T T Fröhlich1, L D Gindri1, F Z M Soares2, R de Oliveira Rocha3. 1. Dental Science Graduate Program, Federal University of Santa Maria, Santa Maria, RS, Brazil. 2. Department of Restorative Dentistry, Federal University of Santa Maria, Santa Maria, RS, Brazil. 3. Department of Stomatology, Federal University of Santa Maria, Cidade Universitária, Av. Roraima, 1000 Prédio 26 F, Santa Maria, RS, Brazil. rachelrocha@smail.ufsm.br.
Abstract
PURPOSE: To assess through a systematic review and meta-analysis of in vitro studies, the influence of the etching strategy (etch-and-rinse versus self-etch) of universal adhesive systems on bonding to primary teeth. METHODS: A systematic search was carried out in PubMed, Web of Science and Scopus. In vitro studies that compared the bond strength of the etching strategies of universal adhesives to primary teeth were included. Pooled-effect estimates were derived from a random-effects model by comparing the standardized mean difference between the etching strategies (α < 0.05). The risk of bias and heterogeneity between studies were also assessed (Cochrane and I2 tests). RESULTS: Seven studies were included in the review and six in the meta-analyses. For dentin, the immediate bond strength was not influenced by the etching strategy regardless of sound (Z = 0.72, p = 0.47) or caries-affected (Z = 1.27, p = 0.21) substrate, nor after aging (Z = 0.24, p = 0.81). It was not possible to perform a meta-analysis for the enamel substrate. Most studies have a medium risk of bias. CONCLUSIONS: This systematic review and meta-analysis of in vitro studies provides evidence that universal adhesives can be used in both etching strategies in primary dentin. The evidence is currently insufficient about whether selective acid etching of primary enamel is necessary when universal adhesive systems are used.
PURPOSE: To assess through a systematic review and meta-analysis of in vitro studies, the influence of the etching strategy (etch-and-rinse versus self-etch) of universal adhesive systems on bonding to primary teeth. METHODS: A systematic search was carried out in PubMed, Web of Science and Scopus. In vitro studies that compared the bond strength of the etching strategies of universal adhesives to primary teeth were included. Pooled-effect estimates were derived from a random-effects model by comparing the standardized mean difference between the etching strategies (α < 0.05). The risk of bias and heterogeneity between studies were also assessed (Cochrane and I2 tests). RESULTS: Seven studies were included in the review and six in the meta-analyses. For dentin, the immediate bond strength was not influenced by the etching strategy regardless of sound (Z = 0.72, p = 0.47) or caries-affected (Z = 1.27, p = 0.21) substrate, nor after aging (Z = 0.24, p = 0.81). It was not possible to perform a meta-analysis for the enamel substrate. Most studies have a medium risk of bias. CONCLUSIONS: This systematic review and meta-analysis of in vitro studies provides evidence that universal adhesives can be used in both etching strategies in primary dentin. The evidence is currently insufficient about whether selective acid etching of primary enamel is necessary when universal adhesive systems are used.
Authors: Laura Teixeira Mendes; Bas A C Loomans; Niek J M Opdam; Carolina Lopes da Silva; Luciano Casagrande; Tathiane Larissa Lenzi Journal: J Adhes Dent Date: 2020 Impact factor: 2.359
Authors: Carlos Enrique Cuevas-Suárez; Wellington Luiz de Oliveira da Rosa; Rafael Guerra Lund; Adriana Fernandes da Silva; Evandro Piva Journal: J Adhes Dent Date: 2019 Impact factor: 2.359