Prevalence of Streptococcus mutans with different colonial morphologies in human plaque and saliva

Emilson, Claes‐Göran

doi:10.1111/j.1600-0722.1983.tb00771.x

Cited by 97 publications

(103 citation statements)

References 23 publications

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“…Among the 84 S. sobrinus strains isolated from the children's oral cavities (12 children), 16 distinct genotypes were detected: 12 genotypes were detected at the time of initial acquisition in 12 children, and 4 distinct genotypes were detected during the follow-up period in 3 children. During the follow-up period, only one child (9) was infected by three distinct genotypes, and two children (from pairs 2 and 20) harbored two distinct genotypes. Among the 27 S. sobrinus strains isolated from six mothers' oral cavities, 8 distinct genotypes were found.…”

Section: Resultsmentioning

confidence: 99%

Longitudinal Study of Transmission, Diversity, and Stability of Streptococcus mutans and Streptococcus sobrinus Genotypes in Brazilian Nursery Children

et al. 2004

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The aim of this study was to perform a follow-up evaluation of the Streptococcus mutans and Streptococcus sobrinus colonization profile of children's oral cavities, which included the pattern of vertical transmission from mother to child, genotypic diversity, and stability of the strains. The subjects were 16 mother-child pairs, who were monitored for 20 months. Samples of saliva, tongue dorsum, alveolar ridge mucosa, and dental plaque from the children were collected bimonthly. Saliva samples from the mothers were also collected. After isolation and identification, the arbitrarily primed PCR method was performed for the genotypic characterization of S. mutans (968 isolates) and S. sobrinus (111 isolates). At the time the strains were acquired, the children harbored one to four distinct genotypes of S. mutans and only one genotype of S. sobrinus. Although S. mutans prevalence and genotypic diversity were greater than those of S. sobrinus, the presence of matching genotypes of S. mutans and S. sobrinus was similar (in 81.25 and 83.33% of mother-child pairs, respectively), suggesting vertical transmission for both species. This longitudinal study showed an increase in genotypic diversity of S. mutans in the oral cavity during the follow-up period: most of the initially acquired genotypes persisted, normally those genotypes transmitted by the mother, and some were lost during follow-up; new strains were also acquired. In conclusion, S. mutans and S. sobrinus genotypes acquired from maternal or alternative sources may show effective persistence in the oral cavity and/or transitory detection in the children's mouths, reflecting the continuous development of oral microbiota in children.

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Section: Resultsmentioning

confidence: 99%

Longitudinal Study of Transmission, Diversity, and Stability of Streptococcus mutans and Streptococcus sobrinus Genotypes in Brazilian Nursery Children

et al. 2004

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“…Periodontal diseases provide substrates for bacteria that differ from those colonizing under healthy conditions (22) . In the subgingival biofilm of less destructive forms of periodontal disease, Gram positive species, including Streptococcus and Actinomyces, are expected to be isolated (23) . Conversely, more destructive periodontitis produces periodontal pockets, which favor the establishment of anaerobic flora (24) .…”

Section: Discussionmentioning

confidence: 99%

Oral colonization by Streptococcus mutans and its association with the severity of periodontal disease in adults

Contardo

Díaz

Lobos

et al. 2011

Rev. Clin. Periodoncia Implantol. Rehabil. Oral

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Background: Streptococcus mutans (S. mutans) is associated with the onset of caries. Since root exposure in patients affected by periodontitis leads to higher caries rates, progressively more severe forms of periodontal disease might associate with elevated counts of S. mutans. Aim: To determine whether increasingly destructive forms of periodontal disease are associated with higher counts of S. mutans in untreated patients. Methods: 206 subjects aged 20-75 were classified into three groups according to the severity of periodontal disease: 1) gingivitis, 2) chronic slight periodontitis and 3) chronic moderate or chronic severe periodontitis. S. mutans counts (cfu/mL) were obtained by direct counting on selective agar plates from saliva samples. A cumulative proportional logistic regression model was adjusted for S. mutans counts. Results: The model failed to show differences by gender, but periodontal diagnosis had a significant effect on S. mutans counts depending on age. While in the group with moderate and severe periodontitis the probability of having high counts of S. mutans significantly increased with age, the probability remained unchanged in individuals with chronic slight periodontitis or gingivitis. Conclusion: High S. mutans levels appear directly co-associated with increased severity of periodontal disease at older ages in untreated patients.

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“…The agar plates were incubated anaerobically at 37°C for 2 d. Colonyforming units (CFU) of MS were counted and identified by their colony morphology (21) and divided into two groups for categorical analysis: medium-high counts (>10 5 CFU/ml), also referred to as 'higher', and low counts (≤10 5 CFU/ml). These thresholds are commonly used in dental research and known to predict high or low risk of caries (22) .…”

Section: Participantsmentioning

confidence: 99%

BMI, eating habits and sleep in relation to salivary counts of mutans streptococci in children – the IDEFICS Sweden study

Arvidsson

Birkhed

Hunsberger

et al. 2015

Public Health Nutr.

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Objective: The objective of the present study was to investigate the association between salivary counts of mutans streptococci (MS) and children's weight status, while considering associated covariates. MS ferments carbohydrates from the diet and contributes to caries by lowering the pH in dental plaque. In adults, high counts of MS in saliva have been associated with overweight, but this has not been shown in children. Design: Cross-sectional study investigating salivary counts of MS, BMI Z-score, waist circumference, meal frequency, sugar propensity and sleep duration, in children. Setting: West Sweden. Subjects: Children (n 271) aged 4-11 years. Results: Medium-high counts of MS were positively associated with higher BMI Z-score (OR = 1·6; 95 % CI 1·1, 2·3). Positive associations were also found between medium-high counts of MS and more frequent meals per day (OR = 1·5; 95 % CI 1·1, 2·2), greater percentage of sugar-rich foods consumed (OR = 1·1; 95 % CI 1·0, 1·3) and female sex (OR = 2·4; 95 % CI 1·1, 5·4). A negative association was found between medium-high counts of MS and longer sleep duration (OR = 0·5; 95 % CI 0·3, 1·0). Conclusions: BMI Z-score was associated with counts of MS. Promoting adequate sleep duration and limiting the intake frequency of sugar-rich foods and beverages could provide multiple benefits in public health interventions aimed at reducing dental caries and childhood overweight.

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Prevalence of Streptococcus mutans with different colonial morphologies in human plaque and saliva

Cited by 97 publications

References 23 publications

Longitudinal Study of Transmission, Diversity, and Stability of Streptococcus mutans and Streptococcus sobrinus Genotypes in Brazilian Nursery Children

Longitudinal Study of Transmission, Diversity, and Stability of Streptococcus mutans and Streptococcus sobrinus Genotypes in Brazilian Nursery Children

Oral colonization by Streptococcus mutans and its association with the severity of periodontal disease in adults

BMI, eating habits and sleep in relation to salivary counts of mutans streptococci in children – the IDEFICS Sweden study

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