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KMID : 0355220020270020197
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Journal of Korean Academy Oral Medicine
2002 Volume.27 No. 2 p.197 ~ p.209
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Clinical Study and Development of Piezosensor Based Appliance for Clenching Control
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Abstract
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Parafunctional activity of the masticatory system includes phenoma such as clenching of the teeth and bruxism. Nocturnal parafunctional activity is a problem for many patients in that it can lead to masticatory muscle and temporomandibular pain. Some researches reported that a properly adjusted stabilization appliance would reduce nocturnal bruxism. Others used EMG to evaluate patients with bruxism and agreed that splints decreased muscle activity during the period of their use. The muscle relaxation appliance is the most commonly recommended type of appliance for the treatment of clenching or bruxism. In this study, the appliance based on the muscle relaxation appliance was developed with a microprocessor, real time clock, nonvolatile read write memory and dual serial communication ports. A microprocess, pressure sensors and a battery were embeded into the conventional appliance.
The piezosensor was used as a pressure sensor in this appliance. To investigate the effectiveness of the piezo sensor and to analyze the characteristics of clenching or bruxing, various clenching patterns were studied. Results indicated that it would be helpful for the piezo sensor used in this study to analyze the time, duration and pattern of parafucntion such as clenching or bruxing but further researches are required to analyze the bite force during clenching or bruxing.
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