ABSTRACT
Prosthetic dental crowns had been traditionally executed with ‘two-layers’: a metallic or ceramic framework vennered with a dental esthetic ceramic.
In the past few years, dental materials companies and dental technicians had been working in monolithic crowns, performed with only one ceramic layer, that in most of the cases could be feldspathic, litthium disilicate or zirconia. The selection of these materials is based on its mechanical properties and esthetic appearance, and depends on the application site in the oral cavity. On one hand, posterior teeth must withstand highest loads than anterior teeth. On the other hand, anterior teeth must present superior esthetics when compared to posterior teeth.
