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Quintessence Publishing: Journals: IJP
The International Journal of Prosthodontics

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

ISSN 0893-2174

Publication:
September/October 1997
Volume 10 , Issue 5

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A Comparison of the Marginal Fit of In-Ceram, IPS Empress, and Procera Crowns

Sulaiman/Chai/Jameson/Wozniak

Pages: 478-484
PMID: 9495168

The in vitro marginal fit of three all-ceramic crown systems (In-Ceram, Procera, and IPS Empress) was compared. All crown systems were significantly different from each other at P = 0.05. In-Ceram exhibited the greatest marginal discrepancy (161 um), followed by Procera (83 um), and IPS Empress (63 um). There were no significant differences among the various stages of the crown fabrication: core fabrication, porcelain veneering, and glazing. The facial and lingual margins exhibited significantly larger marginal discrepancies than the mesial and distal margins.

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