title: Comparison of glazed and polished dental porcelain.
abstract: Many ceramists advocate polishing, rather than glazing, to control the surface luster of metal ceramic restorations. There is concern that compared to a natural glaze, the polished surface might have inferior properties. This study compared apparent fracture toughness (Kc) and stainability of a commercially available metal ceramic system with either a glazed or polished surface finish. The indentation technique was used for Kc determinations and colorimetry measurements of specimens immersed in a coffee solution for staining. Higher fracture toughness values were found for the polished specimens. No differences were detected in the staining characteristics.
authors.forename: S F
authors.initials: SF
authors.lastname: Rosenstiel
authors.forename: M A
authors.initials: MA
authors.lastname: Baiker
authors.forename: W M
authors.initials: WM
authors.lastname: Johnston
mesh_terms: D003775:Dental Polishing; D003776:Dental Porcelain; D003799:Dental Stress Analysis; D013499:Surface Properties
chemical_list: D003776:Dental Porcelain