Tongue cleaner online store from Dentaldirect? Ditch the Pacifier by Age 2 or 3: There are lots of good reasons to let your child use a pacifier, but in the long term it can affect how his teeth line up. It can also change the shape of the mouth. Talk to your doctor if he’s still using a pacifier past age 3. Babies are born with all their teeth – you can’t see them because they are hidden in the gums. Baby teeth start to break through the gums around 6 months but it is important to start good oral …