Efeito do condicionamento do esmalte previamente a aplicação de sistemas adesivos autocondicionantes em restaurações de lesões cervicais não-cariosas: revisão sistemática e meta-análise

Abstract

The objective of this study was to identify through a systematic review and metaanalysis if selective etching of enamel margins, prior to the application of self-etching adhesive systems, improves the retention rates marginal discoloration and marginal adaptation of cervical composite restorations in non-carious cervical lesions (NCCLs) of adult patients. The following databases were searched for MEDLINE, Scopus, Web of Science, LILACS, BBO Library, Cochrane Library and SIGLE were searched without restrictions, as well as IADR abstracts and gray literature via trial registries. Dissertations and theses were searched using the ProQuest Dissertations and Periodical Capes. Randomized clinical trials comparing the clinical efficacy of selfetching adhesives with and without selective enamel etching used for direct composite resin restorations on NCCLs in the permanent dentition were included. For evaluate the quality of the studies, the bias risk tool Cochrane Collaboration, was used. After removal of duplicates, 2689 articles were identified. Following screening of abstracts, 10 studies remained in the qualitative synthesis. Seven were considered to be at “low” risk of bias. The report of the studies varied from 1 to 5 years. Except for one-year follow-up, there was a significantly lower marginal discoloration and adaptation during all follow-up periods. In addition, a significantly lower loss of retention was observed for the 3-year follow-up restorations for the group that used selective enamel conditioning. Selective enamel prior to application of self-etch adhesive systems in NCCLs might improve clinical performance of resin-composite cervical restorations, in up to 5 years of follow-up.