Comparison of fracture strength and failure mode of different ceramic implant abutments

Statement of problem The whitish color of zirconia (ZrO2) abutments offers favorable esthetics compared with the grayish color of titanium (Ti) abutments. Nonetheless, ZrO2 has greater opacity, making it difficult to achieve natural tooth color. Therefore, lithium disilicate (LaT) abutments have been suggested to replace metal abutments. Purpose The purpose of this in vitro study was to evaluate the fracture strength and failure mode of...