Does thumb sucking or using a pacifier hurt my baby’s teeth?

A pacifier, if it must be used, is easier for the parent to stop than if the child sucks his/her thumb. Either habit should be discouraged prior to the eruption of any permanent front teeth, around six years of age. Both habits can cause the top front teeth to flare forward and the bottom front teeth to be forced back, changing the bite and appearance of the teeth and face. The constant pressure to the roof of the mouth can result in a high, narrow palate. eventually causing crowded permanent teeth.

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