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Film and digital periapical radiographs for the measurement of apical root shortening

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Film and digital periapical radiographs for the measurement of apical root shortening

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dc.contributor.author El-Angbawi, Ahmed M.F. es
dc.contributor.author McIntyre, Grant T. es
dc.contributor.author Bearn, David R. es
dc.contributor.author Thomson, Donald J. es
dc.date.accessioned 2014-05-21T12:45:32Z
dc.date.available 2014-05-21T12:45:32Z
dc.date.issued 2012 es
dc.identifier.citation El-Angbawi, Ahmed M.F. ; McIntyre, Grant T. ; Bearn, David R. ; Thomson, Donald J.. Film and digital periapical radiographs for the measurement of apical root shortening. En: Journal of Clinical and Experimental Dentistry, 2012, Vol. 4, No. 5: 281-285 es
dc.identifier.uri http://hdl.handle.net/10550/35291
dc.description.abstract Objectives: The aim of this study was to compare the accuracy and agreement of scanned film and digital periapical radiographs for the measurement of apical root shortening. Study design: Twenty-four film and digital [phosphor plate sensor (PPS)] periapical radiographs were taken using the long-cone paralleling technique for six extracted teeth before and after 1mm of apical root trimming. All teeth were mounted using a typodont and the radiographs were recorded using a film holder and polysiloxane occlusal index for each tooth to ensure standardization during the different radiographic exposures. The film radiographs were scanned and the tooth length measurements for the scanned film and digital (PPS) images were calculated using Image-J-Link 1.4 software (http://rebweb.nih.gov/ij/index.html) for the two groups. The accuracy and agreement among the tooth length measurements from each group and the true tooth length measurements were calculated using intra-class correlation (ICC) tests and Bland and Altman plots. Results: A high level of agreement was found between the true tooth length measurements and the scanned film measurements (ICC=0.979, limit of agreement 0.579 to -0.565) and the digital (PPS) radiograph measurements (ICC= 0.979, limit of agreement 0.596 to -0.763). Moreover, a high level of agreement was found between the scanned film and digital (PPS) radiographs for the measurement of tooth length ICC=0.991, limit of agreement 0.411-0.231. Conclusion: Film and digital (PPS) periapical radiographs are accurate methods for measuring apical root shortening with a high level of agreement. en_US
dc.subject Odontología es
dc.subject Ciencias de la salud es
dc.title Film and digital periapical radiographs for the measurement of apical root shortening es
dc.type journal article es_ES
dc.subject.unesco UNESCO::CIENCIAS MÉDICAS es
dc.type.hasVersion VoR es_ES

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