A form of malocclusion in which the lower teeth are outside (to the cheek side) of the upper teeth. (brianpalmerdds.com)
Today, at least 75 % of kids have some level of dental malocclusion. (drstevenlin.com)
Orthodontic treatment is needed for malocclusions caused by pressure of the tongue on the front teeth during a tongue thrust swallow, or pressure on the lateral teeth because of an unusually wide tongue. (tonguetie.net)