Abstract
We reported a case of Cleidocranial dysostosis which had been observed in our pediatric clinic for 6 years. The patient, who was a 13-year-old boy, visited our clinic with a complaint of the delayed eruption of upper front permanent teeth. Small stature with partial hypoplasia of the clavicle, and a bellshaped thorax and underdevelopment of sinus frontalis were found as general clinical findings. Persistence of 7 deciduous teeth, delayed eruption of 13 permanent teeth and 6 supernumerary teeth were also found as aspects of the oral status. All of the deciduous teeth and impacted supernumerary teeth were extracted. Marsupialization treatment was applied for 6 impacted permanent teeth. Traction treatment was applied for 3 impacted teeth which had not been exposed after the observation period of 12 months. Eleven impacted permanent teeth were exposed after 6 year 3 months from the initial visit.
