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Prevalence of Treponema spp. in endodontic retreatment-resistant periapical lesions

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Prevalence of Treponema spp. in endodontic retreatment-resistant periapical lesions

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Título Prevalence of Treponema spp. in endodontic retreatment-resistant periapical lesions
Autor Rosa, Tiago Pereira
Signoretti, Fernanda Graziela Correa
Montagner, Francisco
Gomes, Brenda Paula Figueiredo de Almeida
Jacinto, Rogério Castilho
Abstract This 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.
Contido em Brazilian oral research. São Paulo. Vol. 29, no. 1 (2015), p. 1-7
Assunto Endodontia
Treponema
[en] Periapical tissue
[en] Polymerase chain reaction
[en] Retreatment
[en] Treponema
Origem Nacional
Tipo Artigo de periódico
URI http://hdl.handle.net/10183/115898
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