Analysis of Apical Root Transportation Associated with Protaper Universal F3 and F4 Instruments by Using Digital Subtraction Radiography
Contribuinte(s) |
Universidade Estadual Paulista (UNESP) |
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Data(s) |
20/05/2014
20/05/2014
01/06/2010
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Resumo |
Introduction: The aim of this study was to assess the occurrence of apical root transportation after the use of Pro Taper Universal rotary files sizes 3 (F3) and 4 (F4). Methods: Instruments were worked to the apex of the original canal, always by the same operator. Digital subtraction radiography images were produced in buccolingual and mesiodistal projections. A total of 25 radiographs were taken from root canals of human maxillary first molars with curvatures varying from 23-31 degrees. Quantitative data were analyzed by intraclass correlation coefficient and Wilcoxon nonparametric test (P = .05). Results: Buccolingual images revealed a significantly higher degree of apical transportation associated with F4 instruments when compared with F3 instruments in relation to the original canal (Wilcoxon test, P = .007). No significant difference was observed in mesiodistal images (P = .492). Conclusions: F3 instruments should be used with care in curved canals, and F4 instruments should be avoided in apical third preparation of curved canals. (J Endod 2010;36:1052-1055) |
Formato |
1052-1055 |
Identificador |
http://dx.doi.org/10.1016/j.joen.2010.02.004 Journal of Endodontics. New York: Elsevier B.V., v. 36, n. 6, p. 1052-1055, 2010. 0099-2399 http://hdl.handle.net/11449/39732 10.1016/j.joen.2010.02.004 WOS:000278474500021 |
Idioma(s) |
eng |
Publicador |
Elsevier B.V. |
Relação |
Journal of Endodontics |
Direitos |
closedAccess |
Palavras-Chave | #Digital radiography #endodontics #instrumentation #root canal preparation #root transportation |
Tipo |
info:eu-repo/semantics/article |