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Safety of large preparation with different instruments in the buccal canals of maxillary molars
Author(s) -
de Camargo Ericson Janolio,
Duarte Marco Antonio Hungaro,
Alcalde Murilo Priori,
Só Marcus Vinicius dos Reis,
Vasconcelos Bruno Carvalho de,
Silva Emmanuel João Nogueira Leal,
Plotino Gianluca,
Vivan Rodrigo Ricci
Publication year - 2021
Publication title -
australian endodontic journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.703
H-Index - 34
eISSN - 1747-4477
pISSN - 1329-1947
DOI - 10.1111/aej.12481
Subject(s) - molar , root canal , dentistry , significant difference , orthodontics , maxillary first molar , materials science , medicine
This study aimed to evaluate the influence of large apical preparations with Reciproc (REC), Hyflex CM (HCM) and Twisted File Adaptive (TFA) systems using micro‐computed tomography (MCT). Ninety mesiobuccal (MB) and distobuccal (DB) root canals of maxillary molars ( n = 45) were scanned using MCT before and after the shaping procedures. The root canals ( n = 15) were prepared until REC 40.06, HCM 40.04 and TFA 35.04. The root canal transportation (RCT), centring ability (CA), change in volume of the root canal and at different levels (VC), remaining dentine thickness (RDT), removal of dentine wall (RDW) and working time (WT) were evaluated. Data were analysed using the Kruskal–Wallis and Dunn tests, and the one‐way ANOVA and Tukey tests with a level of significance set at 5%. No significant difference among the instruments was found regarding the RCT, CA, RDT, RDW and WT ( P > 0.05), in larger apical preparations in curved MB and straight DB canals of maxillary molars.