Comparación in vitro de la resistencia al cizallamiento entre la cementación no adhesiva de disilicato de litio a óxido de zirconio y la cementación adhesiva de disilicato de litio a una cerámica híbrida, usando cemento resinoso dual

Abstract

Currently dentistry seeks restorations with stable, functional, aesthetic and biocompatible materials. The aesthetic demands have led professionals to opt for the use of metal-free prosthetic designs; this evolution in the ceramic systems has come to consider the change of the metallic structures on which the porcelain is applied by completely ceramic structures, which also have high resistance to flexion and compression, even in areas subject to masticatory forces. Assessing the shear strength of these materials helps us establish the necessary load to produce a fracture at the joint interface when applying parallel forces in the opposite direction. The tangential forces of sliding or shearing are present throughout the physiology of the stomatognathic system, currently they have been little used, but a strong tendency to use them is generated as an ideal test to study the strength of the union between materials.