陶材焼付鋳造冠のオペーク陶材に関する測色学的研究 : 第2報褐色系, 灰色系, 赤色系オペーク陶材による裏装金属色遮蔽効果

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To clarify the color of porcelain fused to metal crowns, we examined opaque porcelain baked on a metal base using a color and color difference meter. The following types of materials were used in fabricating the samples : (1) 84.3% Au-Pt-Pd-Ag alloy, (2) 81.9% Pd-Cu-Ga alloy, (3) 77.0% Ni-Cr alloy, (4) Brown opaque porcelains ; A_1O, A_2O, A_3O, A_4O, (5) Grey opaque porcelains ; C_1O, C_2O, C_3O, C_4O, (6) Red opaque porcelains ; D_2O, D_3O and D_4O. The masking effect on the color of the metal base was examined. The following results were obtained : 1. The color of the opaque porcelain fused to the metal was affected by all opaque porcelain colors having 0.l0〜0.20mm thick opaque porcelain layer. The masking effect on the color of the metal was as follows ; In case of light color opaque porcelain, D group colors were the highest, followed by C group colors, with A group colors being the lowest. In case of dark color opaque porcelain, C group colors were highest, followed by A group colors, with D group colors being the lowest. Opaque layers thicker than 0.25mm were not affected by the opaque porcelain colors. 2. The color of opaque porcelain fused to the metal was affected by all metal colors for 0.10〜0.20mm thick opaque porcelain layers. The masking effect on the color of the metal base was as follows ; Au-Pt-Pd-Ag alloy was the highest, followed by Ni-Cr alloy, with Pd-Cu-Ga alloy being the lowest. Opaque layers thicker than 0.25mm were not affected by the metal colors.
日本補綴歯科学会の論文
1990-12-01

陶材焼付鋳造冠のオペーク陶材に関する測色学的研究 : 第2報褐色系, 灰色系, 赤色系オペーク陶材による裏装金属色遮蔽効果

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陶材焼付鋳造冠のオペーク陶材に関する測色学的研究 : 第2報 褐色系, 灰色系, 赤色系オペーク陶材による裏装金属色遮蔽効果

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陶材焼付鋳造冠のオペーク陶材に関する測色学的研究 : 第2報褐色系, 灰色系, 赤色系オペーク陶材による裏装金属色遮蔽効果