Journals / Meandros Medical And Dental Journal / 2026 / Volume: 27 Issue: 2

Effect of Whitening Mouthwashes with Different Active Agents on the Color Stability of Clear Aligners: an In Vitro Study

Farklı Aktif Ajanlar İçeren Beyazlatıcı Ağız Gargaralarının Şeffaf Plakların Renk Stabilitesi Üzerine Etkisi: İn-Vitro Çalışma

Yağmur Lena Sezici(IZMIR TINAZTEPE UNIVERSITY)0000-0003-1998-8955
Aslı Aşık(IZMIR TINAZTEPE UNIVERSITY)0000-0003-4865-3249
Genta Agani Sabah(IZMIR TINAZTEPE UNIVERSITY, FACULTY OF DENTISTRY)0000-0002-7571-6922
Pages
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Publication Date
2026-06-24
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AI Summary & Key Takeaways

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

Oxidative or enzymatic formulations yielded better residual color recovery than stain-inhibiting systems.

📌 3 Key Takeaways

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Objective & Hypothesis:Objective: This study aimed to compare the effects of whitening mouthwashes containing different active agents on the color stability of coffee-stained clear aligners.
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Key Findings & Data:Baseline color (t0) was measured using a spectrophotometer.
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Conclusion & Impact:Oxidative or enzymatic formulations yielded better residual color recovery than stain-inhibiting systems.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Clear aligners · Color stability · Whitening mouthwashes

Abstract

Objective: This study aimed to compare the effects of whitening mouthwashes containing different active agents on the color stability of coffee-stained clear aligners. Materials and Methods: Sixty-five clear aligner specimens (Invisalign, Align Technology, San Jose, CA, USA) were randomly allocated into five groups according to mouthwash: SPLAT® Professional Bioactive White Plus, Listerine Advanced White, Colgate Optic White, Marvis Whitening Mint, and Biomed Superwhite. Baseline color (t0) was measured using a spectrophotometer. Specimens were immersed in a coffee solution for 7 days to induce standardized discoloration (t1), followed by immersion in the mouthwash for 28 minutes to simulate two weeks of clinical use (t2). L*, a*, b* coordinates and color differences (ΔE00) were analyzed using repeated measures ANOVA and one-way ANOVA, with post hoc comparisons performed using Tukey’s test (α=0.05). Results:Coffee immersion significantly decreased L* and increased b* across all groups (p<0.001). Following mouthwash immersion, a significant increase in L* and a reduction in b* values were observed in all groups (p<0.001). SPLAT demonstrated the highest final lightness and the lowest final yellowness values (p < 0.05). All ΔE00 values exceeded the clinical acceptability threshold of 1.8. Biomed Superwhite and SPLAT showed significantly lower residual color differences (ΔEt0–t2) compared with Colgate Optic White (p<0.005). No significant differences were found among the groups regarding the net whitening effect (ΔEt1–t2) (p>0.05). Conclusion: Whitening mouthwashes produced partial but clinically insufficient color improvement in coffee-stained aligners; none restored baseline optical properties. Oxidative or enzymatic formulations yielded better residual color recovery than stain-inhibiting systems.

Özet

Amaç: Bu çalışmanın amacı, farklı aktif ajanlar içeren beyazlatıcı ağız gargaralarının kahve ile renklendirilmiş şeffaf plakların renk stabilitesi üzerindeki etkilerini karşılaştırmaktır. Gereç ve Yöntem: Altmış beş adet şeffaf plak örneği (Invisalign, Align Technology, San Jose, CA, ABD), ağız gargarasına göre rastgele beş gruba ayrıldı: SPLAT® Professional Bioactive White Plus, Listerine Advanced White, Colgate Optic White, Marvis Whitening Mint ve Biomed Superwhite. Başlangıç renk ölçümleri (t0) spektrofotometre ile gerçekleştirildi. Tüm örnekler standart renklenme oluşturmak amacıyla 7 gün kahve solüsyonunda bekletildi (t1). Ardından, iki haftalık klinik kullanımın simülasyonu için örnekler 28 dakika süreyle ilgili ağız gargaralarında bekletildi (t2). L*, a*, b* renk koordinatları ve renk farkları (ΔE00) tekrarlı ölçümler için varyans analizi (ANOVA) ve tek yönlü ANOVA kullanılarak analiz edildi; çoklu karşılaştırmalar Tukey testi ile yapıldı (α=0,05). Bulgular: Kahve solüsyonu, tüm gruplarda L* değerlerinde anlamlı azalmaya ve b* değerlerinde anlamlı artışa neden oldu (p<0,001). Ağız gargarası uygulamasını takiben, tüm gruplarda L* değerleri artarken, b* değerleri azaldı (p<0,001). SPLAT grubu, en yüksek L* ve en düşük b* değerlerini gösterdi (p<0,05). Tüm ΔE00 değerleri klinik kabul edilebilirlik eşiği olan 1,8’in üzerinde bulundu. Biomed Superwhite ve SPLAT, Colgate Optic White’a kıyasla anlamlı derecede daha düşük artık renk farkı (ΔEt0–t2) sergiledi (p<0,005). Net beyazlatma etkisi (ΔEt1–t2) açısından gruplar arasında istatistiksel olarak anlamlı bir fark saptanmadı (p>0,05). Sonuç: Beyazlatıcı ağız gargaraları şeffaf plaklarda sınırlı bir renk iyileşmesi sağlamış, ancak başlangıç renk özelliklerini tam olarak geri kazandıramamıştır. Oksidatif veya enzimatik içerikli ürünler, leke önleyici sistemlere kıyasla daha etkili bulunmuştur.

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Cite This Article

Sezici, Y. L., Aşık, A., Sabah, G. A., *, Y. L. S. (2026). Effect of Whitening Mouthwashes with Different Active Agents on the Color Stability of Clear Aligners: an In Vitro Study. Meandros Medical And Dental Journal, Volume: 27 Issue: 2. https://doi.org/10.69601/meandrosmdj.1862807

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