Orthodontics: computer-aided diagnosis and treatment planning

Yaxing Yi; Zhongke Li; Suyuan Wei; Fanglin Deng; Sen Yao

doi:10.1117/12.403952

11 October 2000 Orthodontics: computer-aided diagnosis and treatment planning

Yaxing Yi, Zhongke Li, Suyuan Wei, Fanglin Deng, Sen Yao

Proceedings Volume 4224, Biomedical Photonics and Optoelectronic Imaging; (2000) https://doi.org/10.1117/12.403952
Event: Optics and Optoelectronic Inspection and Control: Techniques, Applications, and Instruments, 2000, Beijing, China

Abstract

The purpose of this article is to introduce the outline of our newly developed computer-aided 3D dental cast analyzing system with laser scanning, and its preliminary clinical applications. The system is composed of a scanning device and a personal computer as a scanning controller and post processor. The scanning device is composed of a laser beam emitter, two sets of linear CCD cameras and a table which is rotatable by two-degree-of-freedom. The rotating is controlled precisely by a personal computer. The dental cast is projected and scanned with a laser beam. Triangulation is applied to determine the location of each point. Generation of 3D graphics of the dental cast takes approximately 40 minutes. About 170,000 sets of X,Y,Z coordinates are store for one dental cast. Besides the conventional linear and angular measurements of the dental cast, we are also able to demonstrate the size of the top surface area of each molar. The advantage of this system is that it facilitates the otherwise complicated and time- consuming mock surgery necessary for treatment planning in orthognathic surgery.

Citation Download Citation

Yaxing Yi, Zhongke Li, Suyuan Wei, Fanglin Deng, and Sen Yao "Orthodontics: computer-aided diagnosis and treatment planning", Proc. SPIE 4224, Biomedical Photonics and Optoelectronic Imaging, (11 October 2000); https://doi.org/10.1117/12.403952

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KEYWORDS

Visualization

3D metrology

Laser scanners

Computing systems

Distance measurement

Teeth

Computer aided diagnosis and therapy

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