The Journal of the American Dental Association
The Clinical Success Of All-Ceramic Restorations
Section snippets
VENEER RESTORATIONS
Ceramics are particularly well-suited for veneer restorations, which have failure rates, including loss of retention or fracture, of less than 5 percent at five years.4,5 In one of the earliest clinical studies, which examined 83 veneers (IPS Empress, Ivoclar Vivadent, Amherst, N.Y. [now IPS Empress Esthetic Veneer]), the authors reported a success rate of 98.8 percent after six years.6 Two recent reports on feldspathic porcelain veneers (n = 3,047 and n = 1,828) showed similar long-term
INLAY AND ONLAY RESTORATIONS
Some of the most extensively studied ceramics in dentistry are used for inlay and onlay restorations; they are made of feldspathic ceramic (Vitablocs Mark I and II, Vita Zahnfabrik, Bad Säckingen, Germany) or mica-filled glass-ceramic (Dicor, Dentsply, York, Pa. [no longer on the market]) by using the CEREC computer-aided design/computer-aided manufacturing (CAD/CAM) system (Sirona Dental Systems GmbH, Bensheim, Germany).9, 10, 11, 12, 13, 14 Another widely studied ceramic is the hot-pressed
SINGLE-UNIT CROWNS
As expected, the first all-ceramic systems to appear on the market have received the most attention in the peer-reviewed literature. These systems are leucite-reinforced glass-ceramic (IPS Empress), glass-infiltrated ceramics (In-Ceram Alumina and In-Ceram Spinell, Vita Zahnfabrik) and polycrystalline alumina (Procera Alumina, Nobel Biocare, Göteborg, Sweden). Despite the differences in their microstructure, composition, processing methods and intraoral area (anterior or posterior), most
MULTIUNIT PROSTHESES
Two manufacturers have recommended their all-ceramic systems for anterior three-unit pros-theses: a glass-infiltrated alumina (In-Ceram Alumina) and a lithium disilicate–based glass-ceramic (IPS Empress 2 [now IPS e.max Press]).3 Some clinical studies also reported using In-Ceram Alumina for fixed partial dentures (FPDs) involving posterior teeth (Table 219,20,40,41,45, 46, 47, 48, 49, 50, 51). In a three-year study of 61 three-unit FPDs (In-Ceram Alumina), Sorensen and colleagues45 reported
CONCLUSIONS
In this review, we presented current evidence suggesting that all-ceramic restorations have an acceptable clinical longevity that accompanies their long-lasting esthetic advantages. Evidence from many clinical studies suggests that clinicians may choose from any all-ceramic system on the basis of patients' esthetic needs for veneers, intracoronal restorations and full-coverage restorations for single-rooted anterior teeth. Only a few systems have been successful for the restoration of molars,
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Cited by (0)
Disclosure. Dr. Kelly has served as a consultant for and received research funding from Ivoclar Vivadent, Amherst, N.Y., and Vita Zahnfabrik, Bad Säckingen, Germany. Dr. Della Bona did not report any disclosures.
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Dr. Kelly is a professor, Department of Reconstructive Sciences, University of Connecticut Health Center, Farmington. He also is the guest editor of this supplement.