Abstract
The authors reported a case of 26 year-old woman with cleidocranial dysostosis about her physical examination and oral-surgical and orthodontic treatment. The general findings of the present patient were as follows : deficient closure of anterior fontanel and posterotemporal fontanel, partial defect of right clavicle, hypoplasia of maxilla and nasal bone, slight prognathism of mandible, delayed or failed eruption of permanent teeth, impacted teeth with many suppernumerary teeth and failure of symphysial closure. Chromosomal analysis made by the peripheral leukocyte culture technic in the present patient showed 46, XX, Gp^+. As a result of the authors' oral-surgical and orthodontic treatment, twelve impacted teeth erupted partially.
