Orthognathic surgery for jaw deformities due to congenital and acquired abnormalities

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  • MORI Yoshiyuki
    Department of Dentistry, Oral and Maxillofacial Surgery, Jichi Medical University

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  • 先天異常・後天異常による顎変形に対する顎矯正手術
  • センテン イジョウ ・ コウテン イジョウ ニ ヨル ガク ヘンケイ ニ タイスル ガク キョウセイ シュジュツ

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Abstract

<p>In orthognathic surgery for jaw deformity caused by congenital or acquired factors, the presence of scar tissue makes it difficult to move bone segments and easy to bring on relapse.</p><p>　Maxillary distraction is increasingly used for the correction of severe maxillary retrusion in patients with cleft lip and palate.</p><p>　A two-stage surgical approach consisting of maxillary distraction and mandibular setback was used to correct jaw deformities with severe maxillary retrusion secondary to cleft lip and palate. These procedures resulted in stable occlusion and an improved facial profile.</p><p>　On the other hand, mandibular distraction for Hemifacial macrosomia and/or Progressive Condylar Resorption (PCR) should be considered carefully.</p>

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