Method for animating models of the mandibular and maxillary arches of a patient in a corrected intermaxillary relationship

Abstract

The invention relates to a method for animating models of the mandibular and maxillary arches of a patient in a corrected intermaxillary relationship, comprising: providing three-dimensional numerical models (MD, MX) of the mandibular and maxillary arches of the patient; providing a recording of the mandibular motion of the patient, said recording comprising a plurality of relative positions of the mandible of the patient with respect to the maxilla; selecting, from said positions, a reference position (X) of the mandible with respect to the maxilla of the patient; - determining a target position (Y) for the mandible with respect to the maxilla, said target position defining a corrected intermaxillary relationship for the patient; determining a rigid transformation between the reference position (X) and the target position (Y); applying said rigid transformation (i) to the recording of the mandibular motion of the patient in order to animate the three-dimensional numerical models of the mandibular and maxillary arches, or (ii) to the three-dimensional numerical model of the mandible, the delivered recording of the mandibular motion being applied to the three-dimensional numerical models of the mandible and of the maxilla in order to animate said models.

Description

technical field [0001] The present invention belongs to the field of dentistry. More precisely, the invention relates to a method for animating a model of a patient's mandibular and maxillary arches in corrected interjaw relationship. Background technique [0002] The occlusal vertical distance (commonly referred to as VDO) is an important dimension of an individual's face, both aesthetically (proportional harmony) and functionally (comfort associated with temporomandibular function). [0003] The occlusal vertical distance is generally defined as the height of the lower part of the face, or more simply, the distance between the subnasal point and the submandibular point during the occlusal phase. Traditionally, the subnasal point is defined as the anterior nasal spine, while the submandibular point is the most anterior point of the most oblique part of the chin protrusion. [0004] In dentistry, it is sometimes necessary to increase the occlusal vertical distance of a pat...

AI Technical Summary

Problems solved by technology

[0007] However, this articulator provides an imprecise simulation, since the applied kinematics are approximate and do not correspond to the patient's real jaw kinematics (also known as true function)

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