COMPARISON OF CYCLIC FATIGUE OF TWO DIFFERENT PEDODONTIC FILES IN 30° AND 45° CURVED ARTIFICIAL CANALS

Öz

To compare the cyclic fatigue resistance (CFR) of Fanta Baby Rotary ve Scope mini pedodontic files in curved two artificial canals. A total of 60 new pedodontic files were tested in artificial canal with 30° and 45° angles of curvature. CFR was determined by recording the time to file fracture in the artificial canals. The length of each fractured fragment was also recorded. An independent sample t-test was used to analyse the data. In the artificial canal 30° angle of curvature, there was no statistically significant difference between Fanta Baby Rotary and Scope Mini files in terms of the CFR (P>0.05). In the artifical canal with a 45° angle of curvature, Fanta Baby Rotary files had greater the CFR than Scope mini files (p<0.05). There was no statistically significant difference between the files in terms of the lengths of fractured fragments in canals with 30° and 45° angles of curvature (p>0.05). Fanta Baby Rotary files exhibited greater the CFR than Scope mini files in an artificial canals with a 45° angle of curvature.

Anahtar Kelimeler

• Curved canal
• cyclic fatigue resistance
• pedodontic files

İKİ FARKLI PEDODONTİK KANAL EĞESİNİN 30° VE 45° EĞİME SAHİP YAPAY KANALLARDA DÖNGÜSEL YORGUNLUKLARININ KARŞILAŞTIRILMASI

Öz

Bu çalışmanın amacı 2 farklı eğime sahip yapay kanallarda Fanta Baby Rotary ve Scope Mini pedodontik kanal eğelerinin döngüsel yorgunluk direncini karşılaştırmaktır. Her eğe grubundan 30’ ar olmak üzere toplamda 60 yeni pedodontik eğe çalışmaya dâhil edildi. Eğeler 30° ve 45° kanal eğim açısına sahip paslanmaz çelikten yapılmış yapay kanallarda döngüsel yorgunluk testine tabi tutuldu. Eğeler kırılıncaya kadar geçen süre kaydedildi ve eğelerin kırılıncaya kadar gerçekleştirdiği tur sayısı hesaplandı. Eğelerin kırılmış parçalarının uzunlukları da kaydedildi. Elde edilen veriler bağımsız örneklem t testi ile istatistiksel olarak değerlendirildi. 30° eğime sahip yapay kanalda, Fanta Baby Rotary ve Scope Mini eğesi arasında döngüsel yorgunluk direnci açısından istatistiksel olarak anlamlı bir fark saptanmadı (p>0.05) 45° eğime sahip yapay kanalda, Fanta Baby Rotary eğesi, Scope Mini eğesinden daha yüksek döngüsel yorgunluk direncine sahipti (p<0.05). Eğelerin kırılmış parçalarının uzunlukları bakımından her iki eğime sahip kanalda da eğeler arasında istatistiksel olarak anlamlı fark yoktu (p>0.05). Fanta Baby Rotary eğeler 45° eğime sahip yapay bir kanalda Scope Mini eğelerinden daha yüksek döngüsel yorgunluk direnci sergiledi.

Anahtar Kelimeler

• Döngüsel yorgunluk direnci
• eğimli kanal
• pedodontik eğeler

Kaynakça

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