Push-out bond strength and marginal adaptation of apical plugs with bioactive endodontic cements in simulated immature teeth
de Sá, Maria Aparecida Barbosa, Nunes, Eduardo, Antunes, Alberto Nogueira da Gama, Brito Júnior, Manoel, Horta, Martinho Campolina Rebello, Rodrigues Amaral, Rodrigo, Cohen, Stephen, and Silveira, Frank Ferreira (2021) Push-out bond strength and marginal adaptation of apical plugs with bioactive endodontic cements in simulated immature teeth. Restorative Dentistry & Endodontics, 46 (4). e53.
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Abstract
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.
Item ID: | 76161 |
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Item Type: | Article (Research - C1) |
ISSN: | 2234-7658 |
Keywords: | Apexification; Calcium Silicate Materials; Marginal Adaptation; Mineral Trioxide Aggregate; Push-out Bond Strength; Scanning Electron Microscopy |
Copyright Information: | © 2021. The Korean Academy of Conservative Dentistry. This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (https://creativecommons.org/licenses/by-nc/4.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. |
Date Deposited: | 11 Oct 2022 01:51 |
FoR Codes: | 32 BIOMEDICAL AND CLINICAL SCIENCES > 3203 Dentistry > 320302 Dental materials and equipment @ 50% 32 BIOMEDICAL AND CLINICAL SCIENCES > 3203 Dentistry > 320304 Endodontics @ 50% |
SEO Codes: | 20 HEALTH > 2099 Other health > 209999 Other health not elsewhere classified @ 100% |
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