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The influence of the degree of maxillary defect closure and palatal shape of maxillary prosthses on the ability to speech

上颌骨缺损闭合程度及上颌假体腭部形状对言语能力的影响

基本信息

批准号：
06671981
负责人：
MINAMI Masataka
金额：
$ 0.32万
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：
1994
资助国家：
日本
起止时间：
1994 至 1995
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-06671981/
关键词：
Maxillofacial Prosthesis Maxillary Prosthesis Obturator Palatonasal closure level speech

项目摘要

Purpose : The goals of treatment to patient having maxillary resection is to overcome deterioration of the oral major functions and disorders in the speech function, the masticatory function and the swallowing function due to their maxillary defect.To achieve these goals from a prosthetic point of view, sufficiently thorough seal of maxillary defect area should be accomplished with a maxillary prosthesis. In order to evaluate the treatment effects of the denture, quantitative evaluation is required of the degree of maxillary defect closure and of the improved speech capabilities after the denture is in place. This study examined the method to evaluate the degree of recovery of speech function for installing a maxillary prosthesis in clinic treatment room.Measurements : Using both omni-directional and uni-directional microphones and an MDrecorder (Mini Disc recorder), I conducted the following experiment :1) I made digital recordings of a short sentence in Japanese "Sakura no hana ga sa … More kimashita (The cherry blossoms were in full bloom)" read by an adult in an anechoic chamber using both types of microphones. The reader had a full set of his natural teeth and did not have any abnormalities in his pronunciation (hereafter refereed to as the "normal person").2) I also made digital recordings of the same sentence read by normal persons and patients installing a maxillary prosthesis in clinical room.3) I made further recordings of the same sentence spoken by the patient after changing the palatal shape of denture plate.4) I then analyzed the clarity of speech in the various recordings by having five adults who did not have any hearing impairment listen to the recordings. In addition to, the recordings were analyzed on a personal computer.Results and Discussion1) Normal person(1) In the anechoic chamber : No difference was seen in the waveforms of the omni-directional and unidirectional recordings.(2) In the clinic treatment room : Various extraneous noises were heard in the treatment room recordings using both types of microphones. However, after comparing the two readings, the uni-directional microphone was judged to pick up less noise, so I decided that it was more suitable for recording voices in the treatment room.2) Patient installing a maxillary prosthesis(1) The speech clarity in the recordings was fine. This may be because a good seal was made between the oral and nose cavities by the denture.3) The palatal shape of the denture plate seemed to seal the oral cavity well on both sides, which accounts for the clarity of speech. When I produced a denture which could change the palatal shape of the denture the patient died. Therefore I had to quit this experiment prematurely. Less

目的：上颌骨切除术后患者的治疗目标是克服上颌骨缺损导致的口腔主要功能的退化以及语言功能、咀嚼功能和吞咽功能的障碍，从修复的角度来看，要实现这些目标，上颌骨缺损区必须用上颌骨修复体进行充分彻底的封闭。为了评价义齿的治疗效果，需要定量评价上颌骨缺损的闭合程度和义齿安装后言语能力的改善情况。本研究探讨了在临床治疗室安装上颌义齿后言语功能恢复程度的评估方法，测量方法：采用全向和单向麦克风及微型录音机（MD recorder），进行了以下实验：1）对日语“Sakura no hana ga sa”短句进行数字录音 ...更多信息 kimashita（樱花盛开）”由一个成年人在消声室使用两种类型的麦克风读取。这位读者有一副完整的天然牙齿，发音也没有任何异常（以下简称“正常人”）。2）我还对正常人和在临床室安装上颌骨假体的患者朗读的同一句话进行了数字录音。3）我对患者在改变义齿板的腭部形状后说出的同一句话进行了进一步的录音。4）然后，我让五名没有听力障碍的成年人听录音，分析了各种录音中的语音清晰度。结果与讨论1）正常人（1）在电波暗室中：全向和单向记录的波形无差异。(2)在诊所治疗室：使用两种类型的麦克风在治疗室录音中听到各种外来噪音。然而，在比较两个读数后，判断单向麦克风接收到的噪音更少，因此我决定它更适合在治疗室记录声音。2）安装上颌假体的患者（1）录音中的语音清晰度很好。这可能是因为义齿在口腔和鼻腔之间形成了良好的密封。3）义齿板的腭部形状似乎在两侧都很好地密封了口腔，这解释了言语的清晰度。当我制造出一种可以改变义齿腭部形状的义齿时，病人死了。因此，我不得不过早地放弃这个实验。少