moderate substantivity, broad spectrum anti-bacterial action, some anti-fungal action, and significant anti-plaque effect, especially when combined with a copolymer or zinc citrate. Triclosan does not cause staining of the teeth. The safety of triclosan has been questioned. Zinc Astringents like zinc chloride provide a pleasant-tasting sensation and shrink tissues. Zinc, when used in combination with other antiseptic agents, can limit the buildup of tartar. See also Virucide References External links Article on Bad-Breath Prevention Products – from MSNBC Mayo Clinic Q&A on Magic Mouthwash for chemotherapy sores American Dental Association article on mouthwash Dentifrices Oral hygiene Drug delivery devices Dosage forms