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Relationship between the Functional Variation of Tongue in Developmental Stages and the Three-dimensional Morphologies of Palate and Dentition.

发育阶段舌头功能变异与上腭和牙列三维形态的关系。

基本信息

批准号：
08457566
负责人：
ISHIKAWA Masaaki
金额：
$ 4.54万
依托单位：
Tokyo Medical and Dental University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
1996
资助国家：
日本
起止时间：
1996 至 1998
项目状态：
已结题

项目摘要

The purposes of this study were to combine the morphological analysis of dentition and palate by the noncontact three-dimensional measurement device with the functional analysis of tongue by the ultrasound diagnostic equipment, constructing the integrated analytic system for children who seemed to have functional variation of the tongue movement in developmental stages. This study also aimed the clinical application of this system, such as the diagnosis of open bite cases before the treatment and the evaluation of treatment effect.At the first year the ultrasound diagnostic equipment (Toshiba Medical, SSA-250A) were introduced to determine the most suitable echo window for the functional analysis of tongue movement. The cephalostat unit with the probe stabilizer was fabricated to compare echo images quantitatively between intra/inter individuals. From the first year to the second year, both the morphology of the palate and the tongue surface movement of young patients on the frontal plane with or without open bite were evaluated by the integrated system. There seemed to be wider variation in the palate volume before the deciduous canines line of the tongue-thrust group than that of normal group. It is also suggested that a child with tongue thrust swallows using a large depressed area in the tongue, whereas a normal child without tongue thrust forms a rather narrow groove in the central portion of the tongue when swallowing.At the third year, effects of the habit breakers on the tongue surface movement for patients with open bite were evaluated by the ultrasound images. Applying removable habit breakers with the tongue crib to the tongue-thrust group made the momentum of the marginal tongue surface of them smaller, although the groove in the central portion of the tongue of the tongue-thrust group were still wider than that of the normal-group when swallowing.

本研究的目的是将非接触式三维测量装置对牙列和腭部的形态分析与超声诊断设备对舌的功能分析相结合，构建发育期舌运动功能变异儿童的综合分析系统。本研究还针对该系统的临床应用，如开牙合病例的治疗前诊断和治疗效果评价，在第一年引进超声诊断设备（东芝医疗，SSA-250 A），以确定最合适的回波窗口进行舌运动功能分析。制作了带有探头稳定器的头颅固定装置，以定量比较个体内/个体间的回波图像。从第一年到第二年，无论是腭的形态和舌面运动的年轻患者在额面开或不开的集成系统进行了评估。推舌组乳牙线前腭部容积的变异范围较正常组大。也有人建议，一个孩子与舌推力吞咽使用一个大的凹陷区域的舌头，而一个正常的孩子没有舌推力形成一个相当狭窄的凹槽在中央部分的舌头swalling.At第三年，习惯打破者的影响开咬患者的舌面运动进行了评估的超声图像。将可拆卸的习惯打破器与舌槽一起应用于推舌组，使推舌组的边缘舌面动量变小，但在吞咽时推舌组的舌中部凹槽仍较正常组宽。