Analysis of Shaping Abilities of Rotary File Systems in Oval Canals with Moderate Root Curvature: A Randomized Controlled Ex Vivo Study.

Autor:	Thomas AR; Department of Conservative Dentistry and Endodontics, Faculty of Dentistry, Manipal University College Malaysia, Jalan Batu Hamper, Bukit Baru, Melaka, Malaysia, Phone: +60 1127292297, e-mail: rachel.thomas@manipal.edu.my., Reddy TVK; Department of Conservative Dentistry and Endodontics, SRM Institute of Science and Technology, Chennai, Tamil Nadu, India., Tan JY; Department of Conservative Dentistry and Endodontics, Manipal University College Malaysia, Melaka, Malaysia., Qing SEJ; Department of Conservative Dentistry and Endodontics, Manipal University College Malaysia, Melaka, Malaysia., Qing CS; Department of Conservative Dentistry and Endodontics, Manipal University College Malaysia, Melaka, Malaysia., Xuan LY; Department of Conservative Dentistry and Endodontics, Manipal University College Malaysia, Melaka, Malaysia., Pai ARV; Department of Conservative Dentistry and Endodontics, Faculty of Dentistry, Manipal University College Malaysia, Melaka, Malaysia.
Jazyk:	angličtina
Zdroj:	The journal of contemporary dental practice [J Contemp Dent Pract] 2023 Apr 01; Vol. 24 (4), pp. 221-227. Date of Electronic Publication: 2023 Apr 01.
DOI:	10.5005/jp-journals-10024-3471
Abstrakt:	Aim: The purpose of this study was to evaluate and compare the canal transportation tendencies and centering ability of the TruNatomy shaper (TN) and XP-endo shaper (XPS) rotary systems in oval-shaped canals with moderate root curvature (15°-25°), using cone-beam computed tomography (CBCT) imaging. Materials and Methods: Sixty single-rooted permanent human teeth were chosen after considering the inclusion and exclusion criteria. The teeth were divided into two groups ( n = 30). The test group was instrumented with TN files and the other with XPS according to manufacturer's instructions. CBCT images were taken before and after instrumentation to record the root canal distances from mesial, distal, buccal, and lingual borders of the root at 3, 5, and 7 mm distances from the root apex using a specific formula. Statistical analysis was done using the Statistical Package for the Social Sciences software program, version 20.0. The data were analyzed using the unpaired t test. Results: Both TN and XPS were safe for use in oval-shaped canals with moderate root curvature. However, the XPS showed higher buccolingual transportation as compared with TN at 3 mm from the apex and higher mesiodistal transportation at 3 and 5 mm levels from the apex as compared with TN. Conclusion: Canal transportation has been detected in both systems; however, the values obtained were within the safe range (<0.3 mm). Overall, no significant difference was observed between TN and XPS ( p > 0.05) in their canal transportation tendencies and centering ability. Clinical Significance: The study assesses the canal centering and transportation tendencies of the recently launched TN rotary system in extracted teeth with a combination of morphologies. The findings of the study are significant clinically as minimum transportation of the canal, minimal dentin removal, efficient disinfection, and three-dimensional obturation of the root canal are considered important factors in deciding the prognosis of endodontic therapy.
Databáze:	MEDLINE
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