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Publisher: Peytchinski Publishing Ltd.
ISSN: 1312-773X (Online)
Issue: 2020, vol. 26, issue3
Subject Area: Dental Medicine
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DOI: 10.5272/jimab.2020263.3288
Published online: 13 August 2020
Original article
J of IMAB. 2020 Jul-Sep;26(3):3288-3292
A MICRO-CT ASSESSMENT OF DENTINAL DAMAGE AFTER SHAPING OF OVAL-SHAPED ROOT CANALS
Irina Tsenova-Ilieva
, Radosveta Vassileva, Emilia Karova,
Department of Conservative Dentistry, Faculty of Dental Medicine, Medical University - Sofia, Bulgaria.
ABSTRACT:
Purpose: The aim of the current study was to assess the dentinal damage after shaping of oval-shaped root canals of lower incisors with SAF by means of micro-computed tomography.
Materials and methods: Twenty single-rooted, non-endodontically treated lower incisors with straight roots were included in the experiment. The specimens were scanned using high-resolution micro-computed tomographic imaging before and after root canal preparation with 1.5 mm Self-adjusting file. Preoperative and postoperative cross-sectional images of the teeth were screened to identify the presence of dentinal defects. The McNemar test was used to determine significant differences before and after instrumentation. The level of significance was set at p≤0.05.
Results: The Self-adjusting file system insignificantly increased the percentage rate of microcracks in root canals of lower incisors compared with preoperative specimens (p>0.05).
Conclusions: The shaping of oval-shaped root canals with Self-adjusting file did not result in significant damage of radicular dentin.
Keywords: root canalshaping, dentinal microcracks, Self-adjusting filesystem, micro-computed tomography,
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Please cite this article as: Tsenova-Ilieva I, Vassileva R, Karova E. A micro-CT assessment of dentinal damage after shaping of oval-shaped root canals. J of IMAB. 2020 Jul-Sep;26(3):3288-3292.
DOI: 10.5272/jimab.2020263.3288
Correspondence to: Irina Tsenova-Ilieva, Department of Conservative Dentistry, Faculty of Dental Medicine, Medical University – Sofia; 1, St Georgi Sofiyski Blvd., 1413 Sofia, Bulgaria; E-mail: irinatsenova@yahoo.com
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Received: 12 September 2019
Published online: 13 August 2020