TY - JOUR
T1 - Shaping ability of Reciproc and TF Adaptive systems in severely curved canals of rapid microCT-based prototyping molar replicas
AU - Ordinola-Zapata, Ronald
AU - Bramante, Clovis Monteiro
AU - Duarte, Marco Antonio Hungaro
AU - Cavenago, Bruno Cavalini
AU - Jaramillo, David
AU - Versiani, Marco Aurélio
N1 - Publisher Copyright:
© 2014, Faculdade de Odontologia de Bauru. All rights reserved.
PY - 2014
Y1 - 2014
N2 - Objective: To evaluate the shaping ability of Reciproc and Twisted-File Adaptive systems in rapid prototyping replicas. Material and Methods: Two mandibular molars showing S-shaped and 62-degree curvatures in the mesial root were scanned by using a micro-computed tomography (μCT) system. The data were exported in the stereolitograhic format and 20 samples of each molar were printed at 16 um resolution. The mesial canals of 10 replicas of each specimen were prepared with each system. Transportation was measured by overlapping radiographs taken before and after preparation and resin thickness after instrumentation was measured by μCT. Results: Both systems maintained the original shape of the apical third in both anatomies (P>0.05). Overall, considering the resin thickness in the 62-degree replicas, no statistical difference was found between the systems (P>0.05). In the S-shaped curvature replica, Reciproc significantly decreased the thickness of the resin walls in comparison with TF Adaptive. Conclusions: The evaluated systems were able to maintain the original shape at the apical third of severely curved mesial canals of molar replicas.
AB - Objective: To evaluate the shaping ability of Reciproc and Twisted-File Adaptive systems in rapid prototyping replicas. Material and Methods: Two mandibular molars showing S-shaped and 62-degree curvatures in the mesial root were scanned by using a micro-computed tomography (μCT) system. The data were exported in the stereolitograhic format and 20 samples of each molar were printed at 16 um resolution. The mesial canals of 10 replicas of each specimen were prepared with each system. Transportation was measured by overlapping radiographs taken before and after preparation and resin thickness after instrumentation was measured by μCT. Results: Both systems maintained the original shape of the apical third in both anatomies (P>0.05). Overall, considering the resin thickness in the 62-degree replicas, no statistical difference was found between the systems (P>0.05). In the S-shaped curvature replica, Reciproc significantly decreased the thickness of the resin walls in comparison with TF Adaptive. Conclusions: The evaluated systems were able to maintain the original shape at the apical third of severely curved mesial canals of molar replicas.
KW - Anatomy. Molar
KW - Dental pulp cavity
KW - X-ray microtomography
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U2 - 10.1590/1678-775720130705
DO - 10.1590/1678-775720130705
M3 - Article
C2 - 24918662
AN - SCOPUS:84920944329
SN - 1678-7757
VL - 22
SP - 509
EP - 515
JO - Journal of Applied Oral Science
JF - Journal of Applied Oral Science
IS - 6
ER -