title: A clinical study of the anticalculus effect of a dentifrice containing soluble pyrophosphate and sodium fluoride.
mesh_terms: D000328:Adult; D002986:Clinical Trials as Topic; D003728:Dental Calculus / Q000517:prevention & control*; D003802:Dentifrices / Q000627:therapeutic use*; D011756:Diphosphates / Q000008:administration & dosage / Q000627:therapeutic use*; D004311:Double-Blind Method; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011897:Random Allocation; D012969:Sodium Fluoride / Q000008:administration & dosage / Q000627:therapeutic use*
chemical_list: D003802:Dentifrices; D011756:Diphosphates; D012969:Sodium Fluoride