歯科矯正用アンカースクリューを用いた上顎臼歯遠心移動と上顎前歯部歯槽骨切り術によって良好な咬合と顔貌変化が得られた1例

DOI Web Site Web Site 参考文献8件
  • 加藤 悠歩
    明海大学歯学部形態機能成育学講座歯科矯正学分野
  • 藤本 舞
    明海大学歯学部形態機能成育学講座歯科矯正学分野
  • 佐々木 会
    明海大学歯学部形態機能成育学講座歯科矯正学分野
  • 山口 浩司
    明海大学歯学部形態機能成育学講座歯科矯正学分野
  • 藤本 航大
    明海大学歯学部形態機能成育学講座歯科矯正学分野
  • 園川 拓哉
    明海大学歯学部病態診断治療学講座口腔顎顔面外科学分野
  • 龍田 恒康
    明海大学歯学部病態診断治療学講座口腔顎顔面外科学分野
  • 嶋田 淳
    明海大学付属明海大学病院
  • 山本 信治
    明海大学歯学部病態診断治療学講座口腔顎顔面外科学分野
  • 須田 直人
    明海大学歯学部形態機能成育学講座歯科矯正学分野

書誌事項

タイトル別名
  • A Case in Which Distalization of Maxillary Molars by Using TADs and Anterior Maxillary Osteotomy Achieved Favorable Occlusion and Facial Profile
  • シカ キョウセイヨウ アンカースクリュー オ モチイタ ジョウガク キュウシ エンシン イドウ ト ジョウガク ゼンシブ シソウ コツキリジュツ ニ ヨッテ リョウコウ ナ コウゴウ ト ガンボウ ヘンカ ガ エラレタ 1レイ

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抄録

Anterior maxillary osteotomies are performed to correct sagittal and vertical discrepancies in the maxilla. For the successful application of an anterior maxillary osteotomy, the molar occlusion should be stable at the time of surgery. Temporary anchorage devices （TADs） are frequently used in the treatment of orthognathic cases, affecting the treatment objectives and planning in many cases. This study reports a case of an anterior maxillary osteotomy in which maxillary molars were distalized by TADs to achieve a favorable occlusion and facial profile. <br>A 29-year-old woman presented to our clinic with a chief complaint of lip protrusion. The molar relationship was Angle Class II and the maxillary and mandibular incisors were significantly proclined with 15.0mm of overjet. She had large SNA and ANB angles, and was diagnosed with Angle Class Ⅱ occlusion with maxillary excess. In the presurgical orthodontics, the bilateral maxillary second molars were extracted and the bilateral maxillary first molars were distalized by using TADs. In the mandible, the bilateral first premolars were extracted, the incisors were retroclined, and the molars were mesialized. The maxillary molars were distalized by 5.5mm to achieve an Angle Class Ⅰ molar relationship. Three-dimensional surgical planning software （ProPlan CMF, Materialise） was used to simulate the surgery. During the anterior maxillary osteotomy, the bilateral maxillary first premolars were extracted. The surgery resulted in posterior movement of ANS and the maxillary incisors by 5.0 and 11.0mm, respectively. <br>In this case, distalization of the maxillary molars enabled a functional Angle Class Ⅰ occlusion to be a­chieved with the application of an anterior maxillary osteotomy alone. Furthermore, significant retrusion of the protruded maxillary incisors improved the facial profile with a favorable chin shape and correction of in­com­pe­tent lips. This case demonstrates that the use of TADs can improve the treatment outcome and open a new window for treatment planning and surgical options in orthognathic treatment.

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