의치상 직접 이장레진의 색조 안정성
THE COLOR STABILITY OF DIRECT DENTURE RELINE RESINS
강은숙, 전영찬, 전윤경,
소속 상세정보
강은숙 ( Kang Eun-Sook ) - 부산대학교 치과대학 보철학교실
전영찬 ( Jeon Young-Chan ) - 부산대학교 치과대학 보철학교실
전윤경 ( Jeon Yun-Kyung ) - 부산대학교 치과대학 치과보철학교실
KMID : 0362420030410020160
Abstract
Statement of problem : Direct denture reline resins tend to discolor during service in the oral environment by intrinsic and extrinsic factor. Purpose : This study was designed to evaluate the color stability of direct denture reline resins. Material and methods : Mild Rebaron(GC Corp., Japan), Meta Base M(Sun medical Co., Japan), Mild Rebaron LC(GC Corp., Japan) and as a control group, Vertex SC(Dentimex Zeist, Holland) were chosen for this study. Ten specimens of each direct denture reline resins were fabricated. Treatment methods designed for this study were the coffee staining test(7days) and the accelerated aging test(100hours). The color changes before and after treatment were measured by Tristimulous colorimeter(Yasuda seiki seisakusho, Ltd. Japan) and analyzed. Results All the direct denture reline resins subjected to the coffee staining test and the accelerated aging test showed noticible difference in color change. After coffee staining test, Meta Base M showed the highest color change followed by Vertex SC. Mild Rebaron LC and Mild Rebaron. There were no statistical differences between Meta Base M and Vertex SC and between Mild Rebaron LC and Mild Rebaron(p>0.05). After accelerated aging test. Mild Rebaron LC showed the highest color change followed by Vertex SC, Meta Base M and Mild Rebaron. There were no statistical differences only between Mild Rebaron and Mata Base M(p>0.05) but among the others, there were statistical differences(p<0.05). Conclusion : Within the limitation of this study, all the direct denture reline resins subjected to the extrinsic and intrinsic factors showed noticible difference in color change, and there were differences among manufacturers.
키워드
Accelerated aging ; Denture reline resin ; Extrinsic color stability ; Intrinsic color stability
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