Child Female Humans child female human Acrocephalosyndactylia Acrocephalosyndactyly Acrocephalosyndactyly type 3 Article Case-Control Studies Cephalometry Cleft Lip Cleft Palate Craniosynostosis Electromyography Male Malocclusion, Angle Class I Masseter Muscle Mastication Masticatory Muscles Muscle Contraction Orthodontic Appliances, Removable Phenotype Prognathism Radiography, Panoramic Saethre-Chotzen syndrome Temporal Muscle Twist1 gene acrocephalosyndactyly