Oral mikrobiologi - bakterier i detalj Odontologi GU Wikia
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Genomes of 6 clinical S. mutans isolates of different origins, one isolate of S. sobrinus (DSM 20742) and one isolate of S. ratti (DSM 20564) were sequenced and comparatively analyzed. S. mutans-derived active Gtfs bind to a variety of non-MS oral bacteria (e.g. Streptococci, Lactobacilli and Actinomy-ces)[38]. Of note, saliva samples from children with S-ECC contain significant amounts ofS.mutans Gtfs[36].Addition-ally, Gtf-encoding genes are induced in S. mutans by co-cultivation with Streptococcus oralis and A. naeslundii 2010-09-11 · In clinical studies, probiotic bacteria have decreased the counts of salivary mutans streptococci (MS). We compared the effects of probiotic Lactobacillus strains on the biofilm formation of Streptococcus mutans. The bacterial strains used included four S. mutans strains (reference strains NCTC 10449 and Ingbritt and clinical isolates 2366 and 195) and probiotic strains Lactobacillus rhamnosus The prevalence of dental caries and obesity is high as both raise significant health problems. The objective of this study was to evaluate the relationship between dental caries, the number of salivary colonies forming units of Mutans Streptococci (MS) and Lactobacillus (LB), and the nutritional status in a group of children from Transylvania.
Quivey RG Jr., et al. Acid adaptation in Streptococcus mutans UA159 alleviates sensitization to environmental stress due to RecA deficiency. Background: This is an initial study of the biofilm of Streptococcus mutans (S. mutans) and Aggregatibacter actinomycetemcomitans (A.a). S. mutans and A.a are bacteria that cause infection diseases in the oral cavity.
Mutans streptococci (MS) are bacteria showing several cariogenic traits. mutans streptococci (MS)-positive versus all MS-negative tests at or before the age of 1.5 years. Using logistic regression, differences were statistically significant at ages 3 ( n = 83, p = 0 The reviewed literature shows that mutans streptococci are ubiquitous in children aged 7 years and older in Africa, Europe, and North America.
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This observational study used a sample of 154 Mutans streptococci and caries in young children The main MS species, S. mutansand S. sobrinus, are facultative anaerobes, non-motile and catalase-negative gram-positive cocci.5,6 The central role of MS in the aetiology of ECC is now well established. The viridans streptococci are a large group of commensal streptococcal Gram-positive bacteria species that are α-hemolytic, producing a green coloration on blood agar plates (hence the name "viridans", from Latin "vĭrĭdis", green). The pseudo-taxonomic term "Streptococcus viridans" is often used to refer to this group of species, but writers who do not like to use the pseudotaxonomic term Mutans streptococci have been strongly associated with dental caries.
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Mutans streptococci are considered to be causative agents of dental caries and have been classified into 5 species: Streptococcus cricetus (serotype a), S. rattus (serotype b), S. mutans (serotypes c, e, and f), S. sobrinus (serotypes d and g 1984-09-01 Dental caries is an infectious and transmissible disease. The mutans streptococci (MS) are infectious agents most strongly associated with dental caries. Earlier studies demonstrated that infants acquire MS from their mothers and only after the eruption of primary teeth. The heritability of mutans streptococci colonisation in 48 pairs MZ and in 26 pairs of DZ twins was estimated to be 52%. The non-shared environment contribution was estimated to be 48%.
A polysaccharide-producing species of STREPTOCOCCUS isolated from human dental plaque. Svenska synonymer
The effect of caries-preventive measures in mot- hers on dental caries and the oral presence of the bacteria Streptococcus mutans and lactobacilli in their children. av C Åkesson · 2011 — Streptococcus mutans, Lactobacillus reuteri, probiotika, karies, T-RFLP. EX0427 Självständigt arbete i livsmedelsvetenskap – magisterarbete.
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Mutans streptococci colony counts per ml of saliva were performed on Mitis-Salivarius Bacitracin agar collected on the first day and 14 days post-intervention. Results: A statistically significant reduction (p<0.001) in salivary mutans streptococci counts was recorded in both groups B and C after 14 days of probiotic ingestion.
S. mutans is one of the eight species belonging to the mutans group of Streptococci which are differentiated based on their heterogenicity in their genomic structure. It was first discovered and named by J Kilian Clarke in 1924 which were isolated and identified from carious lesions.
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Streptococcus mutans is the main pathogen causing dental caries and is one of the pathogens of infective endocarditis. In 1924, scientists isolated a bacterium Streptococcus mutans är en bakterie som är världens ledande orsak till karies. Den hör till släktet streptokocker, är sfärisk till formen och grampositiv. relate the findings to mutans streptococci (MS) colonization, fissure morphology, and caries development. MATERIAL AND METHODS: The material consisted av Z Kercso · 2013 — Syfte: Syftet med denna in vitro studie var att testa 8 olika växtextrakt (kanel, nejlika, tranbär, aronia, humle, lime, grönt te, timjan) på två av Streptococcus mutans Prevalence of transmission of genotypes of mutans streptococci between family members of three generations and the effect of antimicrobial treatment of the the human leukocyte antigen (HLA) complex, colonization of mutans streptococci immunoglobulin A (IgA) antibodies against mutans streptococcal antigens.
Streptococcus mutans är en bakterie som är världens ledande orsak till karies. Den hör till släktet streptokocker , är sfärisk till formen och grampositiv . Denna bakterie hittas i människans mun, främst på tandytan [ 1 ] . Streptococcus mutans is a gram-positive facultative anaerobic bacterium that belongs to a group of mutans streptococci consisting of S. sobrinus and several other species (Figure 4).