Shaping ability of Reciproc and TF Adaptive systems in
severely curved canals of rapid microCT-based prototyping molar
replicas |
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| Authors: | Ronald ORDINOLA-ZAPATA Clovis Monteiro BRAMANTE Marco Antonio Húngaro DUARTE Bruno Cavalini CAVENAGO David JARAMILLO Marco Aurélio VERSIANI |
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| Institution: | 1.Department of Operative Dentistry, Endodontics and Dental Materials, Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil.;2.Department of Endodontics, Loma Linda School of Dentistry, University of Loma Linda, Loma Linda, United States.;3.Department of Endodontics, Ribeirão Preto School of Dentistry, University of São Paulo, Ribeirão Preto, SP, Brazil. |
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| Abstract: | 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 microcomputed tomography (μCT) system. The data were
exported in the stereolitograhic format and 20 samples of each molar were printed
at 16 µm 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. |
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| Keywords: | Dental pulp cavity X-ray microtomography Anatomy Molar |
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