Clinical Significance
The survival of tooth-colored, partial-coverage restorations for up to 10 years is high regardless of the
Tooth-colored, partial-coverage restorations are in high demand because they conserve the healthy tooth structure and promote reinforcement of the tooth that has been compromised by caries or fractures. Many resin and ceramic materials are available to make these inlays, onlays, and overlays. Durability in posterior locations is largely determined by the material’s mechanical strength. Resin composite fabrication is based on chemical, heat, or photopolymerization methods or milling procedures
Two reviewers searched the PubMed, EMBASE, and Cochrane Central Register of Controlled Trials for articles published from 1983 until the end of April 2015 that met the guidelines for systematic reviews. The studies had to relate to resin and ceramic inlays, onlays, and overlays; evaluate their use in humans; have a dropout rate under 30%; and have a follow-up longer than 5 years. Fourteen studies met the inclusion criteria and were subjected to analysis.
No meta-analysis was done for the resin group because none of the studies could be selected for data collection. Of the ceramics group, 6 studies used feldspathic porcelain and 5 used glass-ceramics, with 3 using both materials. Meta-regression analysis showed no relationship between type of ceramic and survival rates at either 5 or 10 years. Feldspathic porcelain and glass-ceramic materials had survival rates between 92% and 95% at 5 years, with 91% at 10 years.
Factors considered as possibly
The survival data indicate a high rate of survival and did not differ significantly with respect to type of restoration material used. All types of restorations failed most often as a result of fractures or chipping. The rates of survival were not as robust for endodontically treated teeth. More research into techniques, cavity preparations, and materials is needed. Clinical Significance The survival of tooth-colored, partial-coverage restorations for up to 10 years is high regardless of the
Morimoto S, Rebello de Sampaio FBW, Braga MM, et al: Survival rate of resin and ceramic inlays, onlays, and overlays: A systematic review and meta-analysis. J Dent Res 95:985-994, 2016
Reprints available from M Özcan, Ctr for Dental and Oral Medicine, Dental Materials Unit, Clinic for Fixed and Removable Prosthodontics and Dental Materials Science, Univ of Zurich, Plattenstrasse 11, CH-8032 Zurich, Switzerland; e-mail: [email protected]