색상 측정 기기를 이용한 복합레진 적층 수복과 단일 수복의 색상 비교 분석
Colorimetric comparison of single layered dental composite with double layered dental composite
송영상, 김자현, 이빈나, 장지현, 장훈상, 황윤찬, 오원만, 황인남,
소속 상세정보
송영상 ( Song Young-Sang ) - 전남대학교 치의학전문대학원 보존학교실
김자현 ( Kim Ja-Hyun ) - 전남대학교 치의학전문대학원 보존학교실
이빈나 ( Lee Bin-Na ) - 전남대학교 치의학전문대학원 보존학교실
장지현 ( Jang Ji-Hyun ) - 전남대학교 치의학전문대학원 보존학교실
장훈상 ( Chang Hoon-Sang ) - 전남대학교 치의학전문대학원 보존학교실
황윤찬 ( Hwang Yun-Chan ) - 전남대학교 치의학전문대학원 보존학교실
오원만 ( Oh Won-Mann ) - 전남대학교 치의학전문대학원 보존학교실
황인남 ( Hwang In-Nam ) - 전남대학교 치의학전문대학원 보존학교실
KMID : 0362320120370020084
Abstract
Objectives: This study analyzed the difference in color caused by different thickness in enamel layer of composite resins when applied with single and layering placement technique, and evaluated if the results agreed with the shade guide from the manufacturers to verify reliability of the color matching process of the manufacturers.
Materials and Methods: For single composite resin samples, 6 mm diameter and 4 mm thickness cylindrical samples were fabricated using Ceram-X mono (DENTSPLY DeTrey) and CIE L*a*b* values were measured with spectrophotometer. Same process was done for layering composite resin samples, making 3 dentinal shade samples, 4 mm thickness, for each shade using Ceram-X duo (DENTSPLY DeTrey) and enamel shade resins were layered in 2 mm thickness and CIE L*a*b* values were measured. These samples were ground to 0.2 mm thickness each time, and CIE L*a*b* values were measured to 1 mm thickness of enamel shade resin.
Results: Color difference (ΔE*) between single and layering composite resin was 1.37 minimum and 10.53 maximum when layering thicknesses were between 1 mm and 2 mm and 6 out of 10 same shade groups suggested by manufacturer showed remarkable color difference at any thickness (ΔE* > 3.3).
Conclusion: When using Ceram-X mono and duo for composite resin restoration, following the manufacturer's instructions for choosing the shade is not appropriate, and more accurate information for Ceram-X duo is needed on the variation and expression of the shades depending on the thickness of the enamel.
키워드
Colorimetric comparison; Composite resin; Resin shade; Spectrophotometer
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