title: [Prevalence of streptococcus mutans on the tooth surface--age factors].
mesh_terms: D000328:Adult; D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D006801:Humans; D013295:Streptococcus mutans / Q000302:isolation & purification*; D014070:Tooth / Q000382:microbiology*