title: Effect of sodium ortho- and pyrophosphate on supragingival calculus.
mesh_terms: D000328:Adult; D003728:Dental Calculus / Q000517:prevention & control*; D011756:Diphosphates / Q000494:pharmacology*; D006801:Humans; D008297:Male; D012964:Sodium
chemical_list: D011756:Diphosphates; D012964:Sodium