Bulk Fill Kompozitlerde Son Kullanma Tarihinin Renk Stabilitesine Etkisinin Değerlendirilmesi

Yıl 2024, Cilt: 3 Sayı: 1, 9 - 17, 01.03.2024

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Öz

Diş hekimliğinde kullanılan birçok materyalin kimyasal yapısı bozulabilir ve optimum özelliklerini sürdürmek ve raf ömrünü maksimize etmek amacıyla uygun şekilde depolanması gerekmektedir. Çalışmanın amacı, farklı kalınlıklardaki tarihi geçmiş ve geçmemiş bulkfill kompozitlerin renk stabilitelerini karşılaştırmalı olarak değerlendirmektir.
Çalışmada iki farklı renkte mikrohibrit bulkfill kompozit kullanılmıştır: SDR-Plus bulkfill, A2 renk (n=150) ve SDR-Plus bulkfill, Universal renk (n=150). Tarihi geçmiş SDR Plus A2, SDR Plus Universal ve tarihi geçmemiş SDR Plus A2, SDR Plus Universal bulkfill kompozitlerden, 2, 3 mm kalınlığında olacak şekilde kompozit diskler hazırlanmıştır (n=25). Hazırlanan örnekler dört farklı renklendirici solüsyondan (kahve, siyah çay, kırmızı şarap ve moringa çayı) ve bir kontrol grubundan (distile su) oluşan 5 alt gruba ayrılmıştır (n=5). İlk ve son renk değerlendirmeleri çapraz polarize filtreyle çekilmiş makro fotoğraflar üzerinden CIEDE2000 formülü kullanılarak yapılmıştır. Veriler istatistiksel olarak 3 yönlü varyans analizi (ANOVA) ve Tukey HSD çoklu karşılaştırmalar testleri ile incelenmiştir.
Elde edilen sonuçlara göre, tarihi geçmiş kompozitler, tarihi geçmemişlere göre renk değişimi anlamlı derecede yüksek bulunmuştur (p<0,05). 3 mm kalınlığındaki örneklerde, 1 ve 2 mm kalınlığındaki örneklere göre anlamlı düzeyde daha yüksek ∆E00 skorları elde edilmiştir (p<0,05). 1 ve 2 mm kalınlığındaki örneklerin ∆E00 değerleri arasında anlamlı farklılık gözlemlenmemiştir (p≥0,05). A2 renkteki örnekler, universal renktekilerden anlamlı düzeyde daha yüksek ∆E00 değerleri göstermiştir (p<0,05). Renklendirici solüsyonlar açısından, istatistiksel olarak en yüksek ∆E00 değerleri kırmızı şarap için bulunmuş ve bunu sırasıyla kahve, siyah çay ve moringa çayı takip etmiştir. Siyah çay ve moringa çayı arasında 1,2 ve 3 mm’lik örneklerde istatistiksel olarak fark bulunmamıştır (p≥0,05).
Kırmızı şarap kompozit renklenmesi açısından en etkili solüsyon olarak tespit edilmiş ve bunu sırasıyla kahve ve çay takip etmiştir. Bulkfill uygulamalarda tabaka kalınlığı arttıkça, özellikle 3 mm’den az kalınlıkta, bu çalışmada uygulanan renklendiricilerle renklenme düzeyinde artış görülmüştür. İçeriğinde fazla miktarda renk pigmenti bulunan koyu renkli kompozitler, açık renklilere kıyasla daha düşük renk stabilitesi gösterebilirler.

Anahtar Kelimeler

Bulkfill, Kompozit, Renk stabilitesi, Son kullanma tarihi

EVALUATION OF THE EFFECT OF EXPIRATION DATE ON COLOR STABILITY IN BULKFILL COMPOSITES

Öz

The proper storage of many restorative materials is vital to maintain their optimal properties and maximize shelf life in dentistry. This study evaluated the color stability of expired- and nonexpired-bulkfill composites in different thicknesses.
Two microhybrid bulkfill composites in different shades were used in this study: SDR-Plus bulkfill (A2) and SDR-Plus bulkfill (Universal). Composite discs of 1, 2, 3 mm thicknesses were prepared from expired and nonexpired bulkfill composites. The prepared samples were divided into 5 subgroups (n = 5) consisting of four different coloring solutions (coffee, black tea, red wine and moringa tea) and a control group (distilled water). Initial and final color assessments were conducted using macro photographs with a cross-polarization filter. The data were statistically analyzed using three-way ANOVA and Tukey's HSD multiple comparisons tests.
According to the results, expired-composites presented significant color changes compared to nonexpired-composites (p<0.05). 3 mm samples presented significantly higher ∆E00 values than the samples in 1-and 2 mm thicknesses (p<0.05). No statistical differences were observed between samples in 1-and 2 mm thicknesses (p≥0.05). A2 shade group showed significantly higher ∆E00 values compared to universal shade group (p<0.05). In terms of coloring solutions, significantly the highest ∆E00 values were detected for red wine, and it was followed respectively by coffee, black tea, and moringa tea. No statistical difference was found between black tea and moringa tea for the samples in all thicknesses (p≥0.05).
The expiration date of the restorative material is an extremely important factor in terms of color stability of composites. Red wine was determined to be the most effective solution, followed by coffee and tea, respectively. In bulkfill applications, the coloration level increases as the layer thickness increases, such as 3 mm. Dark colored composites with large amounts of color pigments may have less color stability than light colored ones.

Anahtar Kelimeler

Bulkfill, Composite, Color stability, Expiration date

Kaynakça

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