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. 2022 Aug 1;19(15):9417.
doi: 10.3390/ijerph19159417.

Assessment of Real-Time Active Noise Control Devices in Dental Treatment Conditions

Ik-Hwan Kim  1 , Hyeonmin Cho  1 , Je Seon Song  1   2 , Wonse Park  3 , Yooseok Shin  2   4 , Ko Eun Lee  5
Affiliations

Assessment of Real-Time Active Noise Control Devices in Dental Treatment Conditions

Ik-Hwan Kim et al. Int J Environ Res Public Health. .

Abstract

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.

Keywords: dental noise; noise; noise control; noise hazard.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
Equipment used for recording: (A) Binaural microphone Free space (3DIO, Vancouver, Canada); (B) Record controller DR44WL (Tascam, Santa Fe springs, CA, USA).
Figure 2
Figure 2
Sound pressure level graphs of dental noise from high−speed, low−speed, and suction without tooth preparation.
Figure 3
Figure 3
Sound pressure level graphs of dental noise from high−speed, low−speed, suction, and scaler during tooth preparation.
Figure 4
Figure 4
Comparison of sound pressure level not during tooth preparation. Dash−dot graph represents control condition (dental noise) and solid graph represents experimental condition (active noise control devices).
Figure 5
Figure 5
Comparison of sound pressure level during tooth preparation. Dash−dot graph represents control condition (dental noise) and solid graph represents experimental condition (active noise control devices).
See this image and copyright information in PMC

References

    1. Rapp G.W. Some physiologic responses to high-speed handpiece noises. Dent. Dig. 1971;77:136–140. - PubMed
    1. Jadid K., Klein U., Meinke D. Assessment of noise exposures in a pediatric dentistry residency clinic. Pediatr. Dent. 2011;33:343–348. - PubMed
    1. Kilpatrick H.C. Decibel ratings of dental office sounds. J. Prosthet. Dent. 1981;45:175–178. doi: 10.1016/0022-3913(81)90336-X. - DOI - PubMed
    1. Mo S., Kang J., Kim I.-H., Choi H.-J., Song J.S., Shin Y. Effect of Noise Cancelling Devices on Dental Handpieces Using Ear Model. J. Korean Acad. Pediatric Dent. 2020;47:62–69. doi: 10.5933/JKAPD.2020.47.1.62. - DOI
    1. Lehto T.U., Laurikainen E.T., Aitasalo K.J., Pietilä T.J., Helenius H.Y., Johansson R. Hearing of dentists in the long run: A 15-year follow-up study. Community Dent. Oral Epidemiol. 1989;17:207–211. doi: 10.1111/j.1600-0528.1989.tb00613.x. - DOI - PubMed

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