Saliva leakage comparison of Pro Root MTA, CEM (Calcium Enriched Mixture), amalgam and composite as in intraorifice sealing material

Abstract

Insufficient coronal seal is the main and possibly the most controllable reason of endodontic treatments failures. CEM (Calcium Enriched Mixture) is a new endodontic material consisting of different calcium compounds. The aim of this study is to compare bacterial microleakage of Pro Root MTA, CEM (Calcium Enriched Mixture), amalgam and composite as an intraorifice sealing material. Materials and Methods: 70 single-rooted mandibular premolar teeth were selected. Teeth were randomly divided to 4 experimental groups: Pro Root MTA, Amalgam, flowable composite and CEM Cement (15 teeth each) and 2 control groups (5 teeth each). After decoronation, root canal treatment was done and after emptying 2mm of gutta percha one of these materials was placed as an intraorifice barrier. Saliva leakage was assessd. All statistical evaluations were done using SPSS 15.0.0 software using one-way ANOVA analysis and Tukey comparisons. In this study P<0.05 was considered significant. Results: The average bacterial leakage time for amalgam, composite, MTA and CEM Cement were 27.423.6, 29.353.15, 52.572.87 and 50.422.73 days respectively. Negative control group showed no leakage until the end of assessment while the average microleakage time in positive group was after 3.5 days. CEM and MTA showed similar sealing properties (P=0.27). Amalgam and composite also showed similar sealing properties (P=0.36). Also MTA with CEM and amalgam with composite differed significantly (P< 0.001). Conclusion: It was concluded that use of Pro ROOT MTA and CEM Cement are preferable in providing coronal seal in endodontically treated teeth. Based on the results of this research it can be concluded that CEM Cement and MTA are more successful than amalgam and composite in preventing saliva leakage.