Development of system to predict oral and maxillofacial function after orthodontic treatment

正畸治疗后口腔颌面部功能预测系统的开发

• 批准号: 14571946
• 负责人: FUJIKI Tatsuya
• 金额: $ 2.3万
• 依托单位: OKAYAMA UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2002
• 资助国家: 日本
• 起止时间: 2002 至 2003
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-14571946/
• 关键词: Deglutition; Tongue movement; Mandibular protrusion; Sagittal split ramus osteotomy; Maxillofacial morphology; 前歯部開咬; 舌背の動き

The purpose of the present study was to investigate any change in deglutitive tongue movement following the correction of mandibular protrusion by surgical orthodontic treatment. The subjects were 7 patients with mandibular protrusion. Swallowing events within 1 month before orthognathic surgery and within 4 months after orthognathic surgery were recorded by cineradiography. We established 7 stages of deglutition, and analyzed the deglutitive tongue movement and the time between the respective stages. The data obtained before and after orthognathic surgery and those of controls were compared. The contract between the tongue and the palate and the position of the tongue tip during deglutition changed after orthognathic surgery and became similar to those of the controls. On the other hand, the movement of the front and mickile parts of dorsal tongue and the time of the nasopharyngeal closure during deglutition did not change after orthognathic surgery and remained different from those of the controls. Our findings suggest that the contact of tongue and palate and tongue tip position during deglutition adapted to the corrected oral and maxillofacial morphology but that the movement of the front and middle parts of dorsal tongue and the time of the nasopharyngeal closure during deglutition may have been affected by pharyngeal constrictors rather than by the oral told maxillofacial morphology.

本研究的目的是调查通过外科正畸治疗矫正下颌前突后吞咽舌运动的任何变化。研究对象为7例下颌前突患者。正颌外科手术前1个月内和术后4个月内的吞咽事件均采用放射成像术记录。我们建立了7个吞咽阶段，并分析了吞咽的舌运动和各个阶段之间的时间。比较正颌外科手术前后和对照组的数据。正颌手术后舌与腭部的收缩和吞咽时舌尖的位置发生了变化，与对照组相似。而正颌手术后吞咽时舌前部和舌滑部的运动及鼻咽闭合时间无明显变化，与对照组相比仍有差异。我们的研究结果表明，吞咽时舌与腭部的接触和舌尖的位置与矫正的口腔颌面形态相适应，但吞咽时舌背前部和中部的运动和鼻咽闭合时间可能是受咽缩肌的影响，而不是受口腔所告知的颌面形态的影响。

项目成果

Miyawaki, S.: "Salivary flow rates during relaxing, clenching and chewing-like movement with maxillary occlusal splints."Am.J.Orthod.Dentofac.Orthop.. (In press). (2004)

Miyawaki, S.：“上颌咬合夹板在放松、咬紧和咀嚼样运动期间的唾液流量。”Am.J.Orthod.Dentofac.Orthop..（正在出版）。

Fujiki T: "Change in deglutitive tongue movement following correction of mandibular protrusion by surgical orthodontic treatment"Dysphagia. (In press). (2004)

Fujiki T：“通过外科正畸治疗矫正下颌前突后吞咽舌头运动的变化”吞咽困难。

宮脇正一: "矯正臨床に機能評価をどう取り入れていくか-口腔の基本的機能ならびに異常機能について-睡眠時のブラキシズムについて-最新の知見と矯正患者への対応-"中・四国矯正歯科学会雑誌. 15. 25-28 (2003)

Shoichi Miyawaki：“如何将功能评估纳入正畸临床实践 - 关于口腔的基本功能和异常功能 - 关于睡眠期间的磨牙症 - 最新发现以及如何应对正畸患者 -”中央四国正畸学会杂志 15。 25-28（2003）

Miyawaki S: "Factors associated with the stability of titanium screws placed in the posterior region for orthodontic anchorage."Am.J.Orthod.Dentofac.Orthop.. 124. 373-378 (2003)

Miyawaki S：“与放置在后牙区域用于正畸支抗的钛螺钉稳定性相关的因素。”Am.J.Orthod.Dentofac.Orthop.. 124. 373-378 (2003)

Shouichi miyawaki: "Kenji Takada and William R. Proffit Editors ; Orthodontics in the 21st Century -Where are We Now? Where Are We Going?"Osaka University Press. 216(161-164) (2002)

Shouichi miyawaki：“Kenji Takada 和 William R. Proffit 编辑；21 世纪的正畸学 - 我们现在在哪里？我们要去哪里？”大阪大学出版社。