Learn more . .Before use, attach safety shield to toothbrush. Pass the toothbrush head through the center hole on shield (you'll need to stretch it). The shield rests just below the bristles.Wash your hands! Rinse toothbrush thoroughly before and after each use, especially the bristles. Periodically, sterilize in boiling water.Apply a small amount of Jack N' Jill Natural Toothpaste to bristles and brush teeth with a gentle, circular motion.Replace every 8 weeks or earlier.Replace after illness.Replace if silicone is torn.Only to be used under adult supervision.The brush is designed to be used as a toothbrush not a teether and chewing should be avoided.