CLINICAL EVALUATION OF THE AESTHETIC PERFORMANCE OF ORGANICALLY MODIFIED CERAMICS (ORMOCERS), NANOHYBRID, AND MICROHYBRID COMPOSITE IN CARIOUS PERMANENT POSTERIOR TEETH RESTORATIONS IN A NIGERIAN POPULATION.

Abstract

Purpose: To evaluate the aesthetic clinical performance of an ormocer and a nanohybrid composite compared with a traditional microhybrid composite in carious posterior tooth restorations.

Materials and Methods: This was a randomized clinical trial. Patients with three carious lesions requiring replacement (GV Black’s classification of Class I and/or Class II), each with an opposing tooth, were recruited. A total of 105 restorations were placed, with each material accounting for 35: an ormocer-based composite, a nanohybrid resin composite, and a microhybrid resin composite. The same operator restored all cavities with the different materials according to the manufacturer’s instructions, and restorations were finished and polished one week after placement.

Results: The female-to-male ratio was 4.8:1, and the subject recall rate was 100%. All ormocer, nanohybrid, and microhybrid restorations recorded 100% clinically excellent scores from baseline to 3 months for all parameters. The majority of restorations maintained clinically excellent scores from 1 month to 12 months. There were no records of scores 3, 4, or 5 for any of the test materials throughout the study. Statistically significant differences were observed in the anatomic form and tooth integrity of nanohybrid restorations compared with microhybrid restorations. Microhybrid restorations recorded statistically significant differences in colour stability and tooth integrity (p < 0.05).

Conclusion: The clinical performance of Admira (VOCO) ormocer, Tetric EvoCeram (Ivoclar Vivadent) nanohybrid, and Tetric Ceram (Excite) microhybrid composites was satisfactory in the restoration of carious posterior permanent teeth.