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Microcomputed tomographic evaluation of canal transportation and centring ability of ProTaper Next and Twisted File Adaptive systems
Author(s) -
Silva E. J. N. L.,
Pacheco P. T.,
Pires F.,
Belladonna F. G.,
DeDeus G.
Publication year - 2017
Publication title -
international endodontic journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.988
H-Index - 119
eISSN - 1365-2591
pISSN - 0143-2885
DOI - 10.1111/iej.12667
Subject(s) - centring , root canal , molar , dentistry , computed tomographic , materials science , orthodontics , mathematics , medicine , computed tomography , engineering , mechanical engineering , surgery
Aim To evaluate canal transportation and centring ability of ProTaper Next ( PTN ) and Twisted File Adaptive ( TFA ) systems using microcomputed tomographic (micro‐ CT ) imaging. Methodology Twenty isthmus‐containing mesial roots of mandibular molars were anatomically matched based on similar morphological dimensions using micro‐ CT evaluation (resolution of 14.25 μm) and assigned to two experimental groups ( n = 10) according to the system used for root canal preparation: PTN and TFA groups. Then, the specimens were scanned again and the matched images of the mesial canals, before and after preparation, were examined at three cross‐section levels (3, 5 and 7 mm from the apical end of the root) to analyse canal transportation and centring ratio. Independent‐samples t ‐test was used to compare canal transportation and centring ratio between the groups. All statistical procedures were performed with a significance level set at 5%. Results Root canals prepared with either PTN or TFA systems had similar canal transportation and centring ratios at all levels ( P > 0.05). Conclusion PTN and TFA had similar results regarding canal transportation and centring ability.