Effects of functional jaw orthopedics with maxillary expansion on palatal morphology, mandibular growth, airway dimensions, and oral function in Class II malocclusion: A randomized controlled trial.

Two functional jaw orthopaedic appliances increased palatal volume and mandibular length in Class II patients during puberty, though neither affected airway dimensions, and greater palatal expansion was associated with improved functional outcomes.

A plain-English summary of the study's own findings — we don't add our own claims or interpretation. Read the full paper for the complete methods and results, and apply your own clinical judgement.