Staining Susceptibilities of Two Different Shaded Acrylic Denture Teeth and the Effectiveness of Brushing Versus Denture Cleansers on Stain Removal: An in Vitro Study

Abstract

Amaç:Bu çalışmanın amacı, iki farklı renkte akrilik yapay dişin renk stabilitelerinin ve farklı protez temizleme yöntemlerinin renklenmeyi gidermedeki etkinliklerinin değerlendirilmesidir. 

Gereç ve Yöntem:50 adet A1 ve A2 renkte yapay dişin her biri için ilk renk ölçümleri spektrofotometre kullanılarak yapıldı. Örnekler 72 s boyunca renklendirici solusyonda bekletildi ve ikinci renk ölçümleri gerçekleştirildi. Renklenen A1 ve A2 yapay dişler, protez temizleme yöntemine göre Corega 5-dak (A1 için 1C5, A2 için 2C5 Grupları), Corega 3-dak (1C3 ve 2C3 Grupları), Protefix 3-dak (1P3 ve 2P3 Grupları), fırçalama (1B, 2B Grupları) ve distile su (1 kontrol, 2 kontrol Grupları) olarak rastgele 5 alt gruba ayrıldı. Renklenmiş dişlere ilgili protez temizleme işlemlerinin uygulanmasının ardından üçüncü renk ölçümleri gerçekleştirildi. İlk renk değişimi (ΔE₁) değerleri ilk ve ikinci renk ölçümlerine göre hesaplanırken, ikinci renkdeğişimi (ΔE₂) değerleri ikinci ve üçüncü renk ölçümlerine göre hesaplandı. A1 ve A2 renk grupların ΔE₁ değerleri arasındaki farklılıklar Independent Samples Test ile analiz edildi. ΔE₂ değerleri çift yönlü varyans analizi (2-way ANOVA) ile test edildi. Çoklu karşılaştırmalar Tukey HSD testi ile yapıldı. 

Sonuçlar:Tüm gruplarda ΔE₁değerleri A2 renkli yapay dişler için daha yüksek iken, ΔE₂ değerleri A1 renkli yapay dişler için daha yüksek idi (p<0.05). İncelenen protez temizleme yöntemleri hem A1 hem A2 renkli yapay dişler için kontrol grubundan daha yüksek ΔE₂değerlerine neden oldu (p<0.05). A1 renkli yapay dişler için, en yüksek ΔE₂ değerleri Grup 1C3 için elde edildi (p<0.05). A2 renkli yapay dişler için, test gruplarının ΔE₂ değerleri benzer idi (p>0.05). 

Sonuç: Yapay diş rengi ve protez temizleme metodu ΔE değerleri üzerinde etkilidir. 

Keywords

• Akrilik Yapay Dişler,Temizleme Etkinliği,Kahve Renklenmesi,Protez Temizleyicileri,Renklenmenin Giderilmesi

Staining Susceptibilities of Two Different Shaded Acrylic Denture Teeth and Effectiveness of Brushing Versus Denture Cleansers on the Stain Removal: An in Vitro Study

Abstract

Objective:The objective of the present study is to evaluate color stability of two different shaded acrylic denture teeth and effectiveness of different cleansing methods on the stain removal.

Material-Method:Baseline color readings of 50 right maxillary central incisors of both A1 and A2 shaded denture teeth were performed with a spectrophotometer. Specimens were immersed in staining solution for 72 h and the second color readings were carried out. Stained A1 and A2 shaded denture teeth were randomly divided into five subgroups according to cleansing methods as Corega 5-min (Groups of 1C5 for A1, 2C5 for A2), Protefix 3-min (Groups of 1P3, 2P3), Corega 3-min (Groups of 1C3, 2C3), brushing (Groups of 1B, 2B), distilled water (Groups of 1control, 2control) (n=10). Third color readings were performed after the related denture cleaning procedures were applied to the stained teeth. First color change (ΔE₁) values were calculated according to baseline and second color readings while second color change (ΔE₂)values were calculated according to second and third color readings.Differences among ΔE₁ valuesof the A1 and A2 shaded groups were analyzed with Independent Samples Test. ΔE₂values were analyzed with two way analysis of variance (2-way ANOVA). Multiple comparisons were made using the Tukey HSD test.

Results:ΔE₁ values were higher for A2 shaded teeth, while ΔE₂values were higher for A1 shaded denture teeth (p<0.05) for all groups. The investigated denture cleansing methods caused higher ΔE₂ values than the control groups for both A1 and A2 shaded brands (p<0.05). For the A1 shaded brand, the highest ΔE₂ value was observed for Group 1C3 (p<0.05). For the A2 shaded brand, ΔE₂ values weresimilar among the test groups (p>0.05).

Conclusions:The shade of denture teeth and denture cleansing method had a significant effect on ΔE values.

Keywords

• Acrylic Denture Teeth,Cleaning Ability,Coffee Staining,Denture Cleanser,Stain Removal

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