Computer graphic representation of mandibular movements in three dimensions: the method.

Area of Science:

• Dental mechanics
• Biomechanical engineering
• Computer-aided design in dentistry

Background:

• Articulators are essential tools in dentistry for simulating jaw movements.
• Accurate simulation requires precise modeling of both the articulator and dental anatomy.
• Previous methods lacked the quantitative and graphical analysis capabilities for complex simulations.

Purpose of the Study:

• To develop a mathematical simulation of the Denar D4A articulator and dental anatomy.
• To create a computer program for quantitatively evaluating the effects of articulator and control factors on tooth anatomy.
• To enable graphical and numerical assessment of simulated dental changes.

Main Methods:

• Programming a mathematical simulation of the Denar D4A articulator using a Prime 4000 minicomputer.
• Developing a simulated complement of graphically represented teeth within the computer program.
• Manipulating the computer program to alter articulator and control factors.

Main Results:

• The computer program successfully simulated the Denar D4A articulator and dental anatomy.
• Quantitative evaluation of theoretical effects of changes in articulator factors on tooth anatomy was achieved.
• Graphical and numerical data representation of these effects were generated.

Conclusions:

• A versatile mathematical simulation of dental articulators and teeth is feasible.
• This simulation provides a powerful tool for quantitatively analyzing factors influencing dental anatomy.
• The system allows for statistical manipulation of data, aiding further research in dental mechanics.