Abstract
Due to the high incidence of chipping on veneered Yttria Tetragonal Zirconia Polycrystal (Y-TZP), authors began to use the edge chipping test to evaluate dental ceramics, checking the influence of framework materials (metal or zirconia) in the failure of veneering porcelain. However the test showed to be inefficient, probably because the bar format specimen does not reproduce thermal stre…