Orthodontic nipple shape is asymmetrical with a scooped bottom: Flatter to allow for more room for natural sucking motion, slimmer to reduce pressure on jaw and teeth, and narrower to help prevent teeth misalignment
Natural shape is modeled after mom's nipple while breastfeeding and won't cause nipple confusion (Based on Market Research, 2017, tested with 307 pacifier users)
Heart-shaped shield fits perfectly under baby's nose for easy breathing