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Quantitative Evaluation for Palatopharyngeal Closure Level on Patients with Maxillary Prostheses and The Construction of Its Data Base

上颌假体患者腭咽闭合程度的定量评价及数据库构建

基本信息

批准号：
04671207
负责人：
MINAMI Masataka
金额：
$ 1.41万
依托单位：
OSAKA DENTAL UNIVERSITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (C)
财政年份：
1992
资助国家：
日本
起止时间：
1992 至 1993
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-04671207/
关键词：
Maxillofacial Prosthesis Maxillary Prosthesis Obturator Palatopharyngeal incompetency Database

项目摘要

Patients having maxillary defects may show deterioration of the mouth s major functions and disorders in the speech function, the masticatory function and the swallowing function due to their maxillary defect. In order to overcome these functional losses and disorders, maxillary prostheses are ordinarily applied from a prosthetic point of view. However, because of the size of the defect part in a maxilla and the path of placement of the denture, an enough seal for the lost part is difficult to secure. Though the maxillary prostheses might provide a satisfactory level of recovery concerning the speech, masticatory and swallowing functions, air and moisture leakage to the nose are other troubles. The conventional methods, such as judging the articulation level, blowing a straw (time measurement), blowing an oboe (length) or checking the fogging status and shape on a mirror or a stainless steel pipe in front of the patient's nose, are difficult to use to evaluate the sealing level of the … More lost part in a maxilla for a maxillary prosthesis quantitatively and objectively. A method to measure a water column by inhaling has also been introduced. This method requires the handling of complicated equipment.In order to quantitatively and objectively evaluate the palatopharyngeal closure level for installing a maxillary prosthesis, I used a differential-pressure transducer and an respiratory amplifier. The variation of the intraoral pressure while blowing and sucking before and after installing a maxillary prosthesis was measured on four healthy males aged 24 to 25 and eight patients with incomplete palatopharyngeal closure caused by a partial defect of their maxilla. I used these measured data of the mouth's inside for analysis and evaluation. For our evaluation, I found that quantitative and an objective evaluation of the palatopharyngeal closure level was possible by the following procedures : 1) Obtain the maximum pressure, the stable pressure inside the mouth, as well as the stable pressure maintenance interval and the pressure attenuation time while blowing and sucking before installing a maxillary prosthesis for standard values. 2) Measure the same items as item 1) above after installing the maxillary prosthesis, and compared these values of before and after installing the maxillary prosthesis.In addition, the use of the various data concerning these patients, such as clinical records, intraoral photography, X-ray pictures, voice recordings and mandibular movement, can all be seen at once by using a multi-media personal computer. We also found that this data handling convenience offers relatively easy construction of data bases for this research. Less

上颌骨缺损患者由于上颌骨缺损，口腔主要功能退化，言语功能、咀嚼功能和吞咽功能障碍。为了克服这些功能损失和障碍，通常从修复的角度应用上颌骨假体。然而，由于上颌骨中缺损部分的大小和义齿放置的路径，难以确保对缺失部分的足够密封。虽然上颌骨修复体可以提供一个令人满意的恢复水平，有关的语言，咀嚼和吞咽功能，空气和水分泄漏到鼻子是其他问题。传统的方法，如判断清晰度水平、吹吸管（时间测量）、吹双簧管（长度）或检查患者鼻前的镜子或不锈钢管上的雾化状态和形状，难以用于评价密封水平。 ...更多信息定量客观地评价上颌骨缺损程度。还介绍了一种通过吸入测量水柱的方法。这种方法需要操作复杂的设备。为了定量和客观地评估安装上颌骨假体的腭咽闭合水平，我使用了压差传感器和呼吸放大器。对4名24 ~ 25岁健康男性和8名上颌骨部分缺损导致腭咽闭合不全的患者，在安装上颌骨修复体前后，测量了吹气和吸吮时口内压的变化。我用这些口腔内部的测量数据进行分析和评估。对于我们的评估，我发现可以通过以下程序对腭咽闭合水平进行定量和客观的评估：1）获得最大压力、口腔内的稳定压力以及吹吸时的稳定压力维持间隔和压力衰减时间在安装上颌假体之前为标准值。2)在安装上颌骨修复体后，测量与上述第1）项相同的项目，并将安装上颌骨修复体前后的这些值进行比较，此外，使用多媒体个人计算机，可以一次性查看这些患者的各种数据，如临床记录、口内摄影、X线照片、语音记录和下颌运动。我们还发现，这种数据处理的便利性提供了相对容易的数据库建设这项研究。少