Journals / Uşak Üniversitesi Diş Hekimliği Fakültesi Dergisi / 2026 / Cilt: 4 Sayı: 1

The Effect of Ambient Light at Different Times of the Day on the Color Change of Resin Composites

Günün Farklı Zamanlardaki Ortam Işığının Rezin Kompozitin Renk Değişimi Üzerindeki Etkisi

Muhammet Fidan(UŞAK ÜNİVERSİTESİ, DİŞ HEKİMLİĞİ FAKÜLTESİ)0000-0001-7869-4872
Gözde Karaaslan(UŞAK ÜNİVERSİTESİ, DİŞ HEKİMLİĞİ FAKÜLTESİ)0000-0003-2039-8901
Muhammet Ayar(UŞAK ÜNİVERSİTESİ, DİŞ HEKİMLİĞİ FAKÜLTESİ)0000-0002-7959-5769
Pages
1–6
Publication Date
2026-04-20
DOI
—
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

In conclusion, ambient light affects resin composite color variation, and proper lighting selection may improve aesthetic outcomes in dental restorations.

📌 3 Key Takeaways

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Objective & Hypothesis:The aim of this study was to evaluate the color variation of different resin composite shades under ambient light at various times of the day compared to a standard light source.
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Key Findings & Data:Sixty disc-shaped samples were prepared from Dynamic Plus (President, Germany) composite in A2 and A3 shades.
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Conclusion & Impact:In conclusion, ambient light affects resin composite color variation, and proper lighting selection may improve aesthetic outcomes in dental restorations.
🔬Design:Araştırma Makalesi
📍Scope:Comprehensive Sample
⚙️Variables:renk algısı · renk değişimi · ortam ışığı

Abstract

The aim of this study was to evaluate the color variation of different resin composite shades under ambient light at various times of the day compared to a standard light source. Sixty disc-shaped samples were prepared from Dynamic Plus (President, Germany) composite in A2 and A3 shades. Each shade group was randomly divided into three subgroups (n=10). L*, a*, and b* values were measured using a spectrophotometer under a white background at 5500 K, followed by reevaluation under ambient light in the morning (10:00), noon (14:00), and evening (18:00). Color change (ΔE00) was calculated with the CIEDE2000 formula, and data were analyzed by two-way ANOVA and Tukey post-hoc tests (p<0.05). The interaction between light and shade was not significant (p=0.425). However, the main effects of light (p<0.001) and composite shade (p=0.003) were significant. The lowest ΔE00 was observed in the evening (0.36 ± 0.19), while the highest occurred at noon (1.35 ± 0.39). No significant difference was found between noon and morning values (p>0.05). The A2 group showed significantly higher ΔE00 than A3 (p=0.003). In conclusion, ambient light affects resin composite color variation, and proper lighting selection may improve aesthetic outcomes in dental restorations.

Özet

Bu çalışmanın amacı rezin kompozitin farklı renk tonlarının günün farklı zamanlarındaki ortam ışığı ile standart bir ışık kaynağı arasındaki renk değişim değerleri incelenmiştir. Dynamic Plus (President, Almanya) rezin kompozit materyalinden A2 ve A3 renk tonlarında toplam 60 disk hazırlanmış ve her renk grubu rastgele üç alt gruba ayrılmıştır (n=10). Spektrofotometre kullanılarak 5500 K ışık sıcaklığında beyaz arka planda L*, a* ve b* değerleri ölçülmüş ardından sabah (10.00), öğle (14.00) ve akşam (18.00) saatlerinde ortam ışığı altında yeniden değerlendirilmiştir. Renk değişimi (ΔE00) CIEDE2000 formülü ile hesaplanmış ve istatistiksel analiz için iki yönlü varyans analizi (two-way ANOVA) ve Tukey post-hoc testi uygulanmıştır (p<0.05). Two-way ANOVA sonuçları ışık ve kompozit renk tonu arasındaki etkileşimin ΔE00 üzerinde anlamlı bir etkisi olmadığını göstermiştir (p=0,425). Işık ve kompozitin ana etkileri ise anlamlı bulunmuştur (p<0.001 ve p=0.003). En düşük ΔE00 akşam saatlerinde (0.36 ± 0.19), en yüksek değer ise öğle saatlerinde gözlenmiştir (1.35 ± 0.39). Öğle ve sabah zamanlarında rezin kompozitlerin ΔE00 değeri arasındaki fark istatistiksel olarak anlamlı bulunmadı (p>0.05). A2 grubunun ΔE00 değeri A3 grubuna kıyasla daha yüksek bulunmuştur (p=0.003). Sonuç olarak ortam ışığı rezin kompozitlerin renk farklılıklarını etkileyebilir ve diş restorasyonlarında doğru ışık kullanımı estetik uyumu artırabilir.

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Cite This Article

Fidan, M., Karaaslan, G., Ayar, M. (2026). The Effect of Ambient Light at Different Times of the Day on the Color Change of Resin Composites. Uşak Üniversitesi Diş Hekimliği Fakültesi Dergisi, Cilt: 4 Sayı: 1, 1–6. https://ajindex.com/articles/1647286

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