Periodontopathogenic Bacteria
Mostrando 1-12 de 12 artigos, teses e dissertações.
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1. The effects of different restorative materials on periodontopathogens in combined restorative-periodontal treatment
Abstract Objective The aim of the study was to evaluate the association between subgingival restorations and the target periodontopathogenic bacteria (Pg, Td and Pi) in subgingival biofilm during one year after combined restorative-periodontal treatment. Material and Methods Seventeen systemically healthy subjects, who were positive for the presence of t
J. Appl. Oral Sci.. Publicado em: 08/02/2018
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2. Effects of stress hormones on the production of volatile sulfur compounds by periodontopathogenic bacteria
Little is known about the effects of stress hormones on the etiologic agents of halitosis. Thus, the aim of this study was to evaluate in vitro the effects of adrenaline (ADR), noradrenaline (NA) and cortisol (CORT) on bacteria that produce volatile sulfur compounds (VSC), the major gases responsible for bad breath. Cultures of Fusobacterium nucleatum (Fn),
Braz. oral res.. Publicado em: 11/06/2014
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3. Influence of time, toothpaste and saliva in the retention of Streptococcus mutans and Streptococcus sanguinis on different toothbrushes
Objectives: The intraoral transmission of cariogenic and periodontopathogenic species seems to be facilitated by contaminated toothbrushes and other oral hygiene devices. The aim of this investigation was to analyze the in vitro retention and survival rate of Streptococcus mutans and Streptococcus sanguinis on different toothbrushes. The impacts of human sa
J. Appl. Oral Sci.. Publicado em: 2014-06
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4. Impacto da cirurgia bariátrica na condição periodontal e quantificação de bactérias periodontopatogênicas por meio da q-PCR: estudo longitudinal / Impact of bariatric surgery on periodontal status and quantification of periodontopathogenic bacteria using q-PCR: longitudinal survey
Este estudo longitudinal teve como objetivo avaliar o impacto da cirurgia bariátrica na condição periodontal e quantificar bactérias periodontopatogênicas em pacientes submetidos a esta cirurgia. Trata-se de um estudo prospectivo, composto por 50 pacientes submetidos à cirurgia bariátrica por derivação gastrojejunal em Y de Roux, em 3 hospitais do e
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 02/03/2012
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5. Detection and enumeration of periodontopathogenic bacteria in subgingival biofilm of pregnant women
The aim of this study was to use the fluorescence in situ hybridization (FISH) technique to test the hypothesis of qualitative and quantitative differences of 8 periodontopathogens between pregnant and non-pregnant women. This cross-sectional study included 20 pregnant women in their second trimester of pregnancy and 20 non-pregnant women. Probing depth, ble
Braz. oral res.. Publicado em: 2012-10
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6. Detecção de bactérias periodontopatogênicas cultiváveis e não cultiváveis em placas ateromatosas
Periodontal infections consist of a group of inflammatory conditions caused by microorganisms that colonize the tooth surface through the formation of dental biofilm. Chronic infections such as periodontitis have been associated to the development and progression of atherosclerosis. AIM: Detect cultivatable and non-cultivatable periodontopathogenic bacteria
Publicado em: 2009
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7. Detecção precoce de bactérias periodontopatogênicas e a ação de um gel de metronidazol 25% em crianças com Diabetes mellitus tipo I / Early detection of periodontopathogenic bacteria and the effect of a topic metronidazole 25% gel in children with type I Diabetes mellitus
Type I Diabetes mellitus (IDDM) is a metabolic disease characterized by deficiency on the insulin production, causing great systemic alterations, including at the oral cavity. Periodontal disease is more aggressive in diabetic patients, even during the childhood, and presents as etiological microorganisms the Aggregatibacter actinomycetemcomitans (A. actinom
Publicado em: 2007
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8. Estudo da infecção e resposta imune a Porphyromonas gingivalis e do perfil imunogenético em mestiços brasileiros portadores de periodontite crônica severa. / Study of infection and immune response do Porphyromonas gingivalis and immunegenetic profile in Brazilians of mixed race with chronic severe periodontitis.
Periodontitis is a multifactorial disease that begins and is maintained by the aggression of periodontopathogenic bacteria in the subgingival dental biofilm, whose form of clinical manifestation is dependent on the type of immune-inflammatory response caused by the complex pathogen-host interaction. Among these bacteria, Porphyromonas gingivalis has been ass
Publicado em: 2006
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9. Prevalence of Cytolethal Distending Toxin Production in Periodontopathogenic Bacteria
Cytolethal distending toxin (CDT) is a newly identified virulence factor produced by several pathogenic bacteria implicated in chronic infection. Seventy three strains of periodontopathogenic bacteria were examined for the production of CDT by a HeLa cell bioassay and for the presence of the cdt gene by PCR with degenerative oligonucleotide primers, which we
American Society for Microbiology.
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10. Identification of proteases from periodontopathogenic bacteria as activators of latent human neutrophil and fibroblast-type interstitial collagenases.
Activation of latent human fibroblast-type and neutrophil interstitial procollagenases as well as degradation of native type I collagen by supra- and subgingival dental plaque extracts, an 80-kDa trypsinlike protease from Porphyromas gingivalis (ATCC 33277), a 95-kDa chymotrypsinlike protease from Treponema denticola (ATCC 29522), and selected bacterial spec
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11. DNA from Periodontopathogenic Bacteria Is Immunostimulatory for Mouse and Human Immune Cells
Although bacterial DNA (bDNA) containing unmethylated CpG motifs stimulates innate immune cells through Toll-like receptor 9 (TLR-9), its precise role in the pathophysiology of diseases is still equivocal. Here we examined the immunostimulatory effects of DNA extracted from periodontopathogenic bacteria. A major role in the etiology of periodontal diseases h
American Society for Microbiology.
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12. Chemical differences in lipopolysaccharides from Actinobacillus (Haemophilus) actinomycetemcomitans and Haemophilus aphrophilus: clues to differences in periodontopathogenic potential and taxonomic distinction.
While Actinobacillus actinomycetemcomitans has been associated with rapidly progressive periodontal destruction in man, the closely related Haemophilus aphrophilus has not been related to periodontal disease. This may be due to differences in composition and structure of the lipopolysaccharides (LPS) of these dental-plaque bacteria, since LPS probably exerts