Two Mandibular Protrusion Cases of Siblings Treated with Face Bow Headgear in Surgical Orthodontic Treatment.

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Face bow headgear is an extraoral anchorage appliance used for distalization of maxillary molars, controlling growth of the maxilla, reinforced anchorage and so on. In preoperative orthodontic treatment, face bow headgear was used to treat mandibular protrusion in two siblings. Face bow headgear was used to prevent labial tipping of the maxillary incisors during leveling. Their maxillary premolars were not extracted.<BR>Case 1 was a female, 19 years 2 months at the initial examination. She was diagnosed with skeletal mandibular protrusion and facial asymmetry. After preoperative orthodontic treatment, the maxillary incisors slightly tipped labially. After surgical orthodontic treatment, facial asymmetry was improved.<BR>Case 2 was a male, 19 years 1 month at the initial examination. He was diagnosed with skeletal mandibular protrusion and slight facial asymmetry. After preoperative orthodontic treatment, the maxillary incisors did not tip labially. After surgical orthodontic treatment, facial asymmetry was improved.<BR>Since face bow headgear was used in preoperative orthodontic treatment, labial tipping of the maxillary incisors during leveling could be prevented. Face bow headgear also had an effect on facial asymmetry. These cases were treated in a comparatively short time.
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