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DOĞANAY YILDIZ, EZGİ

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DOĞANAY YILDIZ

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    The effect of taper and apical preparation size on fracture resistance of roots
    (Wiley, 2020-12-09) Yıldız, Ezgi Doğanay; Fidan, Mehmet Eren; Sakarya, Rüştü Ersoy; Dinçer, Buket; DOĞANAY YILDIZ, EZGİ; Bursa Uludağ Üniversitesi/Diş Hekimliği Fakültesi/Endodonti Anabilim Dalı.; 0000-0003-4113-7794; AAH-1635-2021; JAO-2892-2023; Bursa Uludağ Üniversitesi Diş Hekimliği Fakültesi Endodonti Anabilim Dalı, Burs
    This study investigated the effect of taper and apical preparation size on the fracture resistance of roots. 84 mandibular incisor teeth were selected. Groups (n = 12): uninstrumented (control group), 25/0.04, 25/0.06, 25/0.08, 30/0.04, 30/0.06 and 30/0.08. K3XF files (Kerr Endodontics, Orange, CA) were used for canal preparation. Fracture resistance was tested using a Universal test machine. For statistical analysis, the level of significance was P <= 0.05, and one-way anova and post hoc LSD tests were used. The control group showed the highest fracture resistance (P < 0.05). No significant difference was found between 25/0.04 and 25/0.06; 25/0.06 and 25/0.08; 30/0.04 and 30/0.06; 30/0.06 and 30/0.08; 25/0.04 and 30/0.04; 25/0.06 and 30/0.06; and 25/0.08 and 30/0.08 (P > 0.05). Significant differences were found between 25/0.04 and 25/0.08; 30/0.04 and 30/0.08; and 25/0.08 and 30/0.04 (P < 0.05). In conclusion, the clinical selection of larger tapers can cause a higher risk of fracture.