Resistência de união a diferentes cimentos como consequência dos tratamentos químicos e mecânicos na superfície da Zircônia em pilares de próteses fixas: uma revisão de literatura

Abstract

Due to the lack of a single protocol of cementation of fixed prostheses zirconia, a survey was made of the existing literature on virtual databases (Medline, Lilacs, PubMed) and physical (libraries), to verify the bond strength of different cements, conventional and resin, and pre treatment of prosthetic piece to achieve greater adherence to cement since regarding the resinous cement, zirconia still presents a critical problem. Due to this, different techniques of mechanical or chemical treatment of the surfaces of these ceramics are indicated in order that the surface treatment traditional dental porcelains, based on the application of hydrofluoric acid and a silane agent, did not improve the bond strength of the cements resin to the surfaces of zirconia. It was concluded that although this cementing ceramic can be done by conventional cements, they have advantages such as cementation resinous sealing ability, good retention and resistance to fracture and the previous treatment of the work piece surface, there is no clinically a procedure that has a meaningful outcome to improve adherence, only laboratory methods.