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dc.contributor.authorRosa, Tiago Pereirapt_BR
dc.contributor.authorSignoretti, Fernanda Graziela Correapt_BR
dc.contributor.authorMontagner, Franciscopt_BR
dc.contributor.authorGomes, Brenda Paula Figueiredo de Almeidapt_BR
dc.contributor.authorJacinto, Rogério Castilhopt_BR
dc.date.accessioned2015-05-06T01:58:29Zpt_BR
dc.date.issued2015pt_BR
dc.identifier.issn1806-8324pt_BR
dc.identifier.urihttp://hdl.handle.net/10183/115898pt_BR
dc.description.abstractThis study investigated the presence of the Treponema species in longstanding endodontic retreatment-resistant lesions of teeth with apical periodontitis, the association of this species with clinical/radiographic features, and the association among the different target species. Microbial samples of apical lesions were collected from twenty-five adult patients referred to endodontic surgery after unsuccessful root canal retreatment. Nested-PCR and conventional PCR were used for Treponema detection. Twenty-three periradicular tissue samples showed detectable levels of bacterial DNA. Treponema species were detected in 28% (7/25) of the cases. The most frequently detected species were T. socranskii (6/25), followed by T. maltophilum (3/25), T. amylovorum (3/25), T. lecithinolyticum (3/25), T. denticola (3/25), T. pectinovorum (2/25) and T. medium (2/25). T. vicentii was not detected in any sample. Positive statistical association was found between T. socranskii and T. denticola, and between T. maltophilum and T. lecithinolyticum. No association was detected between the presence of any target microorganism and the clinical or radiographic features. Treponema spp. are present, in a low percentage, in longstanding apical lesions from teeth with endodontic retreatment failure.en
dc.format.mimetypeapplication/pdf
dc.language.isoengpt_BR
dc.relation.ispartofBrazilian oral research. São Paulo. Vol. 29, no. 1 (2015), p. 1-7pt_BR
dc.rightsOpen Accessen
dc.subjectRetreatmenten
dc.subjectEndodontiapt_BR
dc.subjectTreponemapt_BR
dc.subjectPeriapical tissueen
dc.subjectPolymerase chain reactionen
dc.subjectTreponemaen
dc.titlePrevalence of Treponema spp. in endodontic retreatment-resistant periapical lesionspt_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb000954960pt_BR
dc.type.originNacionalpt_BR


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