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

Year 2024, Volume: 11 Issue: 2, 157 - 161, 19.08.2024

Özge Gizem Yenidünya , Başak Yazkan , Nilgün Akgül , Mehmet Alperen Şahin

https://doi.org/10.15311/selcukdentj.1370105

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.

Keywords

color stability, polymerization mode, preheating

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

Abstract

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.

Keywords

ön ısıtma, polimerizasyon modu, renk stabilitesi

Ethical Statement

Bu çalışma hayvanlar üzerinde yapılmamıştır ve herhangi bir insan unsuru taşımamaktadır.

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