下顎前突症患者の舌位および舌骨位に関する研究 (第2報) 舌造影側方頭部X線規格写真撮影法による観察
スポンサーリンク
概要
- 論文の詳細を見る
The position and size of the tongue and position of the hyoid bone in 35 mandibular prognathism patients (13 with open-bite and 22 without open-bite) were compared with those of 29 normal adults and their changes after oblique sagittal splitting osteotomy were analyzed longitudinally by cephalometric radiography with contrast media.<BR>Preoperatively the anteroposterior and vertical dimensions of the tongue were similar to or smaller in both patient groups than normal. The anteroposterior dimension of the tongue was within the value of 2 SDs of the mean for all patients, and the vertical dimension of the tongue was within the value of 2 SDs of the mean for all patients except one. In all of the patients, the tongues were positioned anteroinferiorly and the hyoid bones were positioned anteriorly.<BR>Accordingly, in most cases, the tongue was not important in the development of prognathism. Postoperatively the positions of the tongue and hyoid bone moved posteriorly and were not significantly different from their positions in normal controls.<BR>After mandibular setback, an amount of the setback of the tongue tip was similar to that of the mandible, and an amount of the setback of the tongue root was half of that of the mandible. The reduction of tongue length immediately after operation was attributed to this difference in setback between the tongue tip and root. The increase of tongue height resulted from the inferior shift of the valiecula and the superior shift of the tongue dorsum. However, there was a difference between the two groups in the positional change of the mandible; rotation of the mandible in the group with opne-bite was counterclockwise and it was slightly clockwise in the other group. In the group without open-bite, there was correlation between the setback of the mandible and the changes of the tongue and hyoid bone, but correlation was slight for the group with open-bite.<BR>In the time from immediately postoperative to one year after operation, although the mandible shifted slightly toward the preoperative position, the tongue was stable in size and maintained the position taken immediately after the operation, and the root of the tongue shifted without regard for the migration of the mandible.<BR>According to these results the tongue was considered to have adapted to its new environment due to changing the position of its posterior part.
- 社団法人 日本口腔外科学会の論文
著者
関連論文
- 顎裂部二次的骨移植後当該部に歯の移動を行った両側性唇顎口蓋裂症の1例
- 上顎骨骨延長法を用いて治療した片側性唇顎口蓋裂患者の1例
- 歯科・口腔外科領域感染症に対するCefpodoxime proxetilの基礎的・臨床的検討 : 特にPeptostreptococcusに対する効果について
- 歯科・口腔外科領域の感染症に対するRoxithromycin1日1回300mg投与の臨床的検討
- 創内型の骨延長器による唇顎口蓋裂の上顎骨延長法の評価
- 顎裂自家骨移植並びに二本の歯の自家移植を併用することにより非補綴的に咬合の再構成を行った片側性唇顎口蓋裂の一例
- われわれの行っている頭頸部腫瘍術後患者の嚥下障害に対する機能訓練 : 嚥下機能の経時的変化と患者の主観評価について
- 後退量の大きな上顎前突に対し Le Fort I 型骨切り術を適用した Angle II 級1類不正咬合の一治療例
- CT の三次元構築像による顎骨形態の評価に関する研究 : 計測精度の検討
- 三次元的な下顎枝外側骨片復位・固定システムによる下顎後退術後の後戻りに関する研究
- 光造形3次元モデルを応用した顎変形症の治療経験
- 遊離組織移植による中咽頭再建症例への発音補助装置の応用 - 装着前後の鼻咽腔閉鎖機能および構音機能の変化 -
- 非ステロイド性鎮痛・消炎剤N-22 (Mofezolac) の抜歯後疼痛に対する臨床評価 : メフェナム酸を対象とした二重盲検比較試験
- 三次元的な下顎枝外側骨片復位・固定システムの開発 : 第1報 システムの概要と使用経験
- 遊離前腔皮弁による舌・口底再建後の舌運動について : 第1報: 口底部に進展した歯肉癌症例について
- 非ステロイド性鎮痛・消炎剤N-22 (Mofezolac) の抜歯後疼痛に対する臨床至適投与量の検討 : 二重盲検比較試験
- Three dimensional repositioning and fixation of external fragments of mandibular ramus in sagittal split ramus osteotomy of the mandible. Part 2. Repositioning of the external fragments using double splints method.:Part 2 Repositioning of the external fra
- 舌下面に生じた神経鞘腫の1例
- 下顎前突症患者の舌位および舌骨位に関する研究 (第2報) 舌造影側方頭部X線規格写真撮影法による観察
- Three dimensional repositioning and fixation of the external fragments of mandibular ramus in sagittal split ramus osteotomy of the mandible. Part 3. Observation of postoperative mandibular position.:Part 3 Observation of postoperative mandibular position