Orofacial Myology is the science and clinical knowledge of restoring normal and mutual interaction of the orofacial muscle groups (muscles of face and mouth), dentition and respiration that is physiological basis of speaking, chewing and swallowing. It is a program designed to correct orofasical muscle dysfunction and abnormal swallowing patterns.

Orofacial Myofunctional Disorders are any pattern involing oral and/or orofacial muscles that interfere with normal growth, development or function. Correct function of oral and facial muscles is paramount for facial development including tooth alignment, jaw shape and function.