Threshold Improvement (Negative Threshold Shift) Following Exposure to Dental Drill Noise
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چکیده
منابع مشابه
Protective Effects of α-Tocopherol on ABR Threshold Shift in Rabbits Exposed to Noise and Carbon Monoxide
Noise induced hearing loss (NIHL) is one of the most important occupational disease worldwide. NIHL has been found potentiate by simultaneous carbon monoxide (CO) exposure. Free radicals have been implicated in cochlear damage resulted from the exposure to noise and due to the CO hypoxia. This study examined whether α-tocopherol administration, as a free radical scavenger, causes the attenuatio...
متن کاملProtective Effects of α-Tocopherol on ABR Threshold Shift in Rabbits Exposed to Noise and Carbon Monoxide
Noise induced hearing loss (NIHL) is one of the most important occupational disease worldwide. NIHL has been found potentiate by simultaneous carbon monoxide (CO) exposure. Free radicals have been implicated in cochlear damage resulted from the exposure to noise and due to the CO hypoxia. This study examined whether α-tocopherol administration, as a free radical scavenger, causes the attenuatio...
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The temporary threshold shift of temperature sensation due to vibration exposure was studied to clarify the significance of frequency and acceleration on it. The discrete frequencies of the vibrations tested were 32, 63, 125, 250 and 500 Hz, and the accelerations were at the level of 2, 4, 8 and 16 g. The threshold shift of warm sensation (TTSw) was markedly, but that of cool sensation was smal...
متن کاملImprovement of Occupational Noise-induced Temporary Threshold Shift by Active Noise Control Earmuff and Bone Conduction Microphone
Among the hazardous factors in the workplace, noise is one of the most difficult to eliminate because enclosure or reduction of its source is often infeasible. This may underlie the fact that many workers are exposed to noise and develop hearing problems. For instance, in Japan, in the year 2000 alone, at least 208,000 workers were exposed to noise and more than 36,000 (17%) of them were found ...
متن کاملChanges in spontaneous neural activity in the dorsal cochlear nucleus following exposure to intense sound: relation to threshold shift.
Previous studies have shown that the dorsal cochlear nucleus exhibits increased spontaneous activity after exposure to intense sound. Such increases were apparent 1-2 months after the exposure and were generally proportional to the shift in response thresholds induced by the same exposure. The purpose of the present study was to determine whether this sound-induced increase in spontaneous activ...
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ژورنال
عنوان ژورنال: The Journal of the Acoustical Society of America
سال: 1969
ISSN: 0001-4966
DOI: 10.1121/1.1973493