Purpose: This study evaluates the clinical behavior of ceramic inlays placed during the past decade.
Materials and methods: One hundred eighty-two inlays were examined in 66 patients. The interval between placement and assessment was on average 5.9 years +/- 2.7, ranging from 2 to 11.7 years. Restorations still present at the time of evaluation were clinically assessed according to modified USPHS criteria. Kaplan-Meier statistical analysis was used to assess the survival rate.
Results: According to USPHS criteria, good results were obtained for color match, marginal discoloration, recurrent caries, contour, and marginal integrity. Six inlays failed: four for endodontic reasons, one due to recurrent caries, and the other due to fracture. The results indicate that a success rate of 95% could be predicted at 11.5 years.
Conclusion: The lack of recurrent caries, the only slight changes in marginal discoloration and color match, combined with the excellent longevity prove that ceramic inlays are a valuable tool for the restoration of posterior teeth.