title: Effect of vitamin-iron preparation on tooth staining studied.
mesh_terms: D000293:Adolescent; D002648:Child; D003773:Dental Plaque / Q000150:complications; D004311:Double-Blind Method; D006801:Humans; D007501:Iron / Q000009:adverse effects*; D011897:Random Allocation; D014075:Tooth Discoloration / Q000139:chemically induced*; D014815:Vitamins / Q000009:adverse effects
chemical_list: D014815:Vitamins; D007501:Iron