Method for using dynamic virtual articulator for simulating occlusion when designing dental prosthesis for patient, and data carrier

Abstract

The group of inventions relates to medical technology, and more particularly to means for dynamic virtual articulation. One of the inventions is a method for using a dynamic virtual articulator for simulating occlusion during a change in the initial position of the lower jaw or fragments thereof, and for modeling the position of the teeth in relation to one another and the position and shape of false teeth, said method being carried out with the aid of a computer. The method includes the following steps: providing a virtual articulator comprising a virtual three-dimensional model of the upperjaw and dental arch and a virtual three-dimensional model of the lower jaw and dental arch, resembling the upper jaw and upper teeth and the lower jaw and lower teeth, respectively, of the patient; and providing simulated movements of the virtual upper jaw and the virtual lower jaw in relation to one another for simulating dynamic occlusion, during which penetrating and non-penetrating contact mayoccur between teeth in the virtual upper and virtual lower jaw. Providing the virtual articulator further includes providing virtual three-dimensional models of the temporomandibular joints, resembling the heads of the lower jaw, the mandibular fossae, and the articular tubercles of the temporal bones, and carrying out simulated movements of the jaws in relation to one another is preceded by clinically or virtually setting initial and final positions. Furthermore, the virtual surfaces of the heads of the lower jaw and the virtual surfaces of the articular tubercles and the mandibular fossae of the temporal bones of the patient are disengaged. A second invention is a non-volatile machine-readable medium with a stored code containing instructions which, when executed, allow the proposed method to be carried out. The group of inventions makes it possible to provide a virtual articulator that simulates as closely as possible the actual processes occurring in the patient's mouth.

Description

technical field [0001] The present invention relates to medical devices, and more particularly to devices for dynamic virtual joints. Background technique [0002] The articulator, as a mechanical device, represents a simplified model of the chewing apparatus, on which the tooth model is fixed and its motion is set by guides in the joint area and the inclined surfaces of the incisor table. The guide and face inclinations were set according to anatomical averages or individual values ​​recorded by axograph. Dental laboratory technicians investigated the availability and sequence of contact of artificial dentures and human real teeth for future dentition structures by simulating lateral and anteroposterior movements from a central (habitual) occlusal position. [0003] The prior art discloses a method for occlusal simulation modeling using a dynamic virtual articulator when automatically designing artificial dentures and when designing an orthodontic treatment plan for a pati...

AI Technical Summary

Problems solved by technology

This traditional approach leads to an excessively long overall time for combined dental treatment

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