Do not use on children under age 3. Replace brush (head) every 3 months or sooner if brush head becomes worn.Tilt the brush at a 45° angle against the gumline and sweep or roll the brush away from the gumline. Gently brush the outside, inside and chewing surface of each tooth using short back-and-forth strokes. Gently brush your tongue to remove bacteria and freshen breath. Always rinse toothbrush thoroughly after use. Do not swallow.