The Effect of Bleaching Treatment and Tea on Color Stability of Two Different Resin Composites

Yıl 2016, Cilt: 2 Sayı: 2, 23 - 30, 01.05.2016

Funda Öztürk Bozkurt Tuğba Toz Akalın Burcu Gözetici Gencay Genç Harika Gözükara Bağ

Öz

Aim: The aim of this study was to evaluate the staining susceptibility of two resin composites after bleaching procedure. Materials and Methods: Twenty four specimens were prepared from GC Kalore (GC Dental, Tokyo, Japan) and Filtek Z550 (3M ESPE, Seefeld, Germany). Twelve of the specimens were bleached with an office bleaching agent (Perfection White, Premier Dental, USA) whereas twelve of them were not. Color measurement was done using reflectance spectrophotometer based on the CIE L*a*b* color scale at baseline. All the specimens were immersed ice tea (Lipton Ice Tea, Turkey) and at the end of 1 and 7 days, color values were obtained again. After tea immersion procedure office bleaching was applied to all specimens and the color values were measured again. Analysis of variance and Bonferroni Correction were used for statistical analysis. Results: Both resin composites showed color change after a period 1 to 7 days however no significant differences were found between 1 and 7 days immersion (p>0.05). Z550 exhibited significantly higher color change than GC Kalore (p<0.05). Conclusion: The results of this study concluded that bleaching treatment did not caused any color change for both restorative groups. However the repeated bleaching procedure which was done following staining protocol had a favorable effect on the elimination of discoloration

Anahtar Kelimeler

bleaching, resin composite, color, discoloration

Kaynakça

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