The patient was 11-year-old boy who had Angle class I bimaxillary protrusion multiple, impacted supernumerary teeth, odontoma and dentigerous cyst. The impacted supernumerary teeth, odontoma and dentigerous cyst were removed and 4_??_14_??_5 were extracted to facilitate orthodontic treatment. Following orthodontic treatment, good class I occlusion was obtained and facial convexity was completely improved.
There has been no evidence of cyst recurrence in about 4years.
