The Effect of Different Solutions on the Color Stability of Temporary Restorations

Year 2025, Volume: 11 Issue: 2, 71 - 76, 29.08.2025

Şükriye Ece Doğan

https://doi.org/10.21306/dishekimligi.1708952

Abstract

Objective: The aim of this study was to evaluate the color stability of three different temporary restorative materials (Polymethyl methacrylate [PMMA], bis-acryl composite resin, and photopolymerized resin produced by three-dimensional [3D] printing) after immersion in tea, coffee, and distilled water.
Materials and Methods: A total of 45 specimens were prepared using PMMA, bis-acryl composite resin, and 3D-printed photopolymerized temporary resin. Fifteen specimens from each material group were immersed in three different solutions (coffee, tea, distilled water) for 14 days. Initial and final L*, a*, and b* color values were measured using a spectrophotometer, and color change was calculated using the ΔE formula. Normality of the data was assessed with the Shapiro-Wilk test, and two-way analysis of variance was applied. Within-group differences were evaluated using the Friedman test, and between-group differences using the Kruskal-Wallis test. A significance level of p<0.05 was adopted for all statistical analyses.
Results: Material type, solution type, and their interaction had a statistically significant effect on color change values (p<0.001). The greatest color change was observed in the 3D-printed resin immersed in coffee, while the lowest was found in the same material immersed in distilled water.
Conclusion: The color stability of temporary restorative materials varies depending on both the chemical composition of the material and the solution it is exposed to. Particularly in esthetic zone restorations, the tendency of 3D-printed resins to exhibit greater discoloration should be considered when selecting a suitable material.

Keywords

temporary restorations , color stability , pmma , bis-acryl , 3d printing

Farklı solüsyonların geçici restorasyonların renk stabilitesine etkisi

Abstract

Amaç: Bu çalışmanın amacı, üç farklı geçici restoratif materyalin (Polimetilmetakrilat [PMMA], bis-akril kompozit rezin ve 3Boyutlu [3B] yazıcı ile üretilmiş fotopolimerize rezin) çay, kahve ve distile suya maruz bırakılmaları sonrası renk stabilitesini değerlendirmektir.
Gereç ve Yöntemler: Çalışmada PMMA, bis-akril kompozit rezin ve 3B yazıcı ile üretilmiş fotopolimerize geçici rezinden toplam 45 örnek hazırlanmıştır. Her materyal grubundan 15 örnek üretilmiş ve bu örnekler üç farklı solüsyonda (kahve, çay, distile su) 14 gün süreyle bekletilmiştir. Başlangıç ve final L*, a*, b* renk değerleri spektrofotometre ile ölçülmüş, ΔE formülü ile renk değişimi hesaplanmıştır. Elde edilen verilerin normal dağılıma uygunluğu Shapiro-Wilk testi ile bakılmış, iki yönlü varyans analizi uygulanmıştır. Grup içi farklar Friedman, grup arası farklar Kruskal-Wallis testi ile değerlendirilmiştir. Anlamlılık düzeyi p<0.05 olarak kabul edilmiştir.
Bulgular: Materyal tipi, solüsyon türü ve bu iki değişkenin etkileşimi renk değişim değerleri üzerinde anlamlı farklılık oluşturmuştur (p<0.001). En fazla renk değişimi kahvede bekletilen 3B baskı rezin materyalinde gözlenmiş, en düşük renk değişimi ise distile suda bekletilen 3B rezin grubunda tespit edilmiştir.
Sonuç: Geçici restoratif materyallerin renk stabilitesi, hem materyalin kimyasal yapısına hem de maruz kaldığı solüsyona bağlı olarak değişmektedir. Özellikle estetik bölgedeki geçici restorasyonlarda, 3B rezinlerin yüksek renklenme eğilimi göz önünde bulundurularak materyal seçimi yapılmalıdır.

Keywords

Geçici restorasyon , renk stabilitesi , pmma , bis akril , 3b yazıcı

Ethical Statement

çalışmanın etik kurul onayı ihtiyacı yoktur.

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