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RISS 인기검색어
- 검색키워드
- 저자 : 장순함(Soon-Ham Jang) (검색결과 2 건)
- 무료
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장순함,허복,김현철,권용훈,박정길,Jang, Soon-Ham,Hur, Bock,Kim, Hyeon-Cheol,Kwon, Yong-Hun,Park, Jeong-Kil The Korean Academy of Conservative Dentistry 2010 Restorative Dentistry & Endodontics Vol.35 No.6
Objectives: This study examined the effect of 2% chlorhexidine on the ${\mu}TBS$ of a direct composite restoration using one-step self-etch adhesives on human dentin. Materials and Methods: Twenty-four extracted permanent molars were used. The teeth were assigned randomly to six groups (n = 10), according to the adhesive system and application of chlorhexidine. With or without the application of chlorhexidine, each adhesive system was applied to the dentin surface. After the bonding procedure, light-cure composite resin buildups were produced. The restored teeth were stored in distilled water at room temperature for 24 hours, and then cut and glued to the jig of the microtensile testing machine. A tensile load was applied until the specimen failed. The failure mode was examined using an operating microscope. The data was analyzed statistically using one-way ANOVA, Student's t-test (p < 0.05) and Scheffet's test. Results: Regardless of the application of chlorhexidine, the Clearfil $S^3$ Bond showed the highest ${\mu}TBS$, followed by G-Bond and Xeno V. Adhesive failure was the main failure mode of the dentin bonding agents tested with some samples showing cohesive failure. Conclusions: The application of 2% chlorhexidine did not affect the ${\mu}TBS$ of the resin composite to the dentin using a one-step self-etch adhesive.
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표면 거칠기가 silorane 기질 복합 레진의 색에 미치는 효과
장순함(Soon-Ham Jang),강아로미(Aromi Kang),손성애(Sung-Ae Son),허복(Bock Hur),권용훈(Yong-Hoon Kwon),박정길(Jeong-Kil Park) 대한치과재료학회 2012 대한치과재료학회지 Vol.39 No.3
This study examined the effect of surface roughness on the color of silorane-based composite exposed to staining solutions. Two methacrylate-based resin composites (Filtek Z250, Filtek Z350) and one silorane-based resin composite (Filtek P90) were light cured for 20 seconds and polished with SiC paper (#320, #600, #1000). The color of the specimens was measured in %R (reflectance) mode before and after immersing the specimens in coffee (0.89wt%) as test solution for 7 days. The color difference (?E*) was obtained based on the CIEL*a*b* color coordinate values. The surface roughness did not significantly influence the color stability of silorane-based and methacrylate-based composite. The silorane-based composite exhibited better color stability than methacrylate-based composite.
RISS
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