Yamaoka M, Furusawa K, Uematsu T, Okafuji N, Kayamoto D, Kurihara S
Departments of Oral and Maxillofacial Surgery and Orthodontics, Matsumoto Dental University School of Dentistry, Nagano, Japan.
J Oral Rehabil. 2003 Sep;30(9):914-20. doi: 10.1046/j.1365-2842.2003.01069.x.
In order to study relationship of the hyoid bone and posterior surface of the tongue in prognathism and micrognathia, we focused on the effect of the tongue on the upper airway lumen in 16 patients with Angle's Class II and 51 patients with Angle's Class III, and assessed the position of the hyoid, the depth from the posterior surface of the tongue, from the bottom of the vallecula and from hyoid bone to the posterior pharyngeal wall using lateral cephalograms. We were able to assess significant correlations between the posterior surface of the tongue and hyoid position in Angle's Class III. However, we found no association between them in Angle's Class II. This could be an adaptive feature of the genioglossus in response to hyoid localization to serve a compensatory role to prevent respiratory impairment in micrognathia at risk of apnoea.
为了研究前突和小颌畸形中舌骨与舌后表面的关系，我们重点观察了16例安氏II类患者和51例安氏III类患者中舌对上气道管腔的影响，并使用头颅侧位片评估舌骨位置、舌后表面、会厌谷底部以及舌骨至咽后壁的深度。我们发现安氏III类患者中舌后表面与舌骨位置之间存在显著相关性。然而，在安氏II类患者中未发现二者之间存在关联。这可能是颏舌肌针对舌骨定位的一种适应性特征，起到代偿作用，以防止有呼吸暂停风险的小颌畸形患者出现呼吸障碍。
