When should a pacifier habit stop?
There are differing opinions on when and certainly no consensus on how. Most children will eventually give up the pacifier by age 3.
However, even though the prolonged use of a pacifier may cause some changes to the eruption of teeth, or even the shape of the jaws, if your child receives comfort and security from the pacifier, then that should be an important consideration. Any potential effects to the teeth can always be remedied at some future time. In fact, many of the effects will correct themselves as the grown up teeth are beginning to erupt.