• Title/Summary/Keyword: 치과용 도재

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Spectrophotometic analysis of the influence of substrate on the color of dental ceramics (하부구조물 및 두께에 따른 치과 수복용 세라믹의 색조에 대한 분광측색분석)

  • Song, Young-Gyun
    • Journal of Dental Rehabilitation and Applied Science
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    • v.31 no.2
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    • pp.96-103
    • /
    • 2015

  • Purpose: The purpose of this study was to spectrophotometrically evaluate the influence of porcelain layer thickness and substructure. Materials and Methods: Four groups of porcelain specimens (metal and ceramic substructure) was prepared for analysis. Color parameters were measured with spectrophotometer and color difference (${\Delta}E*$) were calculated. T-test and one-way ANOVA test were used to find out significant difference and Tukey test was used to identify where the difference ware. Results: Increasing the thickness of porcelain decreased values (P < 0.05). Increasing the thickness of porcelain on ceramic substructure decreased the $a^*$ (P < 0.05) but, the $b^*$ were not statistically different. Total color difference (${\Delta}E*$) were below 1 when the difference of porcelain thickness were 0.5 mm. Conclusion: The thickness of porcelain are the factor effecting on color. This study will help the color are controlled by changing the thickness of porcelain clinically.

  • https://doi.org/10.14368/jdras.2015.31.2.96 인용 PDF KSCI