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The International Journal of Prosthodontics

Edited by George A. Zarb, BChD, DDS, MS, MS, FRCD(C)

ISSN 0893-2174

May/June 2004
Volume 17 , Issue 3

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Long-Term Survival of Porcelain Laminate Veneers Using Two Preparation Designs: A Retrospective Study

Roger J. Smales, MDS, DDSc/Soheila Etemadi, DDS, MDS

Pages: 323326
PMID: 15237880

Purpose:This study evaluated the long-term survival of anterior porcelain laminate veneers placed with and without incisal porcelain coverage. Materials and Methods: Two prosthodontists in a private dental practice placed 110 labial feldspathic porcelain veneers in 50 patients; 46 veneers were provided with incisal porcelain coverage, and 64 were not. The veneers were evaluated retrospectively from case records for up to 7 years (mean 4 years). Results:At 5, 6, and 7 years, the cumulative survival estimates were 95.8% for veneers with incisal porcelain coverage and 85.5% for those without incisal coverage. The difference was not statistically significant. Six of the nine failures occurred from porcelain fracture in the veneers without incisal coverage. Conclusion: Although there was a trend for better long-term survival of the veneers with incisal porcelain coverage, this finding was not statistically significant. Int J Prosthodont 2004;17:323326.

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