THE EFFECT OF OPERATOR`S EXPERIENCE ON THE CYCLIC FATIGUE RESISTANCE OF ONE CURVE, 2SHAPE AND RECIPROC NITI FILE SYSTEMS

Authors : Mehmet Https://orcidorg/0000000293636264 ADIGÜZEL, Koray YILMAZ

Pages : 46-51

Doi:10.17567/ataunidfd.807472

View : 38 | Download : 7

Publication Date : 2021-01-15

Article Type : Research Paper

Abstract :Aim: The objective of this study was to compare the resistance to cyclic fatigue of One Curve insert ignore into journalissuearticles values(OC);, 2Shape insert ignore into journalissuearticles values(TS);, and Reciproc insert ignore into journalissuearticles values(RC); files by considering the operator’s experience. Materials and methods: Mesial root canals of ninety mandibular molar teeth were prepared by three endodontic residents during the first 6 months of their training insert ignore into journalissuearticles values(IE); or by three professionals with min. 5 years of endodontic training at postgraduate level insert ignore into journalissuearticles values(E);. Then, 45 files used by the inexperienced group insert ignore into journalissuearticles values(IE-OC, IE-TS, and IE-RC);, 45 files used by the experienced group insert ignore into journalissuearticles values(E-OC, E-TS, and E-RC);, and new 45 files insert ignore into journalissuearticles values(control group; C-OC, C-TS, and C-RC); were rotated in simulated canals until separation failure occurred. insert ignore into journalissuearticles values(n=15); The time to fracture was calculated. For statistical analysis, ANOVA and Tukey’s post hoc tests were used insert ignore into journalissuearticles values(P<0.05);. Results: When compared to the experienced and inexperienced groups, the time-to-fracture of control group files was found to be significantly higher insert ignore into journalissuearticles values(P<0.05);. Comparing the experienced and inexperienced operator groups, no significant difference was found for RC files, whereas significant differences were determined for TS and OC files insert ignore into journalissuearticles values(P<0.05);. Conclusions: The residual fatigue life of TS and OC instruments may be decreased by inexperienced operators more than experienced operators. Single file RC instrument was, however, not affected by the operator’s experience. Keywords: Cyclic fatigue, experienced operator, Reciproc, OneCurve, 2Shape, Operatör deneyiminin One Curve, 2Shape ve Reciproc eğe sistemlerinin döngüsel yorgunluk direncine etkisi ÖZ Amaç: Bu çalışmanın amacı, operatör deneyimini dikkate alarak One Curve insert ignore into journalissuearticles values(OC; Micro-Mega, Besancon, Cedex, Fransa);, 2Shape insert ignore into journalissuearticles values(TS; Micro-Mega); ve Reciproc insert ignore into journalissuearticles values(RC; VDW, Münih, Almanya); eğelerin döngüsel yorulma direnclerini karşılaştırmaktır. Gereç ve Yöntem: Doksan mandibular molar dişin mezial kök kanalları, eğitimlerinin ilk 6 ayındaki üç endodonti uzmanlık öğrencisi insert ignore into journalissuearticles values(IE); tarafından veya doktora düzeyinde min. 5 yıllık endodontik eğitim almış üç uzman insert ignore into journalissuearticles values(E); tarafından prepare edildi. Ardından, deneyimsiz grup tarafından kullanılan 45 eğe insert ignore into journalissuearticles values(IE-OC, IE-TS ve IE-RC);, deneyimli grup tarafından kullanılan 45 eğe insert ignore into journalissuearticles values(E-OC, E-TS ve E-RC); ve yeni 45 eğe insert ignore into journalissuearticles values(kontrol grubu; C-OC, C-TS ve C-RC); kırık oluşana kadar simüle edilmiş kanallarda döndürüldü. insert ignore into journalissuearticles values(n = 15); Eğelerin kırılma süreleri hesaplandı. ANOVA ve Tukey’s post hoc testleri istatistiksel analiz için kullanıldı insert ignore into journalissuearticles values(P <0.05);. Bulgular: Kontrol grubundaki eğe sistemlerinin kırılma zamanı deneyimli ve deneyimsiz grubunkine göre anlamlı derece daha yüksek bulunmuştur insert ignore into journalissuearticles values(P<.05);. Deneyimli ve deneyimsiz operatörlerin grupları karşılaştırıldığında RC eğeleri için anlamlı fark bulunmamışken, TS ve OC eğeleri için anlamlı fark bulunmuştur insert ignore into journalissuearticles values(P<.05);. Sonuç: Bu çalışmada, TS ve OC eğelerin rezidüel yaşam ömrü deneyimli operatörlere kıyasla deneyimsiz operatörlerde daha fazla azaltılmıştır. Tek eğe RC sistemler ise operatörün deneyiminden etkilenmemiştir. Anahtar Kelimeler: Döngüsel yorgunluk, deneyimli operatör, Reciproc, OneCurve, 2Shape,
Keywords : Cyclic fatigue, experienced operator, Reciproc, OneCurve, 2Shape

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