The application of the Moss theory of the functional matrix to the use of the functional appliance.
D000202:Activator Appliances; D006801:Humans; D008310:Malocclusion / Q000209:etiology / Q000503:physiopathology*; D008410:Masticatory Muscles / Q000503:physiopathology; D008445:Maxillofacial Development; D009968:Orthodontic Appliances, Removable