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논문 기본 정보

자료유형
학술저널
저자정보
Ismail Hoda Saleh (Conservative Dentistry Department, Faculty of Dentistry, Mansoura University, Mansoura, Egypt.Department of Bioscience Research, College of Dentistry, University of Tennessee Health Science) Morrow Brian Ray (Department of Bioscience Research, College of Dentistry, University of Tennessee Health Science Center, Memphis, TN, USA.) Ali Ashraf Ibrahim (Conservative Dentistry Department, Faculty of Dentistry, Mansoura University, Mansoura, Egypt.) Mehesen Rabab Elsayed Elaraby (Conservative Dentistry Department, Faculty of Dentistry, Mansoura University, Mansoura, Egypt.) Mahmoud Salah Hasab (Conservative Dentistry Department, Faculty of Dentistry, Mansoura University, Mansoura, Egypt.) Garcia-Godoy Franklin (Department of Bioscience Research, College of Dentistry, University of Tennessee Health Science Center, Memphis, TN, USA.The Forsyth Institute, Cambridge, MA, USA.)
저널정보
대한치과보존학회 Restorative Dentistry and Endodontics Restorative Dentistry and Endodontics Vol.49 No.1
발행연도
2024.2
수록면
1 - 16 (16page)
DOI
10.5395/rde.2024.49.e6

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Objectives This study aimed to investigate the elemental analysis and microhardness of a bioactive material (Activa) and marginal tooth structure after storage in different media. Materials and Methods Fifteen teeth received cervical restorations with occlusal enamel and gingival dentin margins using the tested material bonded with a universal adhesive, 5 of them on the 4 axial surfaces and the other 10 on only the 2 proximal surfaces. The first 5 teeth were sectioned into 4 restorations each, then stored in 4 different media; deionized water, Dulbecco's phosphate buffered saline (DPBS), Tris buffer, and saliva. The storage period for deionized water was 24 hours while it was 3 months for the other media. Each part was analyzed by scanning electron microscopy-energy dispersive spectroscopy (SEM-EDS) analysis for different substrates/distances and the wt% of calcium, phosphorus, silica, and fluoride were calculated. The other 10 teeth were sectioned across the restoration, stored in either Tris buffer or saliva for 24 hours or 3 months, and were evaluated for microhardness of different substrates/areas. Data were analyzed using analysis of variance and Tukey’s post hoc test. Results Enamel and dentin interfaces in the DPBS group exhibited a significant increase in calcium and phosphorus wt%. Both silica and fluoride significantly increased in tooth structure up to a distance of 75 μm in the 3-month-media groups than the immediate group. Storage media did not affect the microhardness values. Conclusions SEM-EDS analysis suggests an ion movement between Activa and tooth structure through a universal adhesive while stored in DPBS.

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