Pit, fissure and smooth surface caries of first and second permanent molars in urban Nigerians.
D000293:Adolescent; D000328:Adult; D003731:Dental Caries / Q000453:epidemiology* / Q000473:pathology; D005260:Female; D006801:Humans; D008297:Male; D008963:Molar / Q000473:pathology*; D009549:Nigeria