The Clinical Performance of CAD/CAM-Generated Different Inlay/Onlay Materials: A One-Year Follow Up

Abstract

Objective: This study aimed to evaluate the clinical performances of four different CAD/CAM blocks with varying content and advantages. Methods: A single dentist performed inlay/onlay restorations using Lava Ultimate, IPS e.max CAD, Vita Mark II and Vita Enamic CAD/CAM blocks on 60 vital posterior teeth (n=15) of the patients enrolled in the study. The restorations were evaluated by two inter-comparison dentists (Cohen Kappa Index = 0.88) according to the modified USPHS criteria at 1 week, 6 months and 12 months. The data were statistically analyzed using SPSS 15.0. Cochran's Q test was used for within-group comparisons and the chi-squared test (χ2) for between-group comparisons. Results: The follow-up rate of the restorations at the end of 1 year was 100%. At the end of the follow-up period, all restorations were found to be clinically acceptable. There was no statistically significant difference between the clinical performance of the different CAD/CAM materials used (p>0.05). Conclusion: According to the results of this 1-year follow-up clinical study, inlay/onlay restorations fabricated with four different CAD/CAM blocks showed similar clinical performance.