Dimensional changes from the sintering process and fit of Y-TZP copings: Micro-CT analysis

Yttria-stabilized tetragonal zirconia (Y-TZP) is the most used polycrystalline ceramic for the purposes of prosthetic dentistry [1]. Y-TZP frameworks are made using CAD/CAM technology from the milling of pre-manufactured blocks. Commercially, these blocks are available in two different sintering stages: the pre-sintered and fully sintered stages [2]. In comparison with fully sintered blocks, pre-sintered blocks present the advantage of an easier and faster milling procedure and less wear of the machining tools [3].

Source: Dental Materials - September 19, 2017 Category: Materials Science Authors: Carlos Eduardo Edwards Rezende, Ana Fl ávia Sanches Borges, Rander Moreira Macedo, José Henrique Rubo, Jason Alan Griggs Source Type: research