RESİPROKAL HAREKET İLE KULLANILAN ISIL İŞLEM GÖRMÜŞ TEK EĞE NİKEL TİTANYUM SİSTEMLERİN VÜCUT SICAKLIĞINDA DÖNGÜSEL YORGUNLUK DİRENÇLERİNİN KARŞILAŞTIRILMASI

Yıl 2021, Cilt: 8 Sayı: 3, 658 - 664, 31.12.2021

Gözde Baş Elçin Yüzgüleç Cangül Keskin , Uğur İnan , Ali Keleş

https://doi.org/10.15311/selcukdentj.760048

Öz

Amaç: Bu çalışmanın amacı WaveOne Gold, Reciproc Blue ve North Profa RC Blue nikel titanyum (NiTi) tek eğe döner sistemlerin vücut sıcaklığında döngüsel yorgunluğa bağlı kırılma dirençlerinin karşılaştırılmasıdır.
Gereç ve Yöntemler: Bu çalışmada WaveOne Gold, Reciproc Blue ve North Profa RC Blue döner eğe sistemlerinin her birinden on ikişer adet kullanıldı. Tüm eğeler statik model döngüsel yorgunluk deney düzeneğinde, 60°’lik kurvatür açısına, 5 mm kurvatür yarıçapına ve 1,4 mm kanal iç çapına sahip seramik yapay kanallarda ve 37°C’de kırılıncaya kadar kullanıldı. Eğelerin kırılma zamanı dijital kronometre ile kaydedildi ve kırılıncaya kadarki tur sayıları hesaplandı. Normal dağılım göstermediği saptanan veriler Kruskal-Wallis H testi ile analiz edildi. Tahmini sağlam kalma oranının belirlenmesi için Weibull analizi yapıldı.
Bulgular: North Profa RC Blue grubu ile Reciproc Blue grubu arasında ve Reciproc Blue grubu ile WaveOne Gold grubu arasında döngüsel yorgunluk direnci bakımından istatistiksel olarak anlamlı bir fark görülmedi (p> 0.05). North Profa RC Blue eğelerin döngüsel yorgunluk direnci WaveOne Gold eğelerden istatistiksel olarak anlamlı derecede yüksek bulundu (p <0.05). Kırık yüzeylerden alınan SEM görüntüleri incelenerek aletlerin döngüsel yorgunluk sonucunda kırıldığı doğrulandı.
Sonuç: Bu çalışmada, North Profa RC Blue ve Reciproc Blue eğelerin döngüsel yorgunluk dirençleri arasında fark bulunmazken, WaveOne Gold eğelerin döngüsel yorgunluk direnci North Profa RC Blue eğelerden daha düşük bulundu.

Anahtar Kelimeler

North Profa, Reciproc Blue, Seramik kanal, Taramalı elektron mikroskobu, WaveOne Gold

Kaynakça

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