VOLUME 6 , ISSUE 4 ( November, 2005 ) > List of Articles
Yousra Hussain Al-Jazairy, Ahmed A. El-Hejazi
Citation Information : Al-Jazairy YH, El-Hejazi AA. The Color Differences Between Different Thicknesses of Resin Veneered Over Amalgam. J Contemp Dent Pract 2005; 6 (4):38-45.
DOI: 10.5005/jcdp-6-4-38
License: CC BY-NC 3.0
Published Online: 01-03-2007
Copyright Statement: Copyright © 2005; The Author(s).
Composites and compomers are popular in dental practice. However, little is known about their esthetic appearance as veneering restorative materials over amalgam restorations. This Thirty six cylindrical Teflon molds were filled with amalgam (13 mm diameter, 2 mm thickness) and stored at 37°C and 100% relative humidity for 7 days. Nine veneers (for each thickness of 1 and 2 mm) were fabricated from four types of tooth-colored restorative material, Dyract AP (DYR), Compoglass F (COMP), Herculite XRV (XRV), and Vitalecense (VIT), over amalgam specimens using Teflon-split molds and following the manufacturers’ instructions. A spectrophotometer was used to measure the color difference ΔE* between the two thicknesses. Color difference ΔE* values for 1 mm thickness veneers [XRV (2.52), Comp (5.46), VIT (6.73), and DYR (6.88)] were statistically significantly higher than the 2 mm thickness [XRV (1.32), Comp (3.24), VIT (4.89), and DYR (4.83)]. Although the XRV material had the lowest ΔE* values, no statistically significant difference was found between the two thicknesses. The color measurements at L*, a*, and b* showed most materials became darker in color at either thickness. The thicker veneer specimens were found to be closer in color to the controls than the thinner specimens. Only XRV had color differences (ΔE*) small enough to be considered clinically acceptable (2.52 and 1.32 at 1 mm and 2 mm, respectively). In this Al-Jazairy YH, El-Hejazi AA. The Color Differences Between Different Thicknesses of Resin Veneered Over Amalgam. J Contemp Dent Pract 2005 November;(6)4:038-045.