dc.contributorUniv Ctr Maranhao UNICEUMA
dc.contributorUniversidade Estadual Paulista (Unesp)
dc.contributorUniversidade Estadual de Campinas (UNICAMP)
dc.date.accessioned2014-05-20T13:47:12Z
dc.date.accessioned2022-10-05T14:16:05Z
dc.date.available2014-05-20T13:47:12Z
dc.date.available2022-10-05T14:16:05Z
dc.date.created2014-05-20T13:47:12Z
dc.date.issued2008-08-01
dc.identifierInternational Endodontic Journal. Malden: Wiley-blackwell, v. 41, n. 8, p. 658-663, 2008.
dc.identifier0143-2885
dc.identifierhttp://hdl.handle.net/11449/16769
dc.identifier10.1111/j.1365-2591.2008.01410.x
dc.identifierWOS:000257484500003
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/3891700
dc.description.abstractAim 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.languageeng
dc.publisherWiley-Blackwell
dc.relationInternational Endodontic Journal
dc.relation3.015
dc.relation1,791
dc.rightsAcesso restrito
dc.sourceWeb of Science
dc.subjectpost preparation
dc.subjectradiographic images
dc.subjectroot canal wall thickness
dc.titlePeriapical radiographs overestimate root canal wall thickness during post space preparation
dc.typeArtigo


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