Kills germs that cause bad breath, plaque and the gum disease Gingivitis. ADA Accepted - American Dental Association. Proven to kill germs by millions on contact. Use Tartar Control Listerine Antiseptic Twice Daily to Help: Prevent and fight tartar build-up; Fight bad breath; Kills germs between teeth; Prevent and reduce plaque; Prevent and reduce Gingivitis. Tartar Control Listerine Antiseptic has been shown to help prevent and reduce supragingival plaque accumulation and gingivitis when used in a conscientiously applied program of oral hygiene and regular professional care. It has also been shown to help reduce the formation of tartar above the gumline. Its effect on periodontitis has not been determined. Council of Scientific Affairs, American Dental Association.