유사 구강 환경 조건에 따른 심미수복재의 색 안정성 평가 (Evaluation of color stability of esthetic restorative materials as simulated oral environments)

서지정보

· 발행기관 : 대한치과재료학회
· 수록지 정보 : 대한치과재료학회지 / 36권 / 4호 / 265 ~ 276페이지
· 저자명 : 강버들, 최재윤, 안진수, 임범순, 이상훈, 양형철

초록

The purpose of this study is to evaluate the degree of color stability of commercial esthetic restorative materials in various environmental solutions under thermocycling, and examine whether commercial esthetic restorative materials have stable color stability. Thermocycling condition (5℃～55℃) in deionized water was used as a control. Four commercial esthetic restorative materials were tested, of which two were compomers (Dyract AP, F2000) and two were composite resins (Herculite XRV, Filtek Supreme). Each groups were consisted of 5 specimens. Specimens were submitted to aging using 3 different solution (deionized water, 0.1M acetic acid solution and 25% ethanol solution) for 40,000 cycles of thermocycling and color coefficients (CIE L*a*b*) were measured on 0, 1,500, 3,500, 5,000, 10,000, 20,000, 40,000 cycles of thermocycling. As a result of this study, both compomers and composite resins showed that the ΔE* value increased as an increase in the cycles of thermocycling. In all experimental conditions, compomers showed significantly more color change compared to the composite resins. After 40,000 cycles of thermocycling, compomers showed ΔE* value as a range from 3.13 to 17.67 and composite resins showed ΔE* value as a range from 1.00 to 1.77. Dyract AP showed the largest ΔE* value (17.67) in 0.1M acetic acid solution and were found to be least resistant to discoloration induced acid solution. The 0.1M acetic acid solution caused a significant color change in compomers. In experimental conditions, composite resins showed an acceptable color stability (ΔE*<3.5). ΔL* values of specimens increased with longer aging periods, and showed similarities to variations of ΔE*. And ΔL* value differences had the greatest influence on the overall color change of specimens. Composite resins had an increase in ΔE* and ΔL*, but color stability was not significantly influenced (ΔE*<2) in all conditions. On the other hand, compomers showed a dramatic increase in ΔE* and ΔL*, and significantly influenced. The value of Δa* and Δb* lacked consistency.

영어초록

The purpose of this study is to evaluate the degree of color stability of commercial esthetic restorative materials in various environmental solutions under thermocycling, and examine whether commercial esthetic restorative materials have stable color stability. Thermocycling condition (5℃～55℃) in deionized water was used as a control. Four commercial esthetic restorative materials were tested, of which two were compomers (Dyract AP, F2000) and two were composite resins (Herculite XRV, Filtek Supreme). Each groups were consisted of 5 specimens. Specimens were submitted to aging using 3 different solution (deionized water, 0.1M acetic acid solution and 25% ethanol solution) for 40,000 cycles of thermocycling and color coefficients (CIE L*a*b*) were measured on 0, 1,500, 3,500, 5,000, 10,000, 20,000, 40,000 cycles of thermocycling. As a result of this study, both compomers and composite resins showed that the ΔE* value increased as an increase in the cycles of thermocycling. In all experimental conditions, compomers showed significantly more color change compared to the composite resins. After 40,000 cycles of thermocycling, compomers showed ΔE* value as a range from 3.13 to 17.67 and composite resins showed ΔE* value as a range from 1.00 to 1.77. Dyract AP showed the largest ΔE* value (17.67) in 0.1M acetic acid solution and were found to be least resistant to discoloration induced acid solution. The 0.1M acetic acid solution caused a significant color change in compomers. In experimental conditions, composite resins showed an acceptable color stability (ΔE*<3.5). ΔL* values of specimens increased with longer aging periods, and showed similarities to variations of ΔE*. And ΔL* value differences had the greatest influence on the overall color change of specimens. Composite resins had an increase in ΔE* and ΔL*, but color stability was not significantly influenced (ΔE*<2) in all conditions. On the other hand, compomers showed a dramatic increase in ΔE* and ΔL*, and significantly influenced. The value of Δa* and Δb* lacked consistency.

참고자료

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