Prevalence and localization of Streptococcus mutans in infants and children

Catalanotto, Frank A.; Shklair, I.L.; Keene, Harris J.

doi:10.14219/jada.archive.1975.0398

Cited by 93 publications

(68 citation statements)

References 6 publications

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“…The increase in mutans streptococci levels between the ages 3 and 5 or 8 was relatively moderate, and in accordance with earlier studies showing a gradual increase in the isolation of S. mutans as the number of teeth increased from newborns to 5 years [Catalanotto et al, 1975]. The frequency of S. mutans has been shown to be about the same at 7 and 12 years [Togelius and Bratthall, 1982].…”

Section: Discussionsupporting

confidence: 91%

Genotypes of Mutans Streptococci Tend to Persist in Their Host for Several Years

Thornqvist

2000

Caries Res

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The aim of this study was to evaluate the consistency of the prevalence of mutans streptococci in a group of Swedish families. Eleven families, which had previously been examined for genotypes of mutans streptococci, were re–examined after 2–5 years. The families consisted of mother, father and a child (mean age 7.2 years at the follow–up examination). One father did not participate. Pooled plaque samples were obtained from buccal and occlusal surfaces. Isolates of mutans streptococci were genotyped using chromosomal DNA digested with restriction endonuclease HaeIII, separated by gel electrophoresis and visualised through UV illumination after ethidium bromid staining. Comparing the DNA fingerprints of mutans streptococci found at baseline and follow–up, 9 children harboured one or two genotypes which were similar on the two sampling occasions. Two of these children had also gained a genotype. The remaining 2 children had lost a genotype each and 1 of them had gained two new genotyes. All 21 adults showed one or two genotypes identical to those found at baseline. Nine of these 21 adults had also lost one genotype. Four of these 9 and additionally 4 of the remaining adults showed one or two new genotypes. Six mother–child pairs shared a genotype at baseline and this pattern remained for five pairs at the end of the study. The results suggest that genotypes of mutans streptococci have a fairly high degree of consistency in children between 3 and 8 years of age as well as in adults, indicating persistence of the strains. However, the results also indicate that some subjects may gain and/or lose genotypes.

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Section: Discussionsupporting

confidence: 91%

Genotypes of Mutans Streptococci Tend to Persist in Their Host for Several Years

Thornqvist

2000

Caries Res

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“…Mesmo confirmando que o número de crianças colonizadas aumenta com a idade e número de dentes decíduos irrompidos 6,30 , o teste de Spearman não mostrou correlação entre o maior ou menor número de dentes e o momento de detecção inicial dos EM nas crianças.…”

Section: Discussionunclassified

“…A cárie dental foi observada unicamente em crianças colonizadas por EM, confirmando a assertiva de que a doença é mais freqüente em crianças colonizadas do que nas não colonizadas EM 19,20,29,30 . A presença ou ausência de cárie nos filhos não pôde ser atribuída aos níveis de cárie ou de EM dos pais, conquanto quase todas as mães preenchessem o quesito de >10 5 EM/ml de saliva, mas sim, com os escores de EM significantemente maiores das crianças com cárie na última visita, confirmando estudo anterior 21 .…”

Section: Discussionunclassified

Aquisição de Estreptococos Mutans e Desenvolvimento de Cárie Dental em Primogênitos

Noce

Rubira²,

Rosa³

et al. 2008

Pesq Bras Odontoped Clin Integr

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Objetivo-Avaliar o momento de aquisição de estreptococos mutans (EM), desenvolvimento de cárie dental e as variáveis a eles associadas no decorrer de 23 meses, em primogênitos de famílias de baixo nível socioeconômico, desde os sete meses de idade.Método-A amostra foi selecionada com base em mães densamente colonizadas por EM, incluindo todos os membros de 14 famílias que conviviam na mesma casa. Foram envolvidos no estudo 14 mães, pais e primogênitos e 8 parentes, na maioria avós. Exames clínicos e radiográficos iniciais determinaram os índices de cárie e condição periodontal dos adultos. Contagens de EM foram feitas em todos os adultos nas duas primeiras visitas. Nas crianças foram avaliados os níveis de EM, o número de dentes e de cáries, em quatro visitas.Resultados-A prevalência de EM nos adultos foi alta, estando ausente em apenas um dos pais. EM foram detectados em 1, 2, 3 e 10 crianças, respectivamente nas visitas #1, 2, 3 e 4. A cárie dental foi detectada em apenas três crianças na última visita (aos 30 meses de idade), as quais apresentaram escores de EM significantemente maiores que as crianças sem cárie, na mesma visita.Conclusão-Exclusivamente a condição social de baixa renda e mães densamente colonizadas por EM não são sinônimo de colonização precoce e alta atividade de cárie em crianças cuidadas em casa. O desenvolvimento de cárie está significantemente associado a escores elevados de EM nas crianças. The sample was chosen based on highly SM-colonized mothers, including all members of 14 families living in the same houses. The study included 14 mothers, 14 fathers and 14 first-borns and 8 relatives (mostly grandparents). Initial clinical examinations and radiographs determined the caries indices and periodontal conditions of the adults. SM count in all adults was made in the first 2 visits. The children were examined for SM count, number of teeth and number of carious lesions, in 4 visits.SM prevalence was high in the adults, being absent in only one of the parents. SM was found in 1, 2, 3 and 10 children in the first, second, third and fourth visits. Dental caries was detected in only 3 children in the last visit (at 30 months), who presented significantly higher SM scores than the children without caries in the same visit.A low income social condition and mothers highly colonized by SM do not mean necessarily early SM colonization and high caries activity in children with oral homecare. Caries development is significantly associated with high SM scores in the children. DESCRITORESEstreptococos mutans; Dentição decídua; Cárie dental DESCRIPTORSMutans streptococci; Primary dentition; Dental caries INTRODUÇÃOOs estreptococos do grupo mutans (EM), principalmente Streptococcus mutans, têm sido associados com o início e desenvolvimento da cárie dental 1 . Entre os fatores que favorecem a infecção inicial das crianças, embora não haja unanimidade entre os autores, estão a baixa condição socioeconômica e escolaridade 2-4 , e a infecção pesada por EM nas mães. Isso porque as mães parecem ser a fo...

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“…mutans in their oral cavities, which is consistent with the findings of human studies in which S . mutans is rarely isolated in the absence of erupted teeth (Carlsson et al, 1975;Berkowitz et al, 1975Berkowitz et al, , 1980Catalanotto et al, 1975;Stiles et al, 1976). There was a limited transmission from mother to infant during the period of breast feeding.…”

Section: B E I G H T O N H H a Y D A Y A N D J W A L K E R mentioning

confidence: 99%

The Acquisition of Streptococcus mutans by Infant Monkeys (Macaca fascicularis) and its Relationship to the Initiation of Dental Caries

Beighton¹,

Hayday²,

Walker³

1982

Microbiology

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The acquisition and transmission of Streptococcus mutans by 16 consecutively born infant monkeys (Macaca fascicularis) was studied. The 16 infant monkeys were weaned in four groups and caged together to form a commune. Transmission from mother to infant occurred infrequently. Streptococcus mutans was isolated from nine of the mothers but only from the dental plaque of two infant monkeys at weaning at which time the predominant streptococci were S. sanguis and S. mitior. One further animal was colonized by S. mutans during the formation of the commune, but only after it was caged with an infant harbouring the same organism. For 46 d after the completion of the commune, the monkeys were fed a starch-based diet during which time S. mutans of serotypes c, e or h were isolated from the faeces of all 16 animals and from the dental plaque taken from the developmental groove of the first deciduous molar of 11 animals. Faecal transmission appeared to be an important factor in the spread of S. mutans between monkeys in the commune. The monkeys were then fed a caries-promoting high sucrose diet resulting in a rapid increase in the proportion of S. mutans in the plaque and in the faeces. Streptococcus mutans serotype e was more frequently isolated from both plaque and faeces and its predominance may in part be due to the production of a bacteriocin active in vitro against S. mutans serotype h and other species of oral streptococci isolated from monkey dental plaque. The proportion of S. mutans in the developmental groove 8 d after the introduction of the high sucrose diet was significantly related to both the caries status of the groove and the total caries score 6 months later. The results suggest that, in this model of human dental caries, S. mutans is the major bacterial factor in the initiation of tooth decay.

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Prevalence and localization of Streptococcus mutans in infants and children

Cited by 93 publications

References 6 publications

Genotypes of Mutans Streptococci Tend to Persist in Their Host for Several Years

Genotypes of Mutans Streptococci Tend to Persist in Their Host for Several Years

Aquisição de Estreptococos Mutans e Desenvolvimento de Cárie Dental em Primogênitos

The Acquisition of Streptococcus mutans by Infant Monkeys (Macaca fascicularis) and its Relationship to the Initiation of Dental Caries

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