Allergic rhinitis and occlusal issues

Chronic mouth breathing in youth will cause permanent changes in facial bone structure as the body adapts to this breathing habit.  Children with allergies often are congested and forced to breathe through their mouths more.  A new study found several interesting changes due to allergies and the resulting mouth breathing

1. 3 fold increase in skeletal changes
2. 3 fold increase in posterior crossbite
3. 2 fold increase in overjet
4. Worse the allergic rhinitis is the worse the effects