title: Hydrogen sulfide and periodontal disease.
mesh_terms: D001419:Bacteria / Q000378:metabolism; D006209:Halitosis / Q000209:etiology; D006859:Hydrogen / Q000378:metabolism; D010510:Periodontal Diseases / Q000378:metabolism; D013440:Sulfides / Q000378:metabolism
chemical_list: D013440:Sulfides; D006859:Hydrogen