title: Effects of age and length of exposure to fluoridated water on root surface fluoride concentration.
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D002170:Canada; D002648:Child; D005459:Fluorides / Q000008:administration & dosage / Q000032:analysis* / Q000378:metabolism; D006801:Humans; D008875:Middle Aged; D013997:Time Factors; D014092:Tooth Root / Q000032:analysis* / Q000378:metabolism; D014881:Water Supply
chemical_list: D005459:Fluorides