The clinical evaluation of a skeletal mandilbular prognathism with multiple impacted teeth.

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This paper presents the clinical evaluation of an assumed rare case skeletal mandibular prognathism with multiple impacted teeth.<BR>The patient, a 12-year-old boy, was first referred to our hospital for permanent teeth eruptiondifficulty. Oral findings revealed remains of deciduous teeth except four first molars and one central incisor and two lateral incisors of the mandible with class DI relationship. Further radiographic examination revealed multiple impacted teeth including eighteen supernumerary teeth.<BR>For ten years, prolonged retentive deciduous teeth and impacted supernumerary teeth had been extracted and then retentive permanent teeth had been pulled out orthodontically. For the duration, positive orthodontics had been done for class M malocclusion, but skeletal mandibular prognathism with open bite had appeared. Then orthognathic surgery, which was Le Fort I osteotomy and sagittal splitting osteotomy of ramus was carried out. Consequently, the patient was able to get satisfactory occlusion.
特定非営利活動法人日本口腔科学会の論文