biotene fluoride toothpaste helps people with a dry mouth to maintain good oral hygiene helps prevent cavities & help fight bad breath. if you suffer from dry mouth you may be experiencing constant dry mouth feeling bad breath cracked lips & cavities. dry mouth is commonly associated with the use of medications & you may experience reduced saliva flow if you are on 3 or more medications., for people with a dry mouth, essential fluoride tooth protection, gentle low foaming formula