[A bacteriological study of frontal deciduous dental caries in children].
Bacteriological factors of caries in anterior deciduous teeth were studied by analysing the flora in 25 children, aged 3 to 4 years. Samples were collected from the caries of labial surfaces of maxillary anterior deciduous teeth, including caries lesions, white spot margins of these lesions and caries-free smooth enamel surfaces. Plaques were obtained from the cervical third areas of the maxillary labial anterior deciduous tooth surfaces in caries-free children and served as controls. The results show the detectable rate of S. mutans and their amount against total streptococci in the 3 sampling sites are both significantly higher than that of caries-free children. This suggests S. mutans may be the major pathogenic bacteria of caries of anterior deciduous teeth.
Liu
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Y
School of Stomatology, Shanghai Second Medical University.
Liu
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Z
D002675:Child, Preschool; D003731:Dental Caries / Q000382:microbiology*; D005260:Female; D006801:Humans; D008297:Male; D013291:Streptococcus / Q000302:isolation & purification*; D013295:Streptococcus mutans / Q000302:isolation & purification*; D014094:Tooth, Deciduous / Q000382:microbiology*