Alkol içermeyen iki farklý aðýz gargarasýnýn geçici restorasyon materyallerinin renk deðiþimine etkisi

GÝRÝÞ ve AMAÇ: Mevcut çalýþmanýn amacý iki farklý aðýz gargarasýnda bekletilen dört farklý geçici restorasyon materyallerinin renk deðiþimlerinin karþýlaþtýrýlmasýdýr.
YÖNTEM ve GEREÇLER: Silikon kalýp yardýmýyla bis-akril kompozit rezin ve polimetil metakrilat (PMMA) içerikli dört geçici restorasyon materyalinden 14 mm çapýnda ve 2 mm yüksekliðinde toplam 84 örnek hazýrlandý. Hazýrlanan örnekler distile suda 1 hafta bekletildikten sonra baþlangýç renk deðerleri ölçüldü. Distile su (kontrol) ve aðýz gargaralarýna (Listerin ve Klorhex) maruz býrakýlacak þekilde 3 alt gruba ayrýldý (n=7). Günde 2 dakika kullaným ile 1 yýllýk kullanýma denk gelecek þekilde toplam 12 saat sývýlarda bekletildi ve tekrar renk ölçümleri yapýldý. Ýki ölçüm arasýndaki renk deðiþim deðerleri CIEDE2000 formülü ile hesaplandý ve iki yönlü varyans analizi (ANOVA) ile incelendi (a=,05).
BULGULAR: Geçici materyallerin renk deðiþimleri materyal (p=,000) ve gargara (p=,004) tipinden anlamlý olarak etkilendi. Materyalden baðýmsýz olarak gargaralarýn renk deðiþimi üzerine etkisi deðerlendirildiðinde Klorhex ile distile su arasýnda anlamlý bir farklýlýk görülmezken, Listerin grubunda en yüksek renk deðiþikliði gözlendi. Sadece materyallerin etkisi deðerlendirildiðinde bis-akril kompozit rezin grubunda (Acrytemp ve Protemp 4), PMMA grubuna (Temdent ve Imident) göre daha fazla renk deðiþimi gözlemlendi (p<,05).
TARTIÞMA ve SONUÇ: Bu çalýþmada kullanýlan geçici restorasyonlarýn renk deðiþimi, materyal ve gargaralara baðlý olarak deðiþim gösterdi. En az renk deðiþimi PMMA grubundan Temdent’te görülürken, Klorhex Listerin’den daha az renk deðiþimine neden oldu. Bununla birlikte tüm gruplardaki renk deðiþimleri klinik olarak kabul edilebilir aralýktaydý.

The effect of two different mouthrinses without alcohol on color change of temporary restoration materials

INTRODUCTION: The aim of the present study was to compare to the discoloration of four different temporary restoration materials immersed into two different oral rinses.
METHODS: 14 mm diameter, 2 mm thick, a total of 84 samples were prepared from the bis-acryl composite resin and polymethyl methacrylate (PMMA) based four different temporary restoration materials. After the prepared samples were stored in distilled water for one week, the initial color data was measured. The specimens were divided into three subgroups: Klorhex, Listerine, and distilled water (control) (n=7). The specimens were immersed in liquids for a total of 12 hours as be equivalent to 1 year for 2 minutes daily use. Then, the color data were measured again. The color change values between data were calculated using CIEDE2000 formula and analyzed by two-way analysis of variance (ANOVA) (a=.05).
RESULTS: The color changes of temporary materials were significantly affected by material (p=.000) and mouthrinse (p=.004) type. Only when the effect of mouthrinses on color change was evaluated, there was no significant difference between distilled water and Klorhex. The highest color change was observed in the Listerine group. The higher color change was observed in the bis-acryl composite resin group (Acrytemp and Protemp4) compared to the PMMA group (Temdent and Imident) (p<.05).
DISCUSSION AND CONCLUSION: The color change of the temporary restorations used in the present study differed depending on the material and mouthrinse types. The least change was observed in Temdent, while Klorhex caused less change than Listerine. However, color changes in all groups were within the clinically acceptable range.