2009年12月1日 · Humans harbour distinct subgingival biofilms that represent those microorganisms that colonized and adapted to a particular host. If undisrupted, subgingival biofilms evolve from early communities with a limited number of species to complex mature entities with great species diversity.

2019年4月24日 · The subgingival microflora became more complex in children with gingivitis: the predominant group were microorganisms from the red complex (Porphyromonas gingivalis, Treponema denticola, Tannerella forsythia) and the frequency of microorganisms from the orange complex also increased.

Our study provides a global-scale framework for the ecological events in subgingival communities that underline the development of periodontitis. The association, in periodontitis, between inflammation, community biomass and community structure and their role in disease progression warrant further investigation.

Smoking can induce a pathogen-enriched subgingival microflora through increasing the pathogenesis of subgingival biofilm ([1]) and decreasing the host immune response for bacterial clearance ([2]). Some periodontal pathogens can also subvert the host immune response in turn, forming a vicious circle ([3]).

Subgingival plaque samples were taken from the mesial aspect of each tooth in 185 subjects (mean age 51 +/- 16 years) with (n = 160) or without (n = 25) periodontitis. The presence and levels of 40 subgingival taxa were determined in 13,261 plaque samples using whole genomic DNA probes and checkerboard DNA-DNA hybridization.

Subgingival plaque samples were taken from the mesial aspect of each tooth in 185 subjects (mean age 51 ± 16 years) with (n = 160) or without (n = 25) periodontitis. The presence and levels of 40 subgingival taxa were determined in 13.261 plaque samples using whole genomic DNA probes and checkerboard DNA-DNA hybridization.

2018年4月1日 · The aims of this study were to (1) investigate the microbial diversity in subgingival plaques in healthy and diseased people using 16S rRNA metagenomics and quantitative polymerase chain reaction (qPCR), and (2) clarify the variation in the composition of subgingival microbiota in the diseased state in Taiwanese population.

The bacterial complexes reflect microbial succession in developing subgingival and supragingival dental biofilms and gingivitis [32, 35–37]. Early colonizers include members of the green, yellow, and purple complexes.

2017年2月3日 · In this study, we quantify subgingival pathogens of A. actinomycetemcomitans, P. gingivalis, P. intermedia, T. forsythia and total bacteria with the 16S rRNA based real-time PCR and tested the clinical parameters in adolescents among different time points after orthodontic treatment to assess whether the microbial and periodontal parameters coul...

The composition and diversity of the subgingival microflora and their oligotypes in health and levels of periodontal disease were investigated in this study on older postmenopausal women. The 16S rRNA gene was sequenced using the Illumina MiSeq platform in …