Delayed tooth replantation following root canal filling with calcium hydroxide and MTA: Histomorphometric study in rats

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorEsteves, Jônatas Caldeira
dc.creatorMarão, Heloisa Fonseca
dc.creatorSilva, Pedro Ivo dos Santos
dc.creatorPoi, Wilson Roberto
dc.creatorPanzarini, Sônia Regina
dc.creatorAranega, Alessandra Marcondes
dc.creatorRibeiro, Eduardo Dias
dc.creatorSonoda, Celso Koogi
dc.date2015-12-07T15:35:01Z
dc.date2016-10-25T21:23:28Z
dc.date2015-12-07T15:35:01Z
dc.date2016-10-25T21:23:28Z
dc.date2015
dc.date.accessioned2017-04-06T09:30:13Z
dc.date.available2017-04-06T09:30:13Z
dc.identifierArchives Of Oral Biology, v. 60, n. 9, p. 1254-1262, 2015.
dc.identifier1879-1506
dc.identifierhttp://hdl.handle.net/11449/131413
dc.identifierhttp://acervodigital.unesp.br/handle/11449/131413
dc.identifier10.1016/j.archoralbio.2015.02.002
dc.identifier26093974
dc.identifierhttp://dx.doi.org/10.1016/j.archoralbio.2015.02.002
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/941953
dc.descriptionThe aim of this study was to perform a histomorphometric evaluation of the repair process in rat teeth replanted after root canals were filled with calcium hydroxide (CH) and mineral trioxide aggregate (MTA). Upper right incisors were extracted from 30 rats divided into three groups (n=10). The teeth were stored dry for 60min, after which the pulp and periodontal ligament (PDL) were removed and immersed in acidulated-phosphate sodium fluoride solution. In Group I, the root canals were filled with saline; in Group II, they were filled with CH; and in Group III, they were filled with CH, and the foramen was sealed with an MTA plug. The teeth were replanted, and the animals were sacrificed after 60 days. The sections with teeth were removed for histological preparation (haematoxylin and eosin, H&E). The characteristics of the PDL, cementum, dentine, and alveolar bone, as well as the occurrence of inflammatory and replacement root resorption and apical sealing, were subjected to histological and morphometric analysis (P<0.05). Group I was the most affected by root resorption (mean=67.05%). In Groups II and III, the resorption averaged 42.2% and 11.7%, respectively. Group III was less affected by inflammatory resorption and presented more areas of apical sealing by mineralized tissue (P<0.05). An apical MTA plug improved the repair of the replanted tooth by decreasing surface resorption and repairing mineralized tissue in the periapical region.
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.languageeng
dc.publisherElsevier B. V.
dc.relationArchives Of Oral Biology
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectCalcium hydroxide
dc.subjectMineral trioxide aggregate
dc.subjectPeriodontal ligament
dc.subjectRoot resorption
dc.subjectTooth replantation
dc.titleDelayed tooth replantation following root canal filling with calcium hydroxide and MTA: Histomorphometric study in rats
dc.typeOtro


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