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A review of microbiologic root canal sampling: updating an emerging picture
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| 1.31 MB | Adobe PDF |
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Resumo(s)
Objectives: The significance of microorganisms in root canals with regard to the aetiology of periapical
infection and the need for crucial bacteria control during treatment are undeniable. In this study, we report and discuss a review of the literature on Microbiological Root Canal Sampling (MRS). The procedure
is analyzed in detail, discussing its powers, limitations and the influence of sample collection procedures
on the incidence of true and false positive results. Data sources: MEDLINE/PUBMED, B-On and library
files of Oporto University were accessed. Selection: Papers were selected using the keywords: “root canal sampling”; “apical periodontitis”; “endodontic pathogens”; “root canal infection”; “Culture”; “molecular
biology”. The references were selected under inclusion criteria such as English language, accessibility, relevance to the theme and scientific rigor. Conclusions: This review illustrated the absolute need to adhere to
strict methodology procedures if valid samples are to be obtained. A combination of Culture and molecular
identification approaches have confirmed the polymicrobial nature of endodontic infections with a predominance of anaerobic bacteria. Nucleic acid-based techniques provide significant additional information
particularly regarding the not-yet-cultivable species of the microbial community, but greatly increase the
budget of the procedure. Thus, assessment of the endodontic microflora, in the context of a polymicrobial biofilm ecosystem, and its relevance to endodontic treatments must rely in the complementariness of
Culture and Metagenomics approaches as they are neither mutually exclusive nor competitive, but strongly
complementary.
Descrição
Palavras-chave
Apical periodontitis Endodontic pathogens Root canal infection Root canal sampling
Contexto Educativo
Citação
Editora
PUCPRESS