OWN - Quintessenz Verlags-GmbH CI - Copyright Quintessenz Verlags-GmbH OCI - Copyright Quintessenz Verlags-GmbH TA - Int J Prosthodont JT - The International Journal of Prosthodontics IS - 1942-4426 (Electronic) IS - 0893-2174 (Print) IP - 5 VI - 10 PST - ppublish DP - 1997 PG - 478-484 LA - en TI - A Comparison of the Marginal Fit of In-Ceram, IPS Empress, and Procera Crowns FAU - Sulaiman AU - Sulaiman FAU - Chai AU - Chai FAU - Jameson AU - Jameson FAU - Wozniak AU - Wozniak CN - AB - 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. AID - 848106