Comparison of conventional paint-on die spacers and those used with the all-ceramic restorations.
The study compared the thickness of conventional (Tru-Fit and Belle de St. Claire) and all-ceramic (Dicor and Cerestore) die spacers. Three coats of Tru-Fit, two coats of Belle de St. Claire, and two coats of Cerestore die spacers provided a 25 microns thickness. A single coat of the Dicor spacer resulted in a 37 microns layer. A significantly thinner layer occurred at the convex occlusal line angles for all of the materials tested. This could impede the flow of the luting agent at the time of cementation.
Harvard School of Dental Medicine, Boston, Mass.
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Campbell
D000537:Aluminum Oxide; D002516:Ceramics; D003442:Crowns; D003735:Dental Casting Technique / Q000295:instrumentation*; D003776:Dental Porcelain; D003779:Denture Design / Q000295:instrumentation*
C047475:Dicor ceramic; D003776:Dental Porcelain; C050798:cerestore; D000537:Aluminum Oxide