Evaluation of Discoloration Removal by Polishing Resin Composites Submitted to Staining in Different Drink Solutions. (20th August 2015)

• Record Type: Journal Article
• Authors: Spina, Denis Roberto Falcão; Grossi, João Ricardo Almeida; Cunali, Rafael Schlögel; Baratto Filho, Flares; Cunha, Leonardo Fernandes da; Gonzaga, Carla Castiglia; Correr, Gisele Maria
• Other Names: Rimondini Lia Academic Editor.
• Is Part Of: International scholarly research notices. Volume 2015(2015)
• Publication Date: 2015-08-20
• Subjects: Medical sciences -- Periodicals; Life sciences -- Periodicals; Medicine -- Periodicals; Science -- Periodicals; Biomedical Technology; Biological Science Disciplines; Medicine; Life sciences; Medical sciences; Medicine; Science; Periodical; Periodicals; Fulltext; Internet Resources; Periodicals; Electronic journals
• DOI: 10.1155/2015/853975
• Languages: English
• ISSNs: 2356-7872

Abstract

Abstract : The aim of this study was to evaluate the discoloration effects of water, cola-based soft drink, coffee, and wine on resin composites used in restorative dentistry and the possibility of removing the stain with chair side manual polishing. The A2 shade of three materials was tested. Disc specimens were prepared. A spectrophotometer was used to measure the baseline CIE-Lab color parameters of each material (n =10 ) 24 hours after sample preparation. Samples were then immersed in a cola-based soft drink, coffee, or wine for 1 hour every day, for 30 days. For the remaining hours, the specimens were stored in distilled water. In the control group, the specimens were immersed in water for the whole period. The color differences (Δ E ) were calculated after 7 and 30 days of storage, and after polishing with coarse Sof-Lex discs, and analyzed by two-way ANOVA with repeated measures and Tukey's HSD test (α=0.05 ). Luna presented higherΔ E values3.41 a followed by Durafill2.82 b and Herculite2.24 c . For the drink solutions, Δ E values were higher for wine4.40 a followed by coffee2.59 b and for cola-based soft drink2.23 c and water2.13 c which were statistically similar. For time, Δ E values were higher for 30 days3.97 a and then for 7 days2.48 b and after polishing2.04 c . The results indicate that color stability is material dependent. The types of drinks that patients consume also influence the color stability of restorative materials.