Computer-aided analysis of the influence of digitizing and surfacing on the accuracy in dental CAD/CAM technology

Heike Rudolph; Ralph G Luthardt; Michael H Walter

doi:10.1016/j.compbiomed.2006.05.006

Computer-aided analysis of the influence of digitizing and surfacing on the accuracy in dental CAD/CAM technology

Comput Biol Med. 2007 May;37(5):579-87. doi: 10.1016/j.compbiomed.2006.05.006. Epub 2006 Jul 17.

Authors

Heike Rudolph¹, Ralph G Luthardt, Michael H Walter

Affiliation

¹ Department of Prosthodontics, Medical Faculty Carl Gustav Carus, Dresden University of Technology, Fetscherstrasse 74, 01307 Dresden, Germany. heike.rudolph@uniklinikum-dresden.de

PMID: 16844107
DOI: 10.1016/j.compbiomed.2006.05.006

Abstract

In dentistry, ceramic materials with high fracture resistance are needed for all-ceramic fixed partial dentures (FPDs). The sophisticated processing of advanced ceramics that can be used for such dental restorations demands the application of CAD/CAM technologies. These techniques necessitate digitizing of the prepared teeth or the planned restoration itself and surfacing of the acquired digital data before milling paths can be generated. As precision in fit is crucial for dental restorations, a computer-aided method for the quantitative and qualitative 3D analysis has been developed and applied. Factors influencing the obtainable precision in the application of CAD/CAM techniques were taken into consideration.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Computer-Aided Design* / standards
Cuspid / anatomy & histology
Dental Prosthesis Design / methods
Dental Prosthesis*
Humans
Image Processing, Computer-Assisted / methods*
Image Processing, Computer-Assisted / standards
Imaging, Three-Dimensional / methods
Lasers
Models, Anatomic
Molar / anatomy & histology
Surface Properties
Technology, Dental* / standards
Tooth Preparation / methods