Experts in the field have determined the following:
- 60% of malocclusion is caused by prolonged finger or thumb sucking.
- 10% of six to eleven year olds suck their thumbs or fingers.
- 85% of thumb suckers have an open bite. Often open bites can not only lead to malocclusion but also TMJ problems due to lateral movements of the jaw to chew food.
- Nearly 60% of thumb suckers experience root resorption, the destruction of a tooth’s root structure.