Coffee Solution Effect on Color Differences of Resin Matrix Ceramics

Year 2023, , 98 - 105, 29.08.2023

Elif Çelik , Ahmet Serkan Küçükekenci

https://doi.org/10.21306/dishekimligi.1222917

Abstract

Objectives: This study aims to evaluate the effect of soaking in coffee solution on color differences after two polishing processes are applied to three different CAD/CAM ceramics with currently used resin matrix content.
Materials and Methods: A total of 60 samples (1.5 mm ± 0.01 thickness) of three different resin matrix CAD/CAM blocks [polymer-infiltrated-ceramic-network (VE, VITA Enamic), nanoparticle-filled ceramic (LU, Lava Ultimate), composite resin nano-ceramic (CE, Cerasmart)] were prepared (n=20). The prepared samples were divided into two subgroups according to the polishing process (n=10); While polishing rubber was applied to one group (D, Diapol Twist), polishing discs were applied to the other group (S, Sof-Lex Disc). The color values of the samples before (L0, a0, b0) and after soaking in the coffee solution (L1, a1, b1) were recorded in the CIE Lab color system with a spectrophotometer device (Vita EasyShade). Color differences were calculated with the formula CIEDE2000 (ΔE00). Then, the values were analyzed by two-way ANOVA and Tukey’s multiple comparison tests.
Results: As a result of the two-way analysis of variance, it was obtained that only the ceramic type effect significantly on the color differences (p<0.001). Although the samples polished with Sof-Lex discs in all ceramics showed less color difference than the Diapol Twist polishing rubber, there was no statistically significant difference between them (p>0.05). Each group showed a clinically unacceptable color differences value (ΔE00> 1.8). Statistically, the lowest color differences were obtained in the VE ceramics (p<0.05). The statistically higher color differences were observed in the CS ceramic groups than in other ceramics (p<0.05) except the LU_D group (p>0.05).
Conclusion: After soaking in a coffee solution, the color of CS ceramic was more affected than other resin matrix ceramics.

Keywords

Polishing, Color Stability, Resin Matrix.

Kahve Solüsyonunun Rezin Matriks Seramiklerin Renk Değişimine Etkisi

Abstract

Amaç: Bu çalışmanın amacı; güncel olarak kullanılan üç farklı rezin matriks içerikli CAD/CAM seramiğe iki farklı polisaj işlemi uygulandıktan sonra kahve solüsyonda bekletmenin renk değişimine olan etkisini incelemektir.
Gereç ve Yöntemler: Üç farklı rezin matriks CAD/CAM bloktan [Polimer-infiltre ağ yapılı seramik (VE, VITA Enamic), Rezin nanoseramik (LU, Lava Ultimate), Nanopartikülle doldurulmuş nanoseramik (CE, Cerasmart)] toplam 60 örnek (1.5 mm ±0.01 kalınlıkta) hazırlandı (n=20). Hazırlanan örnekler polisaj işlemine göre iki alt gruba ayrıldı (n=10). Birinci gruba polisaj lastiği uygulanırken (D, Diapol Twist) diğer gruba polisaj diskleri uygulandı (S, Sof-Lex Disc). Örneklerin kahve solüsyonunda bekletmeden önceki (L0, a0, b0) ve beklettikten sonraki renk değerleri (L1, a1, b1) spektrofotometre cihazı (Vita EasyShade) ile CIE Lab renk sisteminde kaydedildi. Renk farklılıkları CIEDE2000 (ΔE00) formülü ile hesaplandı. Elde edilen değerler iki yönlü varyans (ANOVA) ve Tukey’s çoklu karşılaştırma testleri ile analiz edildi.
Bulgular: İki yönlü varyans analizi sonucu sadece seramik tipinin renk değişikliği üzerine anlamlı farklılıklar oluşturduğu görüldü (p<0.001). Tüm seramiklerde Sof-Lex diskler ile polisaj işlemi yapılan örnekler Diapol Twist polisaj lastiği uygulanan örneklere göre daha az renk değişimi göstermesine rağmen aralarında istatistiksel olarak fark görülmemiştir (p>0.05). Bütün gruplarda klinik olarak kabul edilebilir değerin üzerinde renk değişikliği oluştuğu görüldü (ΔE00>1.8). İstatistiksel olarak en az renk değişikliği VE gruplarında görüldü (p<0.05). CS seramik örneklere ait gruplarda diğer gruplara göre istatistiksel olarak daha fazla renk değişikliği görülmesine rağmen (p<0.05), LU_D grubu ile arasında istatistiksel olarak fark görülmedi (p>0.05).
Sonuç: CS seramik kahve solüsyonunda bekletilmesi sonucu diğer rezin matriks seramiklere göre daha fazla renk değişimine uğramıştır.

Keywords

Parlatma, Renk Stabilitesi, Rezin matriks

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