The proportional distribution of caries-inducing streptococci in various parts of the oral cavity of hamsters

Krasse, Bo; Edwardsson, S.

doi:10.1016/0003-9969(66)90171-3

Cited by 73 publications

(66 citation statements)

References 7 publications

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“…Various streptococcal species preferentially colonize different sites in the human mouth; S. salivarius the dorsum of the tongue [Krasse, 1954] and S. sanguis the smooth surfaces of the teeth (Carlsson, 1965(Carlsson, b, 1967 and 5. mutans the pits and fissures of the teeth [Ikeda and Sandham, 1971], The ecological determinants for these differences ob viously also influence the initial establishments of these species in the mouth of infants. 5. salivarius becomes established within a day of birth [Carlsson et al, 1970a] and 5. sanguis after eruption of teeth during the first year [Carlsson et al 1970b].…”

Section: Discussionmentioning

confidence: 99%

Lactobacilli and Streptococci in the Mouth of Children

1975

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The oral establishment of various species of streptococci and lactobacilli has been studied on 25 infants during a period of 5 years. When the children were 3, 4 and 5 years old, their caries and gingival status were recorded. Streptococcus salivarius becomes established within a day of birth, and Streptococcus sanguis after the eruption of the teeth during the first year. Streptococcus mutans was recovered from the infants significantly later and had only become established in half the number of the infants when they had reached 5 years. Lactobacilli were only recovered in low numbers and below 2 years of age they seemed to be mostly transients in the mouth of the infants. The lactobacillus flora which was then isolated, was dominated by Lactobacillus casei and the composition of the flora was significantly different from that which has previously been described for adults.

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Section: Discussionmentioning

confidence: 99%

Lactobacilli and Streptococci in the Mouth of Children

1975

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“…These cocci can be isolated, often in high numbers, from the plaques of experimental animals (Krasse & Edwardsson, 1966) and humans (Carlsson, 1967 ;Krasse, Jordan, Edwardsson, Svensson & Trell, 1968). The growth characteristics of plaque-forming streptococci have not been described, either as adhesive aggregates (plaque) or in broth culture.…”

Section: Introductionmentioning

confidence: 99%

Linear Growth Kinetics of Plaque-forming Streptococci in the Presence of Sucrose

Tanzer

Wood

Krichevsky

1969

Journal of General Microbiology

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Growth of intact plaques of dextran-forming strain SL-I was linear both on a dry weight and DNA basis. Growth of broth cultures of dextran-forming strains SL-I and E-49 was linear with sucrose but exponential with other sugars; non dextran-forming strains 4M4 and JR8LG grew exponentially with all sugars tested. When dextranase was added to slowly growing cultures of dextran-forming strains SL-I and E-49, growth became rapid. Linear growth of strains SL-I and E-49 with sucrose is ascribable to extracellular dextran synthesized by the organisms.

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“…For example, Streptococcus salivarius and S. mitior colonize mucosal surfaces, while S. mutans and S. sanguis are isolated mostly from pellicle-coated tooth surfaces (13,14). The molecular mechanisms mediating the attachment of viridans streptococci to oral epithelium or to mineralized tissues are incompletely understood despite intensive investigation, particularly on the role of S. mutans in the etiology of dental caries.…”

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confidence: 99%