CAD/CAM RESTORASYONLARIN RENK STABİLİTELERİ ÜZERİNDE FARKLI PARAMETRELERİN ETKİLERİ

Amaç: Dual polimerize ve self adeziv rezin simanların renklenme özelliklerini değerlendirmek ve cila prosedürünün tekrarlanmasının restorasyonun renk stabilitesine etkisini araştırmaktır. Gereç ve Yöntem: Shofu Blok HC CAD/CAM materyalinden 12140,8 mm boyutlarında 40 adet kesit (n=10) elde edildi. Kesit yüzeyleri, 600 gritlik silikon karbid (SiC) zımpara ile zımparalandı ve Enhance Finishing System ile cilalandı. Kesitlerin diğer yüzeyi 50 µm Al2O3 kum ile pürüzlendirildi. CAD/CAM bloklar uygulanacak olan adeziv rezin siman ve bekletilecek sıvı tipine göre rastgele 4 gruba ayrıldı. Adeziv rezinler üretici talimatlarına göre CAD/CAM yüzeyine uygulandı ve polimerize edildi. Başlangıç renk ölçümleri beyaz arka plan üzerinde yapıldı. Daha sonra örnekler sitrik asitte ve distile suda bir hafta bekletildi ve renk ölçümü tekrarlandı. Ardından örneklerin dış yüzeylerine tekrar cila yapılıp renk ölçümü yapıldı ve ΔE değerleri hesaplandı. İstatistiksel analizde Shapiro Wilk Testi, Kruskal Wallis Tek yönlü varyans analizi ve Dunn’s testi kullanıldı. Bulgular: En düşük ΔE1 değeri Grup 4’te, en yüksek ΔE1 değeri Grup 2’de gözlendi ve gruplar arasında anlamlı farklılık mevcuttur. En düşük ΔE2 değeri Grup 2’de en yüksek ΔE2 değeri Grup 4’te gözlendi ve gruplar arasında anlamlı farklılık mevcuttur. ΔE değerleri arasında ise Grup 1 ve 2 için anlamlı farklılık mevcuttur (p<0.05). Sonuç: Self adeziv rezin siman sitrik asitte yaşlandırıldığında dual-cure rezin simandan daha az renklenme göstermiştir. Renklenmiş restorayonlara tekrar cila uygulanması ile restorasyonun renk değişimi kullanılan adeziv rezin tipine bağlı olarak azalmıştır. Anahtar Kelimeler: adeziv rezin siman, dual polimerize, self adeziv, renklenme

Anahtar Kelimeler:

adeziv rezin siman, dual polimerize, self adeziv, renklenme

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