title: A microbiological study of old plaque in occlusal fissures of human teeth.
mesh_terms: D001419:Bacteria / Q000166:cytology*; D003773:Dental Plaque / Q000382:microbiology*; D006801:Humans; D007778:Lactobacillus / Q000166:cytology; D013291:Streptococcus / Q000166:cytology; D013295:Streptococcus mutans / Q000166:cytology; D013997:Time Factors; D014070:Tooth / Q000033:anatomy & histology*; D014678:Veillonella / Q000166:cytology