The use of porcelain inlays, instead of composite resin, as a restorative material for posterior teeth has greatly improved the standards of esthetic dentistry. The development of compatible materials enables the fabrication of all-ceramic restorations on refractory investment material without expensive technical equipment. Special care in and knowledge of this new technique by the dentist and the technician are necessary to obtain restorations with excellent marginal adaptation and a highly esthetic appearance.