Periapical radiographs overestimate root canal wall thickness during post space preparation

dc.creatorSouza, EM
dc.creatorBretas, RT
dc.creatorCenci, MS
dc.creatorMaia, EM
dc.creatorBonetti, I
dc.date2008
dc.dateAUG
dc.date2014-07-30T14:31:11Z
dc.date2015-11-26T16:27:13Z
dc.date2014-07-30T14:31:11Z
dc.date2015-11-26T16:27:13Z
dc.date.accessioned2018-03-28T23:08:08Z
dc.date.available2018-03-28T23:08:08Z
dc.identifierInternational Endodontic Journal. Wiley-blackwell, v. 41, n. 8, n. 658, n. 663, 2008.
dc.identifier0143-2885
dc.identifierWOS:000257484500003
dc.identifier10.1111/j.1365-2591.2008.01410.x
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/59296
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/59296
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1269128
dc.descriptionAim To evaluate differences between anatomic and radiographic measurements of root canal wall thickness (RCWT) after each root canal preparation stage during post placement. Methodology Twenty mandibular premolars with a single canal were decoronated and the roots embedded in resin using a teflon muffle. Roots were sectioned horizontally at a pre-established level and canals were prepared for post placement. Endodontic hand files were used for root canal preparation, followed by Gates Glidden drills and Peeso reamers. Standardized radiographs and photographs at pre-established measurement levels were taken before preparation, after root canal instrumentation, after Gates Glidden preparation and after Peeso enlargement. All images were digitized and RCWT at the mesial and distal walls measured (IMAGETOOL 3.0). Differences between radiographic and anatomic measurements were analysed with paired t-tests. ANOVA was used to compare the percentages of radiographic distortions. Results Regardless of the time-point evaluated, RCWT determined by radiographs were greater than the respective anatomic measurements (P < 0.05). The difference detected at each stage was similar and constant (P > 0.05). Conclusions Throughout preparation for post placement, radiographic images overestimated the RCWT by approximately 25%, regardless of the clinical stage evaluated.
dc.description41
dc.description8
dc.description658
dc.description663
dc.languageen
dc.publisherWiley-blackwell
dc.publisherMalden
dc.publisherEUA
dc.relationInternational Endodontic Journal
dc.relationInt. Endod. J.
dc.rightsfechado
dc.rightshttp://olabout.wiley.com/WileyCDA/Section/id-406071.html
dc.sourceWeb of Science
dc.subjectpost preparation
dc.subjectradiographic images
dc.subjectroot canal wall thickness
dc.subjectEndodontically Treated Teeth
dc.subjectResidual Dentin Thickness
dc.subjectGates-glidden Drills
dc.subjectMandibular Molars
dc.subjectTooth Preparation
dc.subjectPremolars
dc.subjectMorphology
dc.subject3rd
dc.titlePeriapical radiographs overestimate root canal wall thickness during post space preparation
dc.typeArtículos de revistas


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