Abstract:

the aim of present study was compared Failure Rates between occlusal and occlusoproximal amalgam and composite resin of posterior restorations. From the electronic databases, PubMed, Scopus, LILACS, Web of Science, EBSCO, LIVIVO, and Embase have been used to perform a systematic literature over the last 20 years between 2001 and September 2021. Risk ratio with 95% confidence interval, fixed effect model and Mantel-Haenszel method were calculated. The Meta analysis have been evaluated with the statistical software Stata/MP v.16 (The fastest version of Stata). 113 studies were selected to review the abstracts, the full text of 19 studies was reviewed. Finally, five studies were selected. Risk ratio of restoration failure rate and secondary caries between amalgam and composite resin was 0.14 (RR, 0.14 95 % CI 0.10, 0.17; p=0.00) and 0.15 (RR, 0.15 95 % CI 0.11, 0.18; p=0.00), respectively. Composite resin significantly increased the risk of restoration failure and secondary caries. meta-analysis showed that the failure rate in composite resin restorations is higher than amalgam in the restoration of posterior teeth. Present study suggested that amalgam was better than composite resin restorations. More RCT studies are needed to provide sufficient and stronger evidence.

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