Journal of Preventive Medicine and Public Health
- 제28권4호
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- Pages.765-771
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- 1995
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- 1975-8375(pISSN)
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- 2233-4521(eISSN)
치과용 핸드피스에 의한 일시적 진동감각역치 변화
Temporary Threshold Shift of Vibration Sensation by Dental Handpiece
- Kim, Seong-Ah (Department of Preventive Medicine and Public Health, School of Medicine, Kyungpook National University) ;
- Lee, Jong-Young (Department of Preventive Medicine and Public Health, School of Medicine, Kyungpook National University) ;
- Kim, Doo-Hie (Department of Preventive Medicine, College of Medicine, Dongguk University) ;
- Park, Soon-Woo (Department of Preventive Medicine, College of Medicine, Catholic University of Taegu-Hyosung)
- 발행 : 1995.12.01
초록
치과용 핸드피스에서 발산하는 고주파수의 진동에 의한 일시적 진동감각역치 변화를 관찰하고자 치과위생병 28명을 대상으로 34,000rpm의 low-speed handpiece를 진동기구로 사용하였다. 진동에 폭로시키기 전과 후, 치과의사가 스케일링시 취하는 작업자세에 5분간 폭로시킨 후의 진동감각역치를 청력계기의 골전도진동기를 사용하여 250 Hz에서 그들이 주로 사용하는 손의 제2지두수에서 측정한 결과, 각각
This study was performed to investigate the possibility of temporary threshold shift (TTS) of vibration sense could induced by exposure to high-frequency vibration or by work position taking by dentists in drilling or polishing. The vibratory perception thresholds (VPT) of 28 healthy men were measured on the index fingertip pulp of dominant hand at 250 Hz. The vibrating tool used in test was a low-speed handpiece of 34,000 rpm. For the TTS test, the dominant hand was exposed to high-frequency vibration and to work position for five minutes, respectively. The VPTs before and after vibratory exposure were