Lactobacilli and streptococci in the mouth of children.
D002452:Cell Count; D002675:Child, Preschool; D003731:Dental Caries / Q000175:diagnosis; D005881:Gingiva / Q000382:microbiology; D006801:Humans; D007223:Infant; D007778:Lactobacillus / Q000254:growth & development* / Q000302:isolation & purification; D009055:Mouth / Q000382:microbiology*; D010512:Periodontal Index; D013291:Streptococcus / Q000254:growth & development* / Q000302:isolation & purification