Emmanuel João Nogueira Leal Silva1, Nancy Kudsi Carvalho2, Marta Reis da Costa Labanca Guberman3, Marina Prado2, Plinio Mendes Senna3, Erick M Souza4, Gustavo De-Deus5. 1. Department of Endodontics, School of Dentistry, Grande Rio University, Rio de Janeiro, Rio de Janeiro, Brazil. Electronic address: nogueiraemmanuel@hotmail.com. 2. Department of Endodontics, Rio de Janeiro State University, Rio de Janeiro, Rio de Janeiro, Brazil. 3. Department of Endodontics, School of Dentistry, Grande Rio University, Rio de Janeiro, Rio de Janeiro, Brazil. 4. Department of Restorative Dentistry II, Federal University of Maranhão, São Luis, Maranhão, Brazil. 5. Deparment of Endodontics, School of Dentistry, Fluminense Federal University, Niterói, Rio de Janeiro, Brazil.
Abstract
INTRODUCTION: The present study investigated the root canal dentin bond strength of 2 newly developed fast-setting mineral trioxide aggregate (MTA) and pozzolan-based cements: ENDOCEM MTA (Maruchi, Wonju, Korea) and ENDOCEM Zr (Maruchi). White MTA (Angelus, Londrina, Brazil) was used as the reference material for comparison. METHODS: Root slices (1 mm ± 0.1 mm) were obtained from the middle third of 15 maxillary incisors previously selected. Three canal-like holes (0.8 diameter) were drilled perpendicularly on the axial surface of each root slice. A standardized irrigation protocol was applied for all samples, and after drying, each hole was filled with 1 of 3 test repair materials. Finally, slices were stored in contact with phosphate-buffered saline solution (pH = 7.2) for 7 days at 37°C before the push-out assay. Data were nonparametrically evaluated at α = 5%. RESULTS: The Friedman test was unable to confirm a significant dissimilarity in push-out ranks among the tested cements (P = .220). CONCLUSIONS: The new fast-setting MTA and pozzolan-based cements ENDOCEM MTA and ENDOCEM Zr present suitable bond strength performance, which is comparable with white MTA.
INTRODUCTION: The present study investigated the root canal dentin bond strength of 2 newly developed fast-setting mineral trioxide aggregate (MTA) and pozzolan-based cements: ENDOCEM MTA (Maruchi, Wonju, Korea) and ENDOCEM Zr (Maruchi). White MTA (Angelus, Londrina, Brazil) was used as the reference material for comparison. METHODS: Root slices (1 mm ± 0.1 mm) were obtained from the middle third of 15 maxillary incisors previously selected. Three canal-like holes (0.8 diameter) were drilled perpendicularly on the axial surface of each root slice. A standardized irrigation protocol was applied for all samples, and after drying, each hole was filled with 1 of 3 test repair materials. Finally, slices were stored in contact with phosphate-buffered saline solution (pH = 7.2) for 7 days at 37°C before the push-out assay. Data were nonparametrically evaluated at α = 5%. RESULTS: The Friedman test was unable to confirm a significant dissimilarity in push-out ranks among the tested cements (P = .220). CONCLUSIONS: The new fast-setting MTA and pozzolan-based cements ENDOCEM MTA and ENDOCEM Zr present suitable bond strength performance, which is comparable with white MTA.
Authors: Mar Collado-González; Sergio López-García; David García-Bernal; Ricardo E Oñate-Sánchez; Christopher J Tomás-Catalá; Jose M Moraleda; Adrián Lozano; Leopoldo Forner; Francisco J Rodríguez-Lozano Journal: Clin Oral Investig Date: 2019-01-25 Impact factor: 3.573