Dr. Brown’s PreVent Contoured Glow-in-the-Dark Pacifiers are as adorable as they are intelligent. Designed by a pediatric dentist, the 100% silicone bulb features a patented suction-free air channel and thin stem that reduce pressure inside baby’s mouth – helping prevent dental issues such as crossbite down the road. The Contoured Shield features a butterfly shape that curves away from baby’s face so there’s no irritation on little cheeks and noses.