Turkiye Klinikleri Journal of Dental Sciences

.: ORIGINAL RESEARCH
HyFlex EDM, RC Gold ve G-Star Nikel Titanyum Eğelerinin Döngüsel Yorgunluğa Karşı Dirençlerinin Karşılaştırılması
Comparison of Cyclic Fatigue Resistance of HyFlex EDM, RC Gold and G-Star Nickel Titanium Files
Mustafa GÜNDOĞARa
aMedipol Üniversitesi Diş Hekimliği Fakültesi, Endodonti ABD, İstanbul, TÜRKİYE
Turkiye Klinikleri J Dental Sci. 2020;26(1):21-5
doi: 10.5336/dentalsci.2018-64545
Article Language: TR
Full Text
ÖZET
 Amaç: Statik model altında HyFlex EDM, RC Gold ve G-Star nikel titanyum eğelerinin döngüsel yorgunluğa karşı dirençlerinin karşılaştırılmasıdır. Gereç ve Yöntemler: Yirmi G-Star (25/,06), 20 RC Gold File (25/,08) ve 20 HyFlex EDM (25/,08) çalışmaya dâhil edildi. Eğeler üretici firma talimatlarına uygun olarak 5 mm kurvatür yarı çapına, 60'' kanal kurvatür açısına ve 1,5 mm kanal iç çapına sahip paslanmaz çelikten yapılmış yapay kanallarda kırılıncaya kadar kullanıldı. Eğeler kırılıncaya kadar geçen süre dijital kronometre ile kaydedildi ve eğelerin kırılıncaya kadar yaptığı tur sayısı hesaplandı. Elde edilen veriler Kruskal-Wallis testi ile istatistiksel olarak değerlendirildi. Bulgular: Eğelerin kırılıncaya kadar yaptığı ortalama tur sayılarının yüksekten düşüğe sıralaması sırayla HyFlex EDM, RC Gold ve G-Star olarak bulundu. Bütün gruplar arasında istatistiksel olarak fark mevcuttu (p<0,05). Sonuç: Çalışmamız sınırları dâhilinde HEDM eğesinin döngüsel yorgunluğa karşı direnci, RC Gold File ve G-Star eğesinden daha yüksek bulunmuştur.

Anahtar Kelimeler: Endodonti; titanyum nikelid
ABSTRACT
 Objective: To compare the cyclic fatigue resistance of HyFlex EDM, RC Gold and G-Star nickel titanium files under static model. Material and Methods: Twenty G-Star (25/.06), 20 RC Gold File (25/.08) and 20 HyFlex EDM (25/,08) nickel titanium files were included in the present study. According to the manufacturer instruction files were rotated in an artificial stainless steel with 5 mm radius, 60'D angle of curvature and 1.5 mm inner diameter. The time to failure of files was recorded with a digital chronometers and the number of cycles to failure of files were calculated. Kruskal-Wallis test was performed for statistically analyze. Results: The mean number of cycles to failure of files highest to lowest was HyFlex EDM, RC Gold and G-Star respectively. A statistically significant difference was noted between all the groups (p<0.05). Conclusion: Within the limitation of the present study the cyclic fatigue resistance of HyFlex EDM nickel titanium files was greater than the RC Gold and G-Star nickel titanium files.

Keywords: Endodontics; titanium nickelide
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