In today's society, having a dental restoration that provides minimal post-operative sensitivity is only part of the demand from patients. There is an increasing expectation for esthetic, "life-like" restorations that simulate if not replicate the natural tooth. This is complicated especially in patients with heavy occlusion or are missing teeth. The development of CAD/CAM milling technologies has laid the groundwork for use of high strength heat-pressed zirconia [tetragonal zirconia polycrystals (TZP) a yttrium partially stabilized polycrystal structure] as a supporting framework for supporting an esthetic, "life-like" Lucite-base veneering ceramic material to provide an all ceramic form of full coverage dental restorations for individual teeth or replacement of a single missing tooth with a 3-united fixed partial denture ("dental bridge"). The use of press porcelain crown technology has allowed the improvement of fit of refractory die porcelain crown fabrication relative to conventional Pt foil techniques and may lead to greater predictability and reduced microleakage (with enhanced service life of the dental restoration). The potential for an enhanced service life may depend on a combination of silination with a bifunctional bis-GMA primer and dual cured composite resin luting agent which may seal microcracks within the intaglio surface of the porcelain and a sufficient bond to tooth structure for a reasonable service life.