Metal Free Ceramics in Dentistry: A Review

The demand for metal free ceramics with highly biocompatible dental restorative material has increased during the past decade. The esthetic demands made on dental restorations has resulted in an increased use of dental ceramics. For meeting the requirements of dental materials with improved strength and toughness, various new ceramic materials as well as new techniques have been developed during the past decade. These recent developments have attempted to overcome the principal disadvantages of inherent brittleness and the potential to abrade the opposing dentition by either the use of increasingly complex technology or by the simplification of existing techniques and/ or materials. This review outlines the developments in the evolution of metal free ceramics over the last century and their classification.