To the top

Page Manager: Webmaster
Last update: 9/11/2012 3:13 PM

Tell a friend about this page
Print version

Subgingival bacterial clu… - University of Gothenburg, Sweden Till startsida
To content Read more about how we use cookies on

Subgingival bacterial clusters and serum antibody response as markers of extent and severity of periodontitis in adult Chinese

Journal article
Authors Gunnar Dahlén
W. M. Luan
Ulf Dahlgren
P. P. Papapanou
V. Baelum
O. Fejerskov
Published in European Journal of Oral Sciences
Volume 124
Issue 2
Pages 179-187
ISSN 0909-8836
Publication year 2016
Published at Institute of Odontology, Section 3
Pages 179-187
Language en
Keywords factor analysis, immune response, periodontitis, periodontal microbiology, PRC China, elderly chinese, actinobacillus-actinomycetemcomitans, microbiota, disease, plaque, progression, prevalence, Dentistry, Oral Surgery & Medicine
Subject categories Dentistry


This study evaluated the associations between clinical, microbiological, and antibody activity manifestations of periodontitis in 123 adult rural Chinese subjects with no dental intervention. All participants were registered for full-mouth clinical attachment level (CAL) and pocket probing depth (PD) measurements, and microbial samples were taken from four sites and analyzed for 18 different bacterial species using the checkerboard'. Serum from each individual was analyzed to determine the antibody activity against the same 18 species. Exploratory factor analysis disclosed two microbial factors - Factor 1, consisting of seven species associated with periodontal health (early colonizers'); and Factor 2, consisting of eight species associated with periodontitis (putative periodontopathogens') - which explained 87% of the variation among the microbial variables. Factor 2 was consistently associated with disease-severity measures, whereas the early colonizer' factor was not. The antibody response showed weak or no correlations with bacterial load or with disease severity. We conclude that the bacteria investigated are resident in the subgingival plaque; that their load and proportions in the pocket may be ecologically driven; and that the antibody response is based on bacterial carrier state rather than on disease. The different antibody-response pattern found between the individuals may suggest that each individual could be classified as a good or a weak immune responder.

Page Manager: Webmaster|Last update: 9/11/2012

The University of Gothenburg uses cookies to provide you with the best possible user experience. By continuing on this website, you approve of our use of cookies.  What are cookies?