Prevalencia de fracasos en restauraciones directas clase ll semestre A-B 2016. UCSG médicas.

Abstract

Introduction: composite resins for class II posterior restorations allow us to recover the functions and morphology of dental structures affected by interproximal carious lesions, one of the main factors that makes composite resin restorations deficient is polymerization contraction and stress they submit. In Class II restorations it is important to use an adequate surgical technique and restorative material, if the restorations do not offer a correct marginal seal they will be affected causing several problems in the future. The purpose of this study was to determine the prevalence of failures in Class II direct restorations in patients who underwent restorative dental treatments. Materials and methods: descriptive, cross-sectional and prospective study. We studied 107 patients who underwent a clinical and radiographic examination on teeth that presented class II restorations, obtaining a sample of 158 restored teeth, the respective tabulation was done, classifying the restored dental pieces by quadrants. Results: Of 158 teeth with class II composite resin restorations evaluated clinically and radiographically, 106 restorations (67%) were considered as failure. Discussion: This research demonstrates that there is a high prevalence of failures in class ll direct restorations, but there is also some relevance with other authors whose results were contrary.