An evaluation of the fit of porcelain inlays

The effect of die spacer usage and three different porcelain build up techniques on inlay fit were investigated by impression wash methods and image analysis of sectioned replicas. All inlays were produced on machined cavities. Data from the impression wash technique indicated a mean misfit value of just over 100 microns. Image analysis showed a smaller mean misfit of 40-60 microns. In general, the use of die spacer resulted in a poorer fit and there were no significant differences between methods of porcelain application detected by either method.