Effect of the CAD-CAM and lost-wax framework fabrication techniques on the fracture strength of porcelain in metal-ceramic restorations
Gelareh Tajziehchi,
Homeira Ansari,
Kourosh Afshar
Abstract:Background. Ceramic fracture is a common problem in metal-ceramic restorations (MCRs). The advent of computer-aided design and computer-aided manufacturing (CAD-CAM) technology eliminated the lost-wax technique, which was responsible for many of the problems associated with framework fabrication. However, the role of the CAD-CAM technology in decreasing porcelain fracture is not yet known.Objectives. The aim of the present in vitro study was to compare the fracture strength of porcelain in MCRs with metal fram… Show more
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