The long-term results of teeth restoration with composite resin materials: a systematic literature review

Abstract

To evaluate by means of a systematic review the survival rate of composite resin restorations in the long-term period and the main factors, affecting the quality of restorations. An electronic search was performed in eLIBRARY.RU, PubMed/MEDLINE and Scopus. Restriction period was 2007-2017 years. The eligibility criteria included randomized controlled trials, controlled clinical trials and prospective and retrospective cohort studies with at least 3 years of follow-up. The initial search resulted in 328 articles after an initial assessment and careful reading, 17 studies were included in this review. The overall survival rate of composite restorations was 90.7% after 3 years, 89.5% after 5 years, 89.3% after 7 years and 75.6% after 10 years. The highest loss rate was for class II restorations at molars. However there was not enough information about class III and IV restorations and direct veneers. According to majority of publications, type of composite resin material and adhesive system do not affect the survival rate of restorations. The main risk factors of failure are smoking, beverages consumption, bruxism, xerostomia and low level of caries resistance. The results of this review suggest that composite resin restorations can demonstrate clinically acceptable results in the long-term period. In case of compliance with treatment protocol the longevity of composite resin restoration is more than 15 years.