This treatment manual is intended to be used by healthcare professionals to aid in the treatment of orofacial myofunctional disorders (OMDs). It provides an overview of factors related to facial development and oral function, types of OMDs and key indicators/symptoms, as well as considerations regarding the initiation of OMDs. Included in this manual are detailed images of each orofacial muscle, accompanying techniques to assess function, and exercises and stretches for muscles that affect chewing, swallowing, speech, occlusion, TMJ movement, orthodontic stability, and oral hygiene. An easy-to-follow guide to encourage muscle harmony and healthy orofacial development for your patients. Foreword written by Dr. Kevin L. Boyd, DDS, MSc.