Open Access Online OnlyClinical SnapshotsDOI: 10.3238/dzz-int.2019.0057-0059Pages 57, Language: EnglishBehr, Michael / Proff, Peter / Rosentritt, MartinProven porcelain fused to metal restorations are increasingly being superceded by milled zirconia ones. Initially, in the 1960s the porcelain fused to metal crowns were quite resistant to abrasion which led to the "softer" opposing tooth showing significant signs of wear.
