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Microbiological profile of untreated subjects with localized aggressive periodontitis
Author(s) -
Faveri Marcelo,
Figueiredo Luciene Cristina,
Duarte Poliana Mendes,
Mestnik Maria Josefa,
Mayer Marcia Pinto Alves,
Feres Magda
Publication year - 2009
Publication title -
journal of clinical periodontology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.456
H-Index - 151
eISSN - 1600-051X
pISSN - 0303-6979
DOI - 10.1111/j.1600-051x.2009.01449.x
Subject(s) - treponema denticola , tannerella forsythia , aggregatibacter actinomycetemcomitans , chronic periodontitis , aggressive periodontitis , microbiology and biotechnology , prevotella intermedia , periodontitis , actinomyces , porphyromonas gingivalis , fusobacterium nucleatum , biology , chemistry , medicine , bacteria , dentistry , genetics , pathology , honeysuckle , alternative medicine , traditional chinese medicine
Aim: The microbial profile of localized aggressive periodontitis (LAgP) has not yet been determined. Therefore, the aim of this study was to evaluate the subgingival microbial composition of LAgP. Material and Methods: One hundred and twenty subjects with LAgP ( n =15), generalized aggressive periodontitis (GAgP, n =25), chronic periodontitis (ChP, n =30) or periodontal health (PH, n =50) underwent clinical and microbiological assessment. Nine subgingival plaque samples were collected from each subject and analysed for their content of 38 bacterial species using checkerboard DNA–DNA hybridization. Results: Red complex and some orange complex species are the most numerous and prevalent periodontal pathogens in LAgP. The proportions of Aggregatibacter actinomycetemcomitans were elevated in shallow and intermediate pockets of LAgP subjects in comparison with those with GAgP or ChP, but not in deep sites. This species also showed a negative correlation with age and with the proportions of red complex pathogens. The host‐compatible Actinomyces species were reduced in LAgP. Conclusion:A. actinomycetemcomitans seems to be associated with the onset of LAgP, and Porphyromonas gingivalis, Tannerella forsythia, Treponema denticola, Campylobacter gracilis, Eubacterium nodatum and Prevotella intermedia play an important role in disease progression. Successful treatment of LAgP would involve a reduction in these pathogens and an increase in the Actinomyces species.