The maxillary growth impairment which is often presented by patients with cleft lip and palate (CLP) can result in serious skeletal and/or dental pathological conditions in all 3 planes of space (vertical horizontal and transverse). Anteroposterior maxillary retrusion associated with a relative class III malocclusion as well as unilateral or bilateral palatal collapse of the lesser segment of the maxilla producing a narrowing of the dental arch is probably the most recurrent and challenging problem to deal with.This book deals with all aspects of a developing Class III malocclusion in patients with repaired cleft lip and palate.