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Journals / Selcuk Dental Journal / 2026 / Volume: 11 Issue: 2

Evaluation of the Color Stability of Contemporary Resin Composites Polymerized with LED Curing Unit Used in Different Modes

Farklı Modlarda Kullanılan LED Işık Cihazı ile Polimerize Edilen Güncel Rezin Kompozitlerin Renk Stabilitesinin Değerlendirilmesi

Özge Gizem Yenidünya(Pamukkale üniversitesi)0000-0001-7898-9259
Başak Yazkan(PAMUKKALE ÜNİVERSİTESİ)0000-0002-6456-4054
Nilgün Akgül(PAMUKKALE ÜNİVERSİTESİ)0000-0002-6732-0485
Mehmet Alperen Şahin(PAMUKKALE ÜNİVERSİTESİ)0000-0003-0462-4067
Pages
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Publication Date
2024-08-19
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AI Summary & Key Takeaways

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

Keywords: color stability; preheating; polymerization mode.

📌 3 Key Takeaways

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Objective & Hypothesis:Aim: To compare the color changes of current bulk-fill composites polymerized with different modes immersed in coffee solution with a conventional resin composite.
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Key Findings & Data:Materials and Method: 120 disc-shaped specimens were prepared, 40 specimens from each of three different restorative materials [GrandioSO (GSO), GrandioSO x-tra (GSX), VisCalor bulk (VCB)], using 8-mm diameter and 4-mm thickness molds.
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Conclusion & Impact:Keywords: color stability; preheating; polymerization mode.
🔬Design:Research Article
📍Scope:40 specimens
⚙️Variables:color stability · polymerization mode · preheating

Abstract

Aim: To compare the color changes of current bulk-fill composites polymerized with different modes immersed in coffee solution with a conventional resin composite. Materials and Method: 120 disc-shaped specimens were prepared, 40 specimens from each of three different restorative materials [GrandioSO (GSO), GrandioSO x-tra (GSX), VisCalor bulk (VCB)], using 8-mm diameter and 4-mm thickness molds. Each composite group was polymerized by applying the high power (1200 mW/cm2) and turbo (2100 mW/cm2) modes of the LED curing unit for the times specified in the instructions (n=20). Each group was divided into two subgroups to be immersed into beverages (coffee, and distilled water) (n=10). The color change values [CIEDE2000 (ΔE00)] were calculated at the end of the 1st, 7th, and 30th days. Three-way ANOVA and multiple comparison tests with Tukey HSD at a significance level of p<0.05 were performed for the comparisons of ΔE00 values. Results: When the ΔE00-t3 values are examined, the samples of GSX composite polymerized with turbo mode and stored in coffee indicated the highest statistically significant values (17.45 ± 0.95), while the lowest values were recorded in the samples stored in distilled water of all tested composite*polymerization mode groups. Conclusion: The highest color stability after 30 days of storage was observed in the conventional composite group, regardless of polymerization mode, compared to the bulk-fill composites tested. It can be said that the preheating procedure can improve the color stability of bulk-fill composites. Keywords: color stability; preheating; polymerization mode.

Özet

Amaç: Bu çalışmada, farklı modlar ile polimerize edilen güncel bulk-fill kompozitlerin, kahve solüsyonunda bekletilmesi ile meydana gelen renk değişimlerinin geleneksel bir rezin kompozit ile CIEDE2000 formülasyonu kullanılarak karşılaştırmalı olarak incelenmesi amaçlanmıştır. Gereç ve Yöntem: Üç farklı restoratif materyalin [GrandioSO (GSO), GrandioSO x-tra (GSX), VisCalor bulk (VCB)] her birinden 40 örnek olmak üzere, 8×4 mm kalıplar kullanılarak 120 adet disk şeklinde örnek hazırlandı. Her bir kompozit grubu LED ışık kaynağının yüksek güç (1200 mW/cm2) ve turbo (2100 mW/cm2) modları talimatlarda belirtilen sürelerce uygulanarak polimerize edildi (n=20). Ardından her bir grup, iki farklı içecekte (kahve ve distile su) bekletilmek üzere alt gruplara ayrıldı (n=10). Renk değişim değerleri [CIEDE2000 (ΔE00)] 1., 7. ve 30. günlerin sonunda hesaplandı. ΔE00 değerlerinin karşılaştırılmasında p<0,05 anlamlılık düzeyinde üç yönlü varyans analizi ve çoklu karşılaştırmalar için Tukey HSD testi kullanıldı. Bulgular: ΔE00-t3 değerleri incelendiğinde, turbo mod ile polimerize edilen GSX kompozitin kahvede bekletilen numuneleri istatistiksel olarak anlamlı en yüksek ortalama değeri (17.45 ± 0.95) verirken, en düşük değerler test edilen tüm kompozit*polimerizasyon modu gruplarının distile suda bekletilen numunelerinde kaydedilmiştir. Sonuçlar: 30 günlük bekletme sonrası en iyi renk stabilitesi, test edilen bulk-fill kompozitlere kıyasla polimerizasyon modu fark etmeksizin geleneksel kompozit grubunda izlenmiştir. Ön ısıtma prosedürünün bulk-fill kompozitlerin renk stabilitesini iyileştirebileceği söylenebilir. Anahtar kelimeler: ön ısıtma; polimerizasyon modu; renk stabilitesi.

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Cite This Article

Yenidünya, Ö. G., Yazkan, B., Akgül, N., Şahin, M. A. (2024). Evaluation of the Color Stability of Contemporary Resin Composites Polymerized with LED Curing Unit Used in Different Modes. Selcuk Dental Journal, Volume: 11 Issue: 2. https://doi.org/10.15311/selcukdentj.1370105

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