Bacteria and oral cavity: a new story to tell

D Mucchi

Article ID: 6332
Vol 35, Issue 3S1, 2021
DOI: https://doi.org/10.23812/21-3supp1-1
Received: 9 July 2021; Accepted: 9 July 2021; Available online: 9 July 2021; Issue release: 9 July 2021

Abstract

Periodontal diseases include a mild and reversible form named gingivitis (GI), and periodontitis (PD) that is the main cause of tooth loss in adults. GI, that affects gums and coronal junctional epithelium, as well as periodontitis, that is characterized by loss of connective tissue attachment, are caused by a persistent inflammatory response promoted by alteration of periodontal biofilm. The aim of the study was to test whether the prevalence of each species was associated with a particular clinical condition. Periodontal evaluation of 756 unrelated patients was performed by the Periodontal Screening and Recording (PSR) system. Subgingival samples were obtained from the site with the worst PSR score. A selection of eleven bacterial species was evaluated by quantitative real time PCR. Quantitative and qualitative analyses help to better understand the microbial changes associated with different stages of periodontal disease.


Keywords

gingivitis;periodontitis;oral microbiota;biofilm;red complex


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