THE EFFECT OF NOISE-INDUCED HEARING LOSS ON DENTISTS
This paper presents noise problems associated with the use of air-turbine drills in dental practice. Two hundred and fifty dentists (male and female) were randomly selected from the faculty of dentistry as well as the dentists who worked private in Tehran. The results indicated that the mean value of sound pressure level produced by the high-speed drills was 69.1 db. Most of the energy from the drills lied in the high frequency range, 6000- 8000 Hertz. Audiological evaluations showed that the loss of hearing in all age groups and years in dental practice lie in 6000 Hertz which has a positive correlation with the value of sound pressure level in this frequency. The hearing loss in the right ear of women was slightly higher than the left one, while this was not true in men. The hearing loss in the female group was greater than in male group.
this paper presents noise problems associated with the use of air-turbine drills in dental practice. two hundred and fifty dentists (male and female) were randomly selected from the faculty of dentistry as well as the dentists who worked private in tehran. the results indicated that the mean value of sound pressure level produced by the high-speed drills was 69.1 db. most of the energy from the...متن کامل
Introduction: Exposure to hazardous noise induces one of the forms of acquired and preventable hearing loss that is noise-induced hearing loss (NIHL). Considering oxidative stress as the main mechanism of NIHL, it is possible that myricetin can protect NIHL by its antioxidant effect. Therefore, the present study aimed to investigate the preventive effect of myricetin on NIHL. <br /...متن کامل
Objective(s): Noise-induced hearing loss (NIHL) is the major cause of acquired hearing loss. Celecoxib, a cyclooxygenase-2 (COX-2) inhibitor, is a non- steroidal anti- inflammatory drug (NSAID) with known antioxidant and antineoplastic activity. Therefore, we monitored the extent of temporary noise- induced threshold shifts (TTS) and cochlear damage caused by high level 4- kHz noise exposure t...متن کامل
INTRODUCTION The purpose of this study was to evaluate noise levels in dental offices and to estimate the risk and prevalence of tinnitus and noise-induced hearing loss (NIHL) in practicing dentists. MATERIALS AND METHODS First, measures were collected of sound pressure levels produced by dental handpieces and dental suction in the University of Oklahoma Health Sciences Center (OUHSC) College...متن کامل
Introduction: After presbycusis, noise-induced hearing loss is the second most common cause of acquired hearing loss. Numerous studies have shown that high-intensity noise exposure increases free radical species; therefore, use of antioxidants to detoxify the free radicals can prevent cellular damage in the cochlea. We studied the potential hearing protective effect of different doses of ascorb...متن کامل
چکیده اثر عصاره آبی سیر بر درد ناشی از آزمون فرمالین در موش صحرایی نر به کوشش نرگس اسکندری روزبهانی زمینه و هدف: گیاه سیر از خانواده لیلیاسه و گونهallium sativum بومی آسیای میانه بوده و از دوران ،باستان تاکنون به خواص درمانی متفاوت آن مثل: کاهندگی قندخون، کلسترول خون، فشار خون، اثرات مفیدآن بر دستگاه قلبی عروقی و بیماریهای انعقادی خون، اثرات آنتی اکسیداتیو، درمان بیماریهای تنفسی وگوارشی، ا...15 صفحه اول
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دوره 7 شماره 2
صفحات 83- 86
تاریخ انتشار 1993-08
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