Comparison of Failure between Glass-lonomer Cement and Resin Composite in Class II Restorations in Primary Teeth: A Systematic Review and Meta-analysis
Keywords:
Class II primary tooth restorations, Resin composite, Conventional glass ionomer, Resin-modified glass-ionomer, FailureAbstract
Background: Class II restorations in primary teeth can be performed using tooth-colored restorative materials, including resin composite and glass-ionomer cement. As these two materials have different advantages and disadvantages, the study of restoration failure following the use of each material plays an important role in clinical decision-making. Objective: To compare restoration failure between glass-ionomer cement and resin composite in Class Il restorations in primary teeth. Method: A systematic search of relevant studies was conducted using PubMed, Google Scholar, and open-access sources, together with manual searching. Articles published in English and Thai between 1992 and 2022 were included, and 11 eligible studies were analyzed in a meta-analysis of the likelihood of restoration failure. Results: Glass-ionomer cement showed a 1.186-fold higher likelihood of failure than resin composite, with no statistically significant difference (p = .385; 95% CI: 0.807, 1.742). Conventional glass-ionomer cement (CGI) and resin-modified glass-ionomer cement (RMGI) demonstrated 1.818-fold and 0.955-fold likelihoods of restoration failure, respectively, compared with resin composite in Class II primary tooth restorations. These differences were not statistically significant (p = .082; 95% CI: 0.926, 3.571 and p = .850; 95% CI: 0.593, 1.537). Conclusion: There was no difference in the likelihood of failure between glass-ionomer cement and resin composite in Class II primary tooth restorations. Conventional glass-ionomer cement showed a higher likelihood of failure than resin-modified glass-ionomer cement; however, this difference was not statistically significant when compared with resin composite. The results of this study suggest that further high-quality studies are required.
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