Other Information: Products containing stannous fluoride may produce surface staining of the teeth. Adequate toothbrushing may prevent these stains which are not harmful or permanent and may be removed by your dentist. This Crest is specially formulated to help prevent staining. See your dentist regularly. Misc: Neutralizes plaque bacteria, even around the gum line. Clinically proven healthier gums. www.pg.com. www.crest.com.