KOMET’s ZR-Diamonds Series ZR 943 bur
March 21, 2012
Zirconia is a wonderful restorative material with superior strength and esthetics. During the past 10 years, labs and dentists have increasingly incorporated zirconium crowns into their practices. But as tough as these crowns are, failure can occur, particularly because many labs didn’t follow protocol in producing the first zirconium-porcelain crowns. Unfortunately, the strength that makes a zirconium crown such an attractive option also makes it very difficult to remove with a conventional bur. The scenario