Comparison of the root-end seal provided by bioceramic repair cements and White MTA

Abstract

Leal F, De-Deus G, Brandã o C, Luna AS, Fidel SR, Souza EM. Comparison of the root-end seal provided by bioceramic repair cements and White MTA. International Endodontic Journal, 44, 662-668, 2011.Aim To compare the ability of Ceramicrete, BioAggregate and white ProRoot MTA (mineral trioxide aggregate) to prevent glucose leakage through root-end fillings. Methodology After root canal instrumentation, the apical 3 mm of maxillary incisors were resected and retropreparations, 3 mm in depth, were created with ultrasound. Root-end cavities were filled with the tested materials (15 roots per group). All roots were mounted in a double-chamber system to assess glucose penetration using 15 psi pressure application. After 1 h, glucose concentrations in the lower chamber were measured following an enzymatic reaction. Four roots were used as controls. One-way anova verified differences in glucose leakage between groups and Tukey test performed multiple comparisons. Significance was set at a = 5%. Results There was a significant difference between the three materials (anova, P < 0.05). Ceramicrete had significantly lower glucose penetration than BioAggregate (Tukey, P < 0.05). There was no difference between the two bioceramic cements and white MTA (P > 0.05). Conclusions Both endodontic bioceramic repair cements displayed similar leakage results to white MTA when used as root-end fillings materials. Ceramicrete had significantly lower glucose penetration.

Effect of Er,Cr:YSGG laser irradiation on apical sealing ability of calcium silicatecontaining endodontic materials in root-end cavities

“…Group 1 (EDTA/MTA) had higher sealing ability than Group 2 (EDTA/iRoot BP), and Group 3 (laser irradiation/MTA) had higher sealing ability than Group 4 (laser irradiation/iRoot BP). Consistent with the findings of previous studies 19,24) , our results based on fluid filtration method showed that iRoot BP did not provide a better seal than MTA.…”

“…Recent studies on calcium silicate-containing biomaterials showed that they yielded comparable results to MTA, and the authors also concluded that these biomaterials offered no apparent advantages over MTA 19,24) . In the present study, comparison of groups with the same smear layer removal method yielded the same results.…”

“…Sarkar et al 13) analyzed the interactions of MTA with a synthetic tissue fluid and root canal dentin, and suggested that MTA initially produced a mechanical seal. MTA then dissolved, leading to the formation of hydroxyapatite crystals which reacted with dentin to create a chemical adhesion 19) . Representative SEM images of Group 1 (EDTA/ MTA) and Group 2 (EDTA/iRoot BP) showed tag-like structures within the dentinal tubules just beneath the dentin-filling material interface.…”

“…Apical leakage remains a top-priority consideration when evaluating new root-end filling materials [17][18][19] . Thus, the objective of this study was to evaluate the in vitro apical sealing abilities of root-end cavities filled with MTA and iRoot BP cements at 4 weeks after treated with either 17% EDTA solution or Er,Cr:YSGG laser irradiation.…”

Potential sealing ability of a new propolis-based sealer used as apical plug compared to MTA

“…The glucose leakage test under pressure (experiment 1) is useful for quantitative evaluation, 19 has a high degree of specificity and sensitivity, 20,21 and overcomes most limitations observed in other leakage tests. 21 Furthermore, glucose is considered more relevant than others markers, due to its low molecular weight (180 g/mol).…”