title: Ammonia and urea in oral pathophysiology--a literature review.
mesh_terms: D000641:Ammonia / Q000378:metabolism; D003728:Dental Calculus / Q000209:etiology / Q000382:microbiology / Q000503:physiopathology*; D003731:Dental Caries / Q000378:metabolism; D003733:Dental Caries Susceptibility; D006801:Humans; D009067:Mouthwashes; D010510:Periodontal Diseases / Q000209:etiology / Q000378:metabolism / Q000382:microbiology / Q000503:physiopathology*; D012463:Saliva / Q000378:metabolism; D014508:Urea / Q000378:metabolism
chemical_list: D009067:Mouthwashes; D000641:Ammonia; D014508:Urea