J Dent Rehabil Appl Sci.  2015 Jun;31(2):96-103. 10.14368/jdras.2015.31.2.96.

Spectrophotometic analysis of the influence of substrate on the color of dental ceramics

• Song YG

• KMID: 2155036
• DOI: http://doi.org/10.14368/jdras.2015.31.2.96

Abstract

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 (DeltaE*) 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 (DeltaE*) 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.

Keyword

spectrophotometer; dental porcelain; color

MeSH Terms

Ceramics*
Dental Porcelain
Ceramics
Dental Porcelain