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Comparison and Effect of Common Beverages on Color Stability of Different Esthetic Restorative Materials: An In Vitro
Abdulkhaleq Mohammed Qaraghuli1, Antonio Signore2, Stefano Benedicenti3
1Department of Surgical Sciences and Integrated Diagnostics, University of Genoa, Largo R Benzi, Genoa, Italy; Department of Dentistry, Al-Farabi University College, Baghdad, Iraq, Phone: +9647704333814 e-mail: dr.abdulkhaleq91@gmail.com; dr.abdulkhaleq@alfarabiuc.edu.iq.
Aim:
The aim of this in vitro study is to assess the color stability of different esthetic veneer restorative materials (feldspathic ceramic, hybrid ceramic, zirconia-reinforced lithium silicate glass ceramic, and composite resin) after being exposed to commonly consumed beverages that have staining potential.
Materials And Methods:
Sixty specimens were prepared into rectangular blocks with fixed dimensions of 10 × 12 × 2.5 mm. Machinable feldspathic ceramic (FC), zirconia-reinforced lithium silicate glass ceramic (LS), and a hybrid ceramic (HC) were milled using CAD/CAM (n = 15), and specimens of microparticle composite resin (MPC) were manually prepared by with the same dimensions (n = 15). All specimens were randomly divided into three subgroups (= 5) according to immersing solutions used (coffee, black tea, and red wine). All specimens were immersed for a period of 72 hours. A colorimetric evaluation was done for each specimen before and after immersion using a spectrophotometer and the difference in color was calculated according to the CIE-Lab system. To analyze the data, two-way ANOVA and one-way ANOVA tests of significance were used to compare between the different study groups, followed by pairwise comparisons using post hoc test (Tukey).
Results:
Different restorative materials showed statistical significance regarding color change after staining (p < 0.001); however, no statistical significance in color change (p > 0.05) was found between the different beverages used.
Conclusion:
All tested ceramic materials had better color stability compared with composite resin. All the staining beverages used in the current study might cause a significant color change in the tested restorative materials.
Clinical Significance:
The color stability of esthetic restorative materials affects their clinical performance in the oral cavity, where the restorative materials are usually exposed to staining beverages that are frequently consumed by patients. Therefore, it is important to understand the staining effect of the different beverages on esthetic restorative materials.
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