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Growth deficiency of the maxilla is a frequent finding in patients with complete unilateral cleft lip and palate. When the sagittal discrepancy is severe, orthodontic treatment combined with orthognathic surgery is required. This article reports the treatment of a girl born with unilateral cleft lip and palate who had lip and palate repair at 3 and 12 months of age, respectively. At 3 years of age, she already showed a severe anteroposterior maxillary deficiency with an anterior crossbite in the deciduous dentition. A Class III skeletal pattern progressively increased during the mixed dentition period. Mandibular prognathism coupled with an extremely hyperdivergent growth pattern was observed. An alveolar bone graft was performed at 10 years of age. At 16 years of age, the ANB angle was −13.7° with a negative overjet of −9.8 mm. Comprehensive orthodontic treatment was conducted with extraction of the mandibular first premolars and maxillary lateral incisors due to dental crowding. Orthognathic surgery was performed at 18.9 years of age involving maxillary advancement of 7.4 mm and mandibular setback of 6.6 mm. Facial and occlusal changes were dramatic. Final nose repair was conducted at 19.7 years of age. At 22 years of age and 3 years after debonding, stability of the occlusal and skeletal results was observed, clearly demonstrating that the objectives established for the rehabilitation have been achieved.A patient had severe maxillary deficiency associated with mandibular prognathism.Occlusal development was monitored.Treatment protocol for unilateral cleft lip and palate was followed.Individualized treatment planning produced good esthetic results.