Recai ZAN, İhsan HUBBEZOĞLU, Kerem Engin AKPINAR, Gizem KUTLU, Zuhal MUTLU

ONE SHAPE NEW GENERATİON, K3XF, TWİSTED FİLE ADAPTİF VE PROTAPER NEXT ENSTRÜMANTASYON SİSTEMLERİ KULLANIMI SONRASI KÖK DENTİNİN EĞİLME DAYANIMI

Amaç: Çeşitli döner nikel-titanyum enstrümantasyon sistemlerinin kullanımı sonrası kök dentini eğilme dayanımının değerlendirilmesi.

Anahtar Kelimeler:

Eğilme dayanımı, NiTi enstrümantasyon sistemleri, kök dentini

FLEXURAL STRENGHT OF ROOT DENTIN AFTER ROOT CANAL PREPARATION USING ONE-SHAPE NEW GENERATION, K3™XF, TWISTED FILE ADAPTIVE, AND PROTAPER NEXT INSTRUMENTATION SYSTEMS

Aim: To assess the flexural strength of root dentin after using various rotary nickel-titanium instrumentation systems.Method: Eighty extracted single-rooted human mandibular premolar teeth were used. Initially, access cavities were prepared and a size 10 K-file was placed into the canal until it was visible at the apical foramen, and the working length (WL) was established 1 mm short of this length. The root canals, which standardized in the same length and thicknesses, were prepared using One Shape New Generation (OSNG), K3XF, Twisted File Adaptive (TFA) and ProTaper Next (PTN) instruments. The samples were exposed a three-point bending test. The data obtained were analyzed using the one-way analysis of variance (ANOVA) and Tukey post-hoc tests.Results: The TFA group provided statistical higher values compared to all other groups (p<0.05). The flexural strength of root dentin formed after PTN group was significantly lower than TFA group (p<0.05). Although the lowest flexural strength values were detected in OSNG and K3XFgroups, there was no significant difference between the OSNG and K3XF (p>0.05).Conclusions: Under the conditions of this study, all instrumentation systems caused the weakening of root dentin and thus reduction of the flexural strength. Specially, OSNG and K3XF instruments caused the least flexural strength value on root dentin.

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