Comparison of the marginal fit of various ceramic crown systems.
This study evaluated the marginal fit of four ceramic crown systems, (1) metal ceramic crowns with a metal margin, (2) metal ceramic crowns with a porcelain facial margin, (3) Cerestore crowns, and (4) Dicor crowns. Measurements of the marginal adaptation were recorded from the facial and lingual margins by using a video-enhanced microscope with digital micrometer and image intensification in a high resolution television screen. Results indicate that all four crown systems yielded comparable and acceptable marginal fit.
Abbate
M F
MF
Department of Restorative Dentistry, Loma Linda University, School of Dentistry, Calif.
Tjan
A H
AH
Fox
W M
WM
D000537:Aluminum Oxide; D002484:Cementation; D002516:Ceramics; D003442:Crowns; D003722:Dental Alloys; D003737:Dental Cavity Preparation; D003776:Dental Porcelain; D003779:Denture Design; D005898:Glass; D013499:Surface Properties; D015036:Zinc Phosphate Cement
D003722:Dental Alloys; C047475:Dicor ceramic; D003776:Dental Porcelain; D015036:Zinc Phosphate Cement; C050798:cerestore; D000537:Aluminum Oxide