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논문 기본 정보

자료유형
학술저널
저자정보
Park Ju-Ha (Department of Conservative Dentistry School of Dentistry Jeonbuk National University Jeonju Korea.) Kim Hee-Jin (Department of Dentistry College of Medicine Kosin University Busan Korea.) Lee Kwang-Won (Department of Conservative Dentistry School of Dentistry Jeonbuk National University Jeonju Korea.Research Institute of Clinical Medicine of Jeonbuk National University Jeonju Korea.Biomedical Researc) Yu Mi-Kyung (Department of Conservative Dentistry School of Dentistry Jeonbuk National University Jeonju Korea.Research Institute of Clinical Medicine of Jeonbuk National University Jeonju Korea.Biomedical Researc) Min Kyung-San (Department of Conservative Dentistry School of Dentistry Jeonbuk National University Jeonju Korea.Research Institute of Clinical Medicine of Jeonbuk National University Jeonju Korea.Biomedical Researc)
저널정보
대한치과보존학회 Restorative Dentistry and Endodontics Restorative Dentistry and Endodontics 제48권 제1호
발행연도
2023.2
수록면
1 - 8 (8page)
DOI
10.5395/rde.2023.48.e8

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초록· 키워드

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Objectives This study was designed to evaluate the parameters of bonding performance to root dentin, including push-out bond strength and dentinal tubular biomineralization, of a hydraulic bioceramic root-end filling material premixed with dimethyl sulfoxide (Endocem MTA Premixed) in comparison to a conventional powder-liquid–type cement (ProRoot MTA). Materials and Methods The root canal of a single-rooted premolar was filled with either ProRoot MTA or Endocem MTA Premixed (n = 15). A slice of dentin was obtained from each root. Using the sliced specimen, the push-out bond strength was measured, and the failure pattern was observed under a stereomicroscope. The apical segment was divided into halves; the split surface was observed under a scanning electron microscope, and intratubular biomineralization was examined by observing the precipitates formed in the dentinal tubule. Then, the chemical characteristics of the precipitates were evaluated with energy-dispersive X-ray spectroscopic (EDS) analysis. The data were analyzed using the Student’s t-test followed by the Mann-Whitney U test (p < 0.05). Results No significant difference was found between the 2 tested groups in push-out bond strength, and cohesive failure was the predominant failure type. In both groups, flake-shaped precipitates were observed along dentinal tubules. The EDS analysis indicated that the mass percentage of calcium and phosphorus in the precipitate was similar to that found in hydroxyapatite. Conclusions Regarding bonding to root dentin, Endocem MTA Premixed may have potential for use as an acceptable root-end filling material.

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