It's one of the first questions parents ask us: does the shape of a pacifier actually matter? The short answer is yes — but it depends on your baby's age and what stage they're in.
Here's a clear breakdown so you can make the right choice from day one.
Round (Soother) Pacifiers
Round pacifiers are cylindrical in shape and most closely mimic the feel of a breast nipple. They're typically recommended for:
- Newborns (0–8 weeks)
- Babies who are breastfeeding (lower risk of nipple confusion)
- Babies who simply refuse all other shapes
The round shape is familiar and intuitive for very new babies who are still developing their sucking reflex. Many lactation consultants recommend starting with a round nipple for this reason.
Orthodontic (Flat-Bottom) Pacifiers
Orthodontic pacifiers have a flattened bottom and a contoured shape designed to rest against the tongue and the roof of the mouth more naturally. They're recommended for:
- Babies 8–12 weeks and older
- Long-term use
- Supporting healthy jaw and tooth development
The American Academy of Pediatric Dentistry notes that prolonged use of traditional round pacifiers may contribute to changes in tooth alignment. Orthodontic shapes are specifically designed to reduce that risk by allowing the baby's tongue and palate to develop more naturally.
Which Should You Choose?
For the first two months of life, a round pacifier is typically the easiest for your newborn to accept. After 8–12 weeks, transitioning to an orthodontic pacifier is a smart move for your baby's long-term oral development.
At Mila & Lulu, we offer both shapes in beautiful neutral colorways — because every baby is different, and you deserve options that are both safe and stylish. Explore our pacifier collection → Here