夜间磨牙症对口腔颌面部系统的影响。第一部分：一种用于测量睡眠期间下颌运动的新装置。

Influence of nocturnal bruxism on the stomatognathic system. Part I: a new device for measuring mandibular movements during sleep.

作者信息

Amemori Y, Yamashita S, Ai M, Shinoda H, Sato M, Takahashi J

机构信息

1st Department of Prosthodontics, Faculty of Dentistry, Tokyo Medical and Dental University, Tokyo, Japan.

出版信息

J Oral Rehabil. 2001 Oct;28(10):943-9. doi: 10.1046/j.1365-2842.2001.00757.x.

DOI:10.1046/j.1365-2842.2001.00757.x

PMID:11737566

Abstract

The purpose of this study was to investigate the influence of bruxism on the stomatognathic system. A new device for measuring nocturnal mandibular movements was developed using a PIN photodiode sensor, integrated with polysomnography including electromyography (EMG), electroencephalography (EEG) and electro oculography (EOG). One bruxing event was defined depending upon EMG activities above 5% maximum voluntary contraction (MVC), and mandibular movement for each event was classified into three patterns (clenching, grinding and mix). Three subjects were selected for this study. Two of these reported a bruxing habit and one subject had some symptoms of temporomandibular dysfunction (TMD). Mandibular movement was analysed for these subjects. Frequency and duration of the bruxism events were 4.5-10.9 and 47.8-174.9 s h(-1) respectively. Clenching type bruxism was most frequently observed for all three subjects and EMG activities during clenching were stronger than grinding.

摘要

本研究的目的是调查磨牙症对口颌系统的影响。利用PIN光电二极管传感器开发了一种用于测量夜间下颌运动的新装置，该装置与包括肌电图（EMG）、脑电图（EEG）和眼电图（EOG）的多导睡眠图相结合。根据肌电图活动高于最大自主收缩（MVC）的5%来定义一次磨牙事件，每次事件的下颌运动分为三种模式（紧咬、研磨和混合）。本研究选取了三名受试者。其中两名报告有磨牙习惯，一名受试者有颞下颌关节紊乱病（TMD）的一些症状。对这些受试者的下颌运动进行了分析。磨牙事件的频率和持续时间分别为4.5 - 10.9次/小时和47.8 - 174.9秒/小时。在所有三名受试者中，紧咬型磨牙症最为常见，紧咬期间的肌电图活动比研磨时更强。