Superior esthetics of all-ceramic restorations is based on the optical resemblance of natural tooth structure. Despite the constant improvements of optical and mechanical properties, glass-ceramic restorations are still limited to single-tooth restorations and under certain restrictions to short-span fixed partial dentures in the esthetic zone. With the introduction of CAD/CAM-fabricated partially stabilized zirconium dioxide (Y-TZP) ceramic frameworks, the long-term reliability of ceramics has significantly improved, facilitating the clinical use of fixed partial dentures in the posterior region. However, in certain applications the higher degree of opacity of Y-TZP is considered esthetically compromising. Different approaches were used to expand the range of indications and to improve the esthetic potential of Y-TZP fixed partial dentures. This lecture provides an update on treatment concepts with new all-ceramics, including material selection dependent on the individual situation, and presents the clinical long-term results of different systems.
Daniel Edelhoff, CDT, DMD, PhD, is associate professor for the Department of Prosthodontics and Dental Material Sciences at Ludwig-Maximilians University in Munich, Germany. He served as visiting professor at the Dental Clinical Research Center of the Oregon Health and Sciences University in Portland, Oregon from 1999 to 2001. He is a board-certified specialist in prosthodontics and a diplomate of the German Association of Oral Implantology. Dr Edelhoff has also published numerous clinical and research articles and scientific statements.