Department of Pediatric Dentistry, College of Dentistry, Yonsei University, Seoul 03722, Korea.
Oral Science Research Center, College of Dentistry, Yonsei University, Seoul 03722, Korea.
Int J Environ Res Public Health. 2022 Aug 1;19(15):9417. doi: 10.3390/ijerph19159417.
Dental clinics are exposed to various uncomfortable noises. The aim of this study was to quantify the effectiveness of active noise control devices in dental treatment conditions. Two types of commercial headsets (Airpods Pro, QC30) and two types of dental headsets (Alltalk, Quieton Dental) were used for the experiment. Three sounds (high-speed handpiece, low-speed handpiece, and suction system) were measured at three different distances from the dental teeth model, typodont. The distances of 10, 40, and 70 cm reflected the positions of the patient, assistant, and practitioner’s ears, respectively. Sound analysis was performed, and the significance of differences in the maximum noise level using each device was determined with the Kruskal−Wallis test. Dental noise was characterized by the peak in sound pressure level (SPL) at 4−5 kHz and >15 kHz frequencies. The commercial headsets efficiently blocked 1 kHz and 10 kHz of noise. The dental headsets efficiently reduced 4−6 and >15 kHz noise. Quieton had the highest maximum SPL in all situations and positions among the four devices. For a better dental clinic, however, active noise control devices more suitable for the characteristics of dental noise should be developed.
牙科诊所会暴露于各种令人不适的噪声中。本研究旨在量化主动降噪设备在牙科治疗环境中的有效性。实验采用了两种商用耳机（Airpods Pro、QC30）和两种牙科耳机（Alltalk、Quieton Dental）。三种声音（高速手机、低速手机和抽吸系统）在距牙科牙齿模型（牙模）typodont 的三个不同距离处进行了测量。10、40 和 70 cm 的距离分别反映了患者、助手和医生耳朵的位置。对声音进行了分析，并使用 Kruskal−Wallis 检验确定了每种设备在最大噪声水平上差异的显著性。牙科噪声的特征是在 4−5 kHz 和 >15 kHz 频率处的声压级（SPL）峰值。商用耳机有效地阻隔了 1 kHz 和 10 kHz 的噪声。牙科耳机有效地降低了 4−6 kHz 和 >15 kHz 的噪声。在所有情况下和所有四个设备中，Quieton 的最大 SPL 最高。然而，为了更好的牙科诊所，应该开发更适合牙科噪声特性的主动降噪设备。
