as aesthetics, comfort, and convenient tooth cleaning. [0003] At present, the existing invisible aligner production companies are based on the three-dimensional data of the patient's crown, design the invisible orthodontic plan, then generate the tooth model data for printing, and finally produce the invisible aligner according to the tooth model. The three-dimensional data acquisition method of the crown is to obtain the three-dimensional surface morphol...

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Problems solved by technology

[0004] However, the above method has a fundamental defect: the design of the invisible orthodontic scheme only pays attention to the arrangement of the crown and ignores the importance of the overall position of the teeth in the alveolar bone during the orthodontic process

Thus, there will be great hidden dangers in the process of patients accepting the above-mentioned invisible correction

For example, it is likely that during the tooth movement, the tooth root directly moved out of the alveolar bone, resulting in serious problems such as bone fenestration, bone cracking, and long-term collision between the tooth root and the cortical bone, resulting in excessive absorption of the tooth root and tooth loosening or even loss.

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