Fig. 2

A second molar in the mandible of a 35-year-old male received root canal treatment (a) and was prepared with the principles of the ceramic full cusp coverage restoration (b). The restoration was placed and determined to be successful according to FDI criteria (c-d). However, the restoration and tooth were both fractured in a 6-month recall assessment (e-f). The restoration was removed and replaced by a ceramic crown