Zeynep YEŞİL DUYMUŞ, Işıl ÖZTÜRK, İpek ÇAĞLAR, Sabit Melih ATEŞ

FARKLI İÇECEKLERDE BEKLETİLEN MONOLİTİK ZİRKONYANIN RENK STABİLİTESİNİN İNCELENMESİ

Amaç: Bu çalışmanın amacı, günlük hayatta sıklıkla tüketilen farklı içeceklerin monolitik zirkonyanın renk stabilitesine etkisini değerlendirmektir. Materyal ve Metod: Disk şeklinde (10x1.2 mm) 40 adet monolitik zirkonya örnek hazırlandıktan sonra çay, kahve, kola ve suda bekletilmek üzere dört alt gruba (n=10) ayrıldı ve 37°C’de 24 saat, 7 gün, 15 gün ve 1 ay süreyle bekletildi. İçeceklerde bekletilmeden önce ve her bekletme süresinin sonunda renk ölçümleri spektrofotometre kullanılarak CIE-Lab sistemi ile yapıldı. Veriler ANOVA ve Duncan testi ile değerlendirildi. Bulgular: İçecek türünün zirkonya örneklerinin renk stabilitesine etkisinin önemli olduğu belirlendi (p <0.001; F: 32.908). Farklı içeceklerde bekletilen örneklerin ΔE değerleri incelendiğinde; en az renk değişiminin 24 saat çayda bekletilen örneklerde, en fazla renk değişiminin 30 gün kahvede bekletilen örneklerde olduğu tespit edildi. Tartışma: Monolitik zirkonyumun renk stabilitesi klinisyenler için önemli bir göstergedir. Test edilen materyallerle tedavi edilen hastalar renk değişimi konusunda uyarılmalıdır. Anahtar Kelimeler: Farklı içecekler, monolitik zirkonya, renk değişikliği THE EVALUATION OF COLOR STABILITY OF MONOLITHIC ZIRCONIA AFTER STORAGE IN DIFFERENT BEVERAGES Purpose: The purpose of this study was to evaluate the color stability of monolithic zirconia upon exposure to different beverages which were highly consumed in daily life. Materials and methods: After the preparation of 40 monolithic zirconia samples in disc form (10×1.2 mm), they were divided into four subgroups (n=10). The samples in each group immersed in tea, coffee, cola and water at 37°C for 24 hours, 7 days, 15 days and 1 month. Color measurements were performed with the CIE-Lab system using by using spectrophotometer before and after each immersion period in beverages. The data were evaluated by ANOVA and Duncan tests. Results: It was determined that beverage type had significant effect on color stability of zirconia samples (p<0.001; F: 32.908). When examined the ΔE values for samples stored in different beverages, minimum color change were detected in the samples of tea left for 24 hours and maximum color change were detected in the samples of coffee left for 30 days. Conclusions: Color stability of monolithic zirconia is an important indicator for clinicians. The patients which had been treated with the tested materials must be warned about this discolaration. Key Words: Different beverages, monolithic zirconia, color stability

Anahtar Kelimeler:

Farklı içecekler, monolitik zirkonya, renk değişikliği

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