Cleidocranial dysplasia, previously known as cleidocranial dysostosis, includes features such as brachycephaly, frontal bossing, a metopic suture groove, hypoplasia or aplasia of the clavicles permitting abnormal approximation of the shoulders, delayed exfoliation of the deciduous teeth, delayed eruption of the permanent teeth, ectopic tooth position, and multiple supplemental and supernumerary teeth.