Investigation of Various Finishing/Polishing Procedures on Color Stability of Composite Resins

Year 2024, , 91 - 99, 31.08.2024

Sevim Atılan Yavuz , Duygu Ergel , Ayşe Tuğba Ertürk Avunduk , Esra Cengiz Yanardağ

https://doi.org/10.34084/bshr.1495495

Abstract

Objective: The objective of this study was to assess the impact of various finishing and polishing systems on the color stability of composite resins treated with coffee.
Methods: Fifty samples of each of nanohybrid and supra-nanohybrid composite resin materials were prepared and each material was randomly divided into 5 groups (n=10): Group 1: Control group (mylar strip), Group 2: One Gloss (one step), Group 3: One Gloss + polishing paste, Group 4: Soflex disk (multistep), Group 5: Soflex disk + polishing paste. The samples were colored in coffee solution for 144 hours to simulate six months of coffee consumption after polishing. The color of the samples before-after staining was measured with a spectrophotometer and ∆E00 values were calculated.
Results: Material, polishing type and the interaction of these two parameters had a statistical effect on the color change values (p< 0,001). The ∆E00 values of supra-nanohybrid composite resin were higher than nanohybrid. Both materials exhibited color change above the thresholds of clinical perceptibility (PT> 0,8) and acceptability (AT> 1,8). In terms of polishing types, the highest ∆E00 was found in the control group and the lowest in the disk group. The additionally applied polishing paste caused a non-significant decrease in the color change of the single-step polishing system (p< 0,05) and a statistically significant increase in the multi-steps polishing system (p> 0,05).
Conclusion: Considering the limitations of the study, it can be concluded that the use of multi-steps discs is more advantageous in preventing discoloration of composite resins.

Keywords

Finishing and polishing, Composite resin, Color stability

FARKLI BİTİM/POLİSAJ SİSTEMLERİNİN REZİN KOMPOZİTLERİN RENKLENMESİ ÜZERİNE ETKİSİNİN DEĞERLENDİRİLMESİ

Abstract

Amaç: Çalışmanın amacı; farklı bitim/polisaj sistemlerinin kahve ile renklendirilen kompozit rezinlerin renk stabilitesi üzerine olan etkilerinin değerlendirilmesidir.
Yöntemler: Nanohibrit ve supra-nanohibrit kompozit rezin materyallerinin her birinden 50 adet numune hazırlandı ve her materyale rastgele 5 gruba (n=10) ayrıldı: Grup 1: Kontrol grubu (mylar strip), Grup 2: One Gloss (tek aşama), Grup 3: One Gloss + Polisaj patı, Grup 4: Soflex disk (çok aşama), Grup 5: Soflex disk + Polisaj patı. Numuneler, cila sonrası altı aylık kahve tüketimini taklit etmek amacıyla 144 saat boyunca kahve çözeltisinde renklendirildi. Spektrofotometre cihazı ile renklendirme öncesi/ sonrası numunelerin rengi ölçülüp ∆E00 değerleri hesaplandı.
Bulgular: Renk değişimi değerleri üzerine materyalin, polisaj türünün ve bu iki parametrenin etkileşimlerin istatistiksel olarak etkilediği görüldü (p<0,001). Supra-nanohibrit kompozit rezinin ∆E00 değerleri, nanohibrit kompozit rezinden yüksekti. Her iki materyalde klinik olarak algılanabilirlik (PT> 0,8) ve kabul edilebilirlik (AT>1,8) eşik değerlerinin üzerinde renk değişimi sergiledi. Polisaj türleri bakımından, en yüksek ∆E00 kontrol grubunda en düşük değer ise disk grubunda bulundu. İlave olarak uygulanan polisaj patı, tek aşamalı polisaj sistemin renk değişiminde anlamlı olmayan bir azalışa (p< 0,05), çok aşamalı polisaj sisteminde ise istatistiksel olarak anlamlı bir artışa neden oldu (p> 0,05).
Sonuç: Çalışmanın limitasyonları göz önünde bulundurulduğunda, çok aşamalı disk kullanımının kompozit rezinlerde oluşan renklenmeyi önlemede daha avantajlı olduğu değerlendirilebilir.

Keywords

Bitim ve cila, Kompozit rezin, Renk stabilitesi

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