Cleidocranial dysplasia(CD) is an autosomal dominant syndrome which is characterized by several skeletal malformations such as non-closed fontanelles, skeletal abnormalities of the maxilla and mandible and absence of clavicles. Mid-facial hypoplasia and mandibular prognathism are mostly seen jaw abnormalities in CD. In this study, the combined orthodontic-surgical treatment of a patient with CD with class Ⅲ malocclusion and multiple unerupted primary and deciduous teeth is presented. Cleidocranial dysplasia (CD) is an autosomal dominant syndrome which is characterized by several skeletal malformations such as non-closed fontanelles, skeletal abnormalities of the maxilla and mandible and absence of clavicles. Mid-facial hypoplasia and mandibular prognathism are mostly seen jaw abnormalities in CD . In this study, the combined orthodontic-surgical treatment of a patient with CD with class III malocclusion and multiple unerupted primary and deciduous teeth is presented.