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

Objective: The objective of the present study is to evaluatethe color stability of two different shaded acrylic denture teethand the effectiveness of different cleansing methods on stainremoval.Material-Method: Baseline color readings of 50 right maxillarycentral incisors of both A1 and A2 shaded denture teeth wereperformed with a spectrophotometer. Specimens were immersedin a staining solution for 72 hours (h), and the second colorreadings were carried out. Stained A1 and A2 shaded dentureteeth were randomly divided into five subgroups according tocleansing methods as Corega 5-min (Groups of 1C5 for A1, 2C5for A2), Protefix 3-min (Groups of 1P3, 2P3), Corega 3-min(Groups of 1C3, 2C3), brushing (Groups of 1B, 2B), distilledwater (Groups of 1control, 2control) (n=10). Third color readingswere performed after the related denture cleaning procedureswere applied to the stained teeth. First color change (ΔE1) valueswere calculated according to baseline and second color readings,while second color change (ΔE2) values were calculatedaccording to second and third color readings. Differences amongΔE1 values of the A1 and A2 shaded groups were analyzedwith the Independent Samples Test. ΔE2 values were analyzedwith two-way analysis of variance (2-way ANOVA). Multiplecomparisons were made using the Tukey HSD test.Results: ΔE1 values were higher for A2 shaded teeth, whileΔE2 values were higher for A1 shaded denture teeth (p

İki Farklı Renkte Akrilik Dişin Renklenme Dirençleri ve Renklenmenin Uzaklaştırılmasında Protez Temizleyicilerine Karşın Fırçalamanın Etkinliğinin Değerlendirilmesi: in Vitro Bir Çalışma

Amaç: Bu çalışmanın amacı, iki farklı renkte akrilik yapay dişin renk stabilitelerinin ve farklı protez temizleme yöntemlerinin renklenmeyi gidermedeki etkinliklerinin değerlendirilmesidir. Materyal-Metot: 50 adet A1 ve A2 renkte yapay dişin her biri için ilk renk ölçümleri spektrofotometre kullanılarak yapıldı. Örnekler 72 saat 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. Bulgular: Tüm gruplarda ΔE1 değerleri A2 renkli yapay dişler için daha yüksek iken, ΔE2 değerleri A1 renkli yapay dişler için daha yüksek idi (p

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