글리세린이 coloring liquid의 침투와 지르코니아 경도에 미치는 영향
The effect of glycerine on the penetration of coloring liquid and the hardness of zirconia
박다령, 배지명, 오승한,
소속 상세정보
박다령 ( Park Da-Ryeong ) - 원광대학교 치과대학 치과생체재료학교실
배지명 ( Bae Ji-Myung ) - 원광대학교 치과대학 치과생체재료학교실
오승한 ( Oh Seung-Han ) - 원광대학교 치과대학 치과생체재료학교실
KMID : 0362220130400040327
Abstract
The purpose of this study was to evaluate the effect of glycerine on the penetration of coloring liquid on zirconia and hardness of zirconia. Three A2 coloring liquids (Prettau Aquarell Colour liquid, D.max coloring liquid, and Bruxzir coloring liquid) were used to perform this study. Glycerine were mixed with each coloring liquid at the ratio of 1 : 1 by volume. The immersion periods of zirconia specimen in the mixing solution were 1, 3, 6, 9, and 12 hrs, respectively. The penetration depth of coloring liquid were measured by vernier calliper. Color characterization of experimental specimen was performed by spectrophotometer, and hardness of the specimen was measured by Vickers hardness tester. From the results of penetration depth measurement, glycerine was supposed to affect the penetration depth of coloring liquid on zirconia regardless of immersion periods. By color analysis, L＊ value of glycerine treated specimen was significantly higher than that of control group(P<0.05), but b＊and ?E＊values of glycerine treated specimen were significantly lower than that of control group regardless of immersion periods(P>0.05). In terms of the results of Vickers hardness test, there were no significant statistical differences between control group and experimental groups. Therefore, glycerine was expected to affect the penetration of coloring liquid on zirconia and the shade of zirconia.
키워드
Glycerine; Penetration depth; Hardness; Zirconia; Coloring liquid
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