This systematic review aimed to compare the efficiency of orifice barriers in preventing coronal microleakage in vitro.
Methods
Articles published in English, German and Chinese were searched for studies describing microleakage assays for the bacterial penetration of root canal-treated teeth in vitro. The final sample included 18 articles for review and meta-analysis. Risk ratios and confidence intervals were determined for dichotomous variables. Ten publications using bacterial leakage models contributed to the meta-analysis.
Results
The addition of orifice barriers to a root canal filling was overall effective, shown by risk ratios (RR) and 95% confidence intervals (CI) demonstrating reduced microleakage with glass ionomer cement (GIC) (RR 0.37, 95% CI 0.26–0.53, P < 0.001), resin-modified GIC (RR 0.32, 95% CI 0.15–0.67, P = 0.01), composite resin (RR 0.54, 95% CI 0.38–0.75, P < 0.001), mineral trioxide aggregate (MTA) (RR 0.25, 95% CI 0.12–0.52, P < 0.001) and Cavit (RR 0.23, 95% CI 0.14–0.39, P < 0.001). There were no significant differences between GIC, resin-modified GIC, composite resin and MTA orifice barriers.
期刊介绍:
The Australian Dental Journal provides a forum for the exchange of information about new and significant research in dentistry, promoting the discipline of dentistry in Australia and throughout the world. It comprises peer-reviewed research articles as its core material, supplemented by reviews, theoretical articles, special features and commentaries.