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OPAQUE와 치은 도재의 후경에 따른 도재 색조 변화에 관한 연구

An experimental study of porcelain color related to the various thickness of opaque and gingival porcelain in porcelain fused-to metal crown

부산치대논문집 1986년 3권 2호 p.17 ~ 27
정병준, 이재봉,
소속 상세정보
정병준 (  ) - Pusan National University Department of Dentistry. Graduate School
이재봉 (  ) - Pusan National University. College of Dentistry Department of Prosthodontics

Abstract


The purpose of this study was to observe the changes of color by the various thickness of opaque and gingival porcelain in porcelain fused-to metal crown.
The materials used in this study were Verabond of AALBA DENT industry and # 66 vacuum fired porcelain powder of Ceramco industry.
The tristimulus coordinates measurements of the samples were taken by photoelectric colorimeter(ND-1001DP type of DENSOKU industry in Japan) and the tristimulus coordinates were converted to Munsell´s color notations.(Hue, Value, Chroma)
The results of this study were obtained as follows:
1. In opaque layer, value and chroma were increased according to the increasing thickness.
2. Hue was translated to Y range according to the increasing thickness of gingival porcelain.
3. Value and chroma were decreased and more stable as to diminutive influence of opaque according to the increasing thickness of gingival porcelain.

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