Noise exposure assessment in a dental school.
Noise exposure assessment in a dental school.
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DOI：
10.5491/shaw.2011.2.4.348
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发表时间：
2011-12
影响因子：
3.5
通讯作者：
Phakthongsuk P
中科院分区：
文献类型：
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作者：
Choosong T;Kaimook W;Tantisarasart R;Sooksamear P;Chayaphum S;Kongkamol C;Srisintorn W;Phakthongsuk P
这项横断面研究是在宋卡王子大学牙科学院进行的，以确定牙科医生，牙科助理和实验室技术人员的噪声暴露。采用噪声频谱分析来说明牙科器械的频谱。2010年5月至12月期间，对牙科诊所和一个牙科实验室进行了噪音评估，以测量噪音水平。在牙科诊所和牙科实验室的牙科实践期间，采集牙科器械的噪声频谱数据。根据职业安全与健康管理局的标准设置噪声剂量计，然后将其附在受试者的衣领上，以记录工作期间个人的噪声剂量暴露。牙科器械的噪声频谱的峰值在1，000、4，000和8，000 Hz处，这取决于器械的类型。工作区域和工作岗位的差异对噪声暴露水平有影响（P < 0.01）。个人听力区的噪音测量发现，实验室技术人员暴露在最高的脉冲噪音水平（137.1 dBC）下。在儿童牙科诊所工作的牙科医生和牙科助理的百分比噪声剂量最高（4.60 ± 3.59%）。在工作区，8小时时间加权平均噪音水平介于49.7-58.1分贝之间，而最嘈杂的工作区是牙科实验室。牙科人员所接触的噪声强度低于职业接触限值。因此，这些牙科人员可能不会经历噪声引起的听力损失。
This cross-sectional study was performed in the Dental School of Prince of Songkla University to ascertain noise exposure of dentists, dental assistants, and laboratory technicians. A noise spectral analysis was taken to illustrate the spectra of dental devices. A noise evaluation was performed to measure the noise level at dental clinics and one dental laboratory from May to December 2010. Noise spectral data of dental devices were taken during dental practices at the dental services clinic and at the dental laboratory. A noise dosimeter was set following the Occupational Safety and Health Administration criteria and then attached to the subjects' collar to record personal noise dose exposure during working periods. The peaks of the noise spectrum of dental instruments were at 1,000, 4,000, and 8,000 Hz which depended on the type of instrument. The differences in working areas and job positions had an influence on the level of noise exposure (p < 0.01). Noise measurement in the personal hearing zone found that the laboratory technicians were exposed to the highest impulsive noise levels (137.1 dBC). The dentists and dental assistants who worked at a pedodontic clinic had the highest percent noise dose (4.60 ± 3.59%). In the working areas, the 8-hour time-weighted average of noise levels ranged between 49.7-58.1 dBA while the noisiest working area was the dental laboratory. Dental personnel are exposed to noise intensities lower than occupational exposure limits. Therefore, these dental personnel may not experience a noise-induced hearing loss.