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ORIGINAL ARTICLE
Year : 2019  |  Volume : 9  |  Issue : 3  |  Page : 210-215

Evaluation of root canal preparation using two nickel–titanium instrument systems via cone-beam computed tomography


1 Department of Operative Dentistry and Endodontics, Faculty of Odonto-Stomatology, University of Medicine and Pharmacy at Ho Chi Minh City, Ho Chi Minh City, Vietnam
2 Faculty of Odonto-Stomatology, City Children's Hospital, Ho Chi Minh City, Vietnam

Correspondence Address:
Dr. Khoa Van Pham
652 Nguyen Trai Street, Ward 11, District 5, Ho Chi Minh City
Vietnam
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/sej.sej_147_18

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Aim: The aim of this study was to evaluate the root canal preparation abilities of two nickel–titanium (NiTi) instrument systems, namely WaveOne (WO) and ProTaper Next (PTN), using cone-beam computed tomography (CBCT), on human extracted teeth. Materials and Methods: Eighty mesiobuccal root canals of the maxillary and mandibular first molars with a curvature of 10°–39° were chosen. CBCT images were captured before instrumentation using special silicone molds to ensure that the teeth are positioned at the same place before and after instrumentation. The root canals were divided into two groups, namely Group 1 and Group 2 (40 root canals in each group with similar root canal curvatures). Group 1 and Group 2 were prepared using WO and PTN, respectively. Teeth were inserted again into the previous silicone molds at the right positions. Postinstrumentation CBCT images were captured with the same parameters. Pre- and postinstrumentation CBCT images were analyzed using Invivo 5 software provided by the CBCT machine manufacturer. Results: There was no difference between the two groups of root canals instrumented by two NiTi instrument systems in root canal transportation, centering ratio, straightening, and volume changes (P > 0.05). Conclusions: Both NiTi instrument systems can be used effectively and safely in root canal instrumentation.


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