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Volume 22 , Issue 6
November/December 2009

Pages 620622

Short Communication: In Vitro Analysis of Laboratory-Processed and CAD/CAM-Generated Occlusal Onlay Surfaces

Sven Reich, Dr Med Dent/Lars Trentzsch, DDS/Stephan Gozdowski, DDS/Karl-Friedrich Krey, Dr Med Dent

PMID: 19918600

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). Int J Prosthodont 2009;22:620622.

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