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논문 기본 정보

자료유형
학술저널
저자정보
de Sá Maria Aparecida Barbosa (Department of Dentistry Pontifical Catholic University of Minas Gerais Belo Horizonte Minas Gerais) Nunes Eduardo (Department of Dentistry Pontifical Catholic University of Minas Gerais Belo Horizonte Minas Gerais) Antunes Alberto Nogueira da Gama (Department of Dentistry Pontifical Catholic University of Minas Gerais Belo Horizonte Minas Gerais) Brito Júnior Manoel (Department Dentistry Montes Claros Minas Gerais Brazil.) Horta Martinho Campolina Rebello (Department of Dentistry Pontifical Catholic University of Minas Gerais Belo Horizonte Minas Gerais) Amaral Rodrigo Rodrigues (Department of Dentistry Pontifical Catholic University of Minas Gerais Belo Horizonte Minas Gerais) Cohen Stephen (Department of Endodontics Arthur School of Dentistry University of the Pacific San Francisco CA USA) Silveira Frank Ferreira (Department of Dentistry Pontifical Catholic University of Minas Gerais Belo Horizonte Minas Gerais)
저널정보
대한치과보존학회 Restorative Dentistry and Endodontics Restorative Dentistry and Endodontics 제46권 제4호
발행연도
2021.11
수록면
1 - 11 (11page)
DOI
10.5395/rde.2021.46.e53

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Objectives: This study evaluates the bond strength and marginal adaptation of mineral trioxide aggregate (MTA) Repair HP and Biodentine used as apical plugs; MTA was used as reference material for comparison. Materials and Methods: A total of 30 single-rooted teeth with standardized, artificially created open apices were randomly divided into 3 groups (n = 10 per group), according to the material used to form 6-mm-thick apical plugs: group 1 (MTA Repair HP); group 2 (Biodentine); and group 3 (white MTA). Subsequently, the specimens were transversely sectioned to obtain 2 (cervical and apical) 2.5-mm-thick slices per root. Epoxy resin replicas were observed under a scanning electron microscope to measure the gap size at the material/dentin interface (the largest and smaller gaps were recorded for each replica). The bond strength of the investigated materials to dentin was determined using the push-out test. The variable bond strengths and gap sizes were evaluated independently at the apical and cervical root dentin slices. Data were analyzed using descriptive and analytic statistics. Results: The comparison between the groups regarding the variables' bond strengths and gap sizes showed no statistical difference (p > 0.05) except for a single difference in the smallest gap at the cervical root dentin slice, which was higher in group 3 than in group 1 (p < 0.05). Conclusions: The bond strength and marginal adaptation to root canal walls of MTA HP and Biodentine cement were comparable to white MTA.

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