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The use of all-ceramic crowns is increasing, and this trend will continue in future too. However, all ceramic systems are not same. They differ considerably in their relative esthetic potential, their physical properties and evidence base relative to longevity. The use of an all-ceramic system does not guarantee outstanding esthetics. Some all-ceramic systems can provide superior esthetic results compared with metal-ceramic restorations. Zirconia-cored crowns are the strongest all ceramic system and may provide improved esthetic results compared with metal-ceramic crowns. Not all ceramic restorations have been shown to have a life span equivalent to that of metal-ceramic restorations. Clinicians should choose appropriate all-ceramic restorations on the basis of their patients’ needs. Currently available evidence indicates that clinicians should not use all-ceramic crowns on molars; in addition, posterior fixed partial prostheses fabricated with all-ceramic materials have a high likelihood of failure. Further clinical trials are needed.

All ceramic restoration, Esthetic potential, Transformation toughening, Zirconia-cored restorations