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Volume 22 , Issue 6
November/December 2009

Pages 573–575

Short Communication: Comparison of Load-Fatigue Testing of Ceramic Veneers with Two Different Preparation Designs

Yada Chaiyabutr, DDS, MSD, DSc/Keith M. Phillips, DMD, MSD/Polly S. Ma, DMD, MSD/Kinsey ChitSwe, DMD, MS, MSD

PMID: 19918591

The concept of tooth preparation for ceramic veneers remains controversial regarding whether the use of a palatal chamfer would affect the longevity of restorations. This study aimed to evaluate the load-fatigue testing of ceramic veneers using two different preparation designs—an incisal shoulder finish line with or without a palatal chamfer. A pressable ceramic veneer was bonded to the prepared maxillary central incisor using resin cement. The number of cycles until fatigue failure for each tooth-veneer specimen was recorded. Results revealed that using a palatal chamfer margin design significantly increased the fatigue failure cycle count. Int J Prosthodont 2009;22:573–575.

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