Clinical evaluation of restorations with self-etch adhesive and nanofilled composite in class I and class II cavities.

INTRODUCTION: In the era of adhesive restorative dentistry the principles of conventional cavity preparation have acquired a new meaning. The emphasis is shifted from "widening for preventive purposes" and preparation of macro-mechanical retention to "consciously limited" preparation. The clinical and biological durability of restorations depends on the adhesive bond and the quality of the composite material. OBJECTIVE: The aim of the study was to conduct a clinical evaluation of restorations with a self-etch single-step adhesive and nanofilled composite in class I and class II cavities over a period of 15 months. PATIENTS AND METHODS: The clinical trial involved 34 patient (volunteers) who received 76 posterior restorations of medium and deep cavities with the self-etch adhesive Adper Prompt L-Pop and nanofilled composite Filtek Supreme (3MESPE Dental products USA). All restorations were evaluated by the modified Ryge and Cvar criteria at 6- and 15-month intervals. RESULTS: Loss of restorations with a self-etch single-step adhesive and nanofilled composite at 6 months and 15 months was 0% and 6.7%, respectively. The evaluation of discolouration in the restorations at 6 months revealed no significant changes (P > 0.05, u = 1.72). There was certain deterioration in the colour at 15 months (P 0.05, u = 0.36). There were no C (Charlie) scores recorded during the 15-month follow-up study within the continuing observation. CONCLUSION: The restorations with nanofilled composite and self-etch single-step adhesive fulfill the requirements for clinical use in posterior restorations.