When tongue muscles are not properly developed, particularly in kids, it can cause a number of developmental issues that affect oral health, teeth, sleep, speech, swallowing, and more.
Myofunctional therapy has to do with exercises for the muscles that are used to chew and swallow. You can think of this as physical therapy or a personal trainer for the tongue.
The first video (above) focuses on some basics with myofunctional expert and RDH Jessica Glover.
In the second video (below) Jessica explains the process of the screening and exam.