Detection of root canal isthmuses in molars by map-reading dynamic using CBCT images

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dc.creatorPecora, Jesus Djalma
dc.creatorEstrela, Carlos
dc.creatorBueno, Mike dos Reis
dc.creatorPorto, Olavo Cesar Lyra
dc.creatorAlencar, Ana Helena Gonçalves de
dc.creatorSousa Neto, Manoel Damiao de
dc.creatorEstrela, Cyntia Rodrigues de Araújo
dc.date.accessioned2018-10-31T11:39:19Z
dc.date.available2018-10-31T11:39:19Z
dc.date.issued2013
dc.description.abstractThe aim of this study was to detect root isthmuses in maxillary and mandibular molars and evaluate their frequencies using map-reading dynamics in CBCT images. Two hundred extracted human maxillary and mandibular molars were used in ex vivo assay. A consecutive sample of two hundred maxillary and mandibular molars (first and second) was selected from CBCT exams. The isthmuses were detected from the pulp orifice to the apex and were recorded according to their beginning and their end, into categories: 1. begin and end in cervical third; 2. beginning in cervical third and end in middle third; 3. beginning in cervical third and end in apical third; 4. beginning and end in middle third; 5. begin in middle third and end in apical third; 6. beginning and end in apical third; 7. no isthmus. The scans were obtained in different planes with map-reading in axial slices of 0.5 mm/0.5 mm involved the coronal to apical direction. The frequencies of isthmus were analyzed according to the level of root and evaluated by Chi-square test. The level of significance was set at α=0.05. The presence of isthmus detected in maxillary molars was 86% in ex vivo assay and 62% in vivo assay, whereas in mandibular molars was observed 70% in ex vivo assay and 72% in vivo assay. The frequency of isthmus was high in both study models. The map-reading dynamics in CBCT images was found to be precise to detect the localization of isthmus.pt_BR
dc.identifier.citationPÉCORA, Jesus Djalma et al. Detection of root canal isthmuses in molars by map-reading dynamic using cbct images. Brazilian Dental Journal, Ribeirão Preto, v. 24, n. 6, p. 569-574, 2013.pt_BR
dc.identifier.doi10.1590/0103-6440201302380
dc.identifier.issn0103-6440
dc.identifier.issne- 1806-4760
dc.identifier.urihttp://repositorio.bc.ufg.br/handle/ri/16318
dc.language.isoengpt_BR
dc.publisher.countryBrasilpt_BR
dc.publisher.departmentFaculdade de Odontologia - FO (RG)pt_BR
dc.rightsAcesso Abertopt_BR
dc.subjectApical periodontitispt_BR
dc.subjectHealingpt_BR
dc.subjectAnatomypt_BR
dc.subjectIsthmuspt_BR
dc.subjectEndodontic failurept_BR
dc.subjectSuccesspt_BR
dc.titleDetection of root canal isthmuses in molars by map-reading dynamic using CBCT imagespt_BR
dc.typeArtigopt_BR

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