Abstract: Objective To evaluate the effectiveness of sodium hypochlorite in heightening the shear bond strength of enamel by Meta-analysis. Methods The Cochrane Library, PubMed, CBM, CNKI, WanFang Data, VIP databases from inception to September 30th, 2017, were searched to collect relative studies on the influence of deproteinization of sodium hypochlorite on shear bond strength of enamel. Two reviewers independently screened the search results,extracted data and assessed the risk of bias of included studies. Then Meta-analysis was performed using RevMan5.3 software，while Stata 12.0 was used to valuate publication bias. Results A total of 10 studies were included, involving 179 teeth in treated and control groups respectively. The result of Meta-analysis showed that the pooled-MD and 95%CI for continuous variations were 3.86 and 3.06-4.66 respectively. Conclusion Treatment of tooth surface with sodium hypochlorite can significantly improve the shear strength of enamel.

Key words: sodium hypochlorite, deproteinization, shear bond strength, enamel, Metaanalysis