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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2015.1
- 수록면
- 270 - 276 (7page)
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초록· 키워드
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Abstract
Objectives This study examined the color changes of a resin composite with different shades upon exposure to water with different pH.
Materials and Methods Nanohybrid resin composites (Filtek Z350XT, 3M ESPE) with four different shades (A2, A3, B1, and B2) were immersed in water with three different pH (pH 3, 6, and 9) for 14 day. The CIE L*a*b* color coordinates of the specimens were evaluated before and after immersion in the solutions. The color difference (ΔE*) and the translucency parameter (TP) were calculated using the color coordinates.
Results ΔE* ranged from 0.33 to 1.58, and the values were affected significantly by the pH. The specimens immersed in a pH 6 solution showed the highest ΔE* values (0.87 - 1.58). The specimens with a B1 shade showed the lowest ΔE* change compared to the other shades. TP ranged from 7.01 to 9.46 depending on the pH and resin shade. The TP difference between before and after immersion in the pH solutions was less than 1.0.
Conclusions The resulting change of color of the tested specimens did not appear to be clinically problematic because the color difference was < 1.6 in the acidic, neutral, and alkaline solutions regardless of the resin shade, i.e., the color change was imperceptible.
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참고문헌 (18)
참고문헌 신청
Abu-Bakr N / 2000 / Color stability of compomer after immersion in various media / J Esthet Dent 12 : 258 ~ 263
Bagheri R / 2005 / Influence of food simulating solutions and surface finish on susceptibility to staining of aesthetic restorative materials / J Dent 33 : 389 ~ 398
Bollen CM / 1997 / Comparison of surface roughness of oral hard materials to the threshold surface roughness for bacterial plaque retention: a review of the literature / Dent
Buchalla W / 2000 / Brushing abrasion of luting cements under neutral and acidic conditions / Oper Dent 25 : 482 ~ 487
Chadwick RG / 1990 / The effect of storage media upon the surface microhardness and abrasion resistance of three composites / Dent Mater 6 : 123 ~ 128
Bagheri R / 2005 / Influence of food simulating solutions and surface finish on susceptibility to staining of aesthetic restorative materials / J Dent 33 : 389 ~ 398
Bollen CM / 1997 / Comparison of surface roughness of oral hard materials to the threshold surface roughness for bacterial plaque retention: a review of the literature / Dent
Buchalla W / 2000 / Brushing abrasion of luting cements under neutral and acidic conditions / Oper Dent 25 : 482 ~ 487
Chadwick RG / 1990 / The effect of storage media upon the surface microhardness and abrasion resistance of three composites / Dent Mater 6 : 123 ~ 128
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