In vitro analysis of laboratory-processed and CAD/CAM-generated occlusal onlay surfaces.
The purpose of this study was to evaluate the occlusion of all-ceramic onlay surfaces generated with a laboratory (LAB) and computer-aided design/computer-assisted manufacturing (COMP) system. The treatment of the mandibular left first molar was simulated on 16 casts. A minimum of three static contacts and their localization were defined beforehand (MIN3). The occlusal contacts obtained (CORR) were analyzed and the mean quotients (MIN3/CORR) for COMP- and LAB-processed restorations were calculated (1.06 +/- 0.17 and 1.03 +/- 0.13, respectively). The Wilcoxon signed ranks test revealed no significant differences (P <.05).
Reich
Sven
S
Department of Prosthodontics, RWTH Aachen University Aachen, Germany. sreich@ukaachen.de
Trentzsch
Lars
L
Gozdowski
Stephan
S
Krey
Karl-Friedrich
KF
D003198:Computer Simulation; D017076:Computer-Aided Design; D003766:Dental Occlusion; D017267:Dental Prosthesis Design; D006801:Humans; D007284:Inlays; D008334:Mandible; D003765:Models, Dental; D008963:Molar; D012984:Software