INFLUENCE OF HOME AND OFFICE BLEACHING AGENTS ON COLOR AND TRANSLUCENCY OF COMPOSITE RESINS

Year 2019, Volume: 29 Issue: 2, 238 - 243, 22.03.2019

Muhammed Karadaş Ömer Sağsöz

https://doi.org/10.17567/ataunidfd.471498

Abstract

INFLUENCE OF
HOME AND OFFICE BLEACHING AGENTS ON COLOR AND TRANSLUCENCY OF COMPOSITE RESINS

ABSTRACT:

Aim: The purpose of this in-vitro study was to
assess the effect of two bleaching agents on the color and translucency of aged
composite resin materials (Filtek Z250, Estelite Flow Quick, and Tetric N-Ceram),
as compared to re-polishing.

Material and
Methods: Thirty composite discs from each material were made
using circular molds, and were subjected to a thermocycling process for 5000
cycles, then immersed in the prepared staining solution. The aged samples were randomly
divided into three treatment groups: re-polishing, 16% carbamide peroxide
(Opalescence), or 35% hydrogen peroxide (Whiteness HP). After aging and
whitening treatments, the color reading was performed via a spectrophotometer.
Color change (ΔE₀₀) and translucency parameters were calculated. Data
were evaluated by two-way ANOVA and Tukey’s test (p < 0.05).

Results: Bleaching agents produced significantly higher color
change in composite resins compared to re-polishing (p < 0.05). Bleaching
agents caused similar color change in each composite resin, but carbamide
peroxide caused significantly higher color change in Filtek Z250 than hydrogen
peroxide. Bleaching increased significantly the translucency of all aged
composite resins. When bleaching agents were compared to re-polishing, only carbamide
peroxide significantly increased the translucency of Filtek Z250. The re-polishing
treatment did not significantly affect the translucency of Filtek Z250 and Estelite
Flow Quick, whereas the translucency of Tetric N-Ceram significantly increased.

Conclusions: The applied treatments generated clinically
perceptible whitening. The performance of bleaching agents was higher than
that of re-polishing. The effect of bleaching agents on the translucency of
composite resins depended on the material used and the treatment applied.

Keywords: Tooth bleaching, Color, Composite resins, Polishing

KOMPOZİT
REZİNLERİN RENK VE TRANSLÜSENTLİĞİNDE EV VE OFİS BEYAZLATMA AJANLARININ ETKİSİ

ÖZ

Amaç: Bu çalışmanın amacı, yaşlandırılmış
kompozit rezinlerin renk ve translüsentliğinde iki farklı beyazlatma ajanının
etkisini re-polisaj işlemi ile karşılaştırmalı olarak değerlendirmektir.

Gereç ve Yöntem: Silindirik kalıplar kullanılarak
her bir kompozit materyalden 30 adet silindir örnek hazırlandı. Örnekler 5000 kez
termal döngüye maruz bırakıldı, daha sonra renklendirici solüsyonda bekletildi.
Yaşlandırılmış örnekler rastgele 3 tedavi grubuna ayrıldı; re-polisaj, %16 karbamit
peroksit (Opalescence), ve %35 hydrojen peroksit (Whiteness HP). Renk ölçümü
yaşlandırma ve beyazlatma tedavilerinden sonra spektrofotometre ile
gerçekleştirildi. Renk değişimi (ΔE₀₀) ve translüsentlik
parametreleri hesaplandı. Veriler iki yönlü ANOVA ve Tukey’s testi ile
değerlendirildi (p < 0.05).

Bulgular: Beyazlatma ajanları re-polisaj işlemi
ile karşılaştırıldığında önemli derecede yüksek renk değişikliği oluşturdu. Beyazlatma
ajanları her bir kompozit rezinde benzer renk değişikliğine sebep oldu, yalnızca
Filtek Z250 de karbamit peroksit hidrojen peroksitten yüksek renk değişikliği
sağladı. Beyazlatma ajanları re-polisaj işlemi ile karşılaştırıldığında yalnızca
karbamit peroksit Filtek Z250’nin translüsentliğini önemli derecede artırdı. Re-polisaj
işlemi Tetric N-Ceram’ın translüsentliğini artırmasına karşın, Filtek
Z250 ve Estelite Flow Quick’in translüsentliğini etkilemedi.

Keywords

Tooth bleaching, Color, Composite resins

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