Effects of Whitening Mouthrinses on the Color Recovery of One-shade and Multi-shade Stained Composite Resins

Year 2025, Volume: 7 Issue: 1, 97 - 104, 28.04.2025

Gülşah Yenier Yurdagüven

https://doi.org/10.51122/neudentj.2025.145

Abstract

Aim: The aim of the present study was to evaluate the efficacy of mouthrinses on the colour recovery of stained one-shade (Charisma Topaz One [CTO]) and multi-shade (Estelite Sigma Quick [ESQ]) composite resins.
Methodology: Thirty disc-shaped specimens (8-mm diameterx2-mm thickness) were prepared (n = 30). After polishing (Sof-Lex), the specimens were stored in 37°C for 24h. The specimens were stained by coffee immersion for 168h at 37°C, and then randomized into three subgroups based on the type of mouthrinse (n=10): LAW: Listerine Advanced White; CPWC: Colgate Plax White+Charcoal Capitano Whitening; LTC: Listerine Total Care. Colorimetric measurements were performed at baseline (T0), after staining (T1) and after mouthrinse immersion for 12h at 37°C (T2) with a spectrophotometer (VITA Easy shade). CIELab parameters were used for the anlaysis. Colour change expressed by ΔE and ΔL, Δa, Δb were calculated. The data were subjected to two-way ANOVA, post hoc Tukey, Student t tests (p<0.05).
Results: All samples demonstrated clinically unacceptable color change after coffee-discoloration (ΔE>3.3). CTO showed significantly higher ΔE (12,16±1,37) than ESQ (7,48±0,95) (p=0.001). The mouthrinses led to a distinct increase in the L and decrease in the a and b after staining. LAW and CPWC resulted in significant differences in ΔL (p=0.001), Δb (p=0.031) and ΔE (p=0.002) of ESQ, while causing significant difference in Δb of CTO (p=0.037) at T2-T0.
Conclusion: Whitening mouthrinse may reduce the discolouration of coffee-stained composite resins, but not match the initial colour. It provides a better whitening effect in multi-shade composite resin than one-shade composite resins.

Keywords

Composite resins , mouthwashes , colour

Ağartma Etkili Ağız Gargaralarının Renklendirilmiş Tek-renk ve Çoklu-renk Sistemli Kompozit Rezinlerin Renk Geri Kazanımı Üzerine Etkileri

Abstract

Amaç: Bu çalışmanın amacı, beyazlatıcılı ağız gargaralarının renklendirilmiş tek-renk (Charisma Topaz One [CTO]) ve çoklu-renk sistemli (Estelite Sigma Quick [ESQ]) kompozit rezinlerin renk geri kazanımı üzerine etkilerini değerlendirmektir.
Gereç ve Yöntemler: 30 adet disk şeklinde (8 mm çap x 2 mm kalınlık) örnekler hazırlandı (n=30). Örnekler, cilalandıktan (Sof-Lex) sonra 24 saat 37°C'de saklandı. Örnekler 37°C'de 168 saat kahve solüsyonunda renklendirildi ve ardından ağız gargaralarına göre rastgele üç alt gruba ayrıldı (n=10): LAW: Listerine Advanced White; CPWC: Colgate Plax White+Charcoal Capitano Whitening; LTC: Listerine Total Care. Renk ölçümleri başlangıçta (T0), kahvede reklendirme sonrası (T1) ve 37°C’de 12 saat ağız gargarasında bekletildikten sonra (T2) spektrofotometre cihazı (VITA Easy shade) ile gerçekleştirildi. Analizler için CIELab parametreleri kullanıldı. Renk değişimlerini belirlemek için ΔE ve ΔL, Δa, Δb hesaplandı. Veriler two-way ANOVA, post hoc Tukey, Student t testleri ile analiz edildi (p<0.05).
Bulgular: Kahve ile renklendirme sonrası tüm örneklerde klinik olarak kabul edilemez (ΔE>3.3) renk değişiklikleri saptanmış olup CTO kompozit rezinin ΔE değeri (12,16±1,37) ESQ’ den (7,48±0,95) anlamlı düzeyde yüksektir (p=0,001). Renklendirme sonrasında ağız gargaraları, L’de belirgin bir artışa, a ve b parametrelerinde azalmaya neden olmuştur. LAW ve CPWC, ESQ kompozit rezinin ΔL (p=0,001), Δb(p=0,031) ve ΔE (p=0,002) değerlerinde anlamlı farklılığa neden olurken CTO kompozit rezinin Δb (p=0,037) değerinde anlamlı farklılık göstermiştir.
Sonuç: Beyazlatıcılı ağız gargaraları, kompozit rezinlerin kahve renklenmelerini azaltsa da başlangıç renk değerlerine ulaştıramamaktadır. Çoklu-renk kompozitlerin rengini geri kazandırmada tek-renk kompozitlere göre daha iyi bir beyazlatma sağlamaktadır

Keywords

Kompozit rezin , ağız gargarası , renk

Ethical Statement

No needed

Supporting Institution

No

Thanks

No

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