Effect of Noise Cancelling Devices on Dental Handpieces Using Ear Model

Seunghan, Mo; Kang, Jungu; Kim, Ik-Hwan; Choi, Hyung Jun; Song, Je Seon; Shin, Young Goo

doi:10.5933/jkapd.2020.47.1.62

Cited by 4 publications

(4 citation statements)

References 13 publications

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“…Because pediatric dentists provide treatments, including restoration, orthodontics, surgical operation, etc., there is a lot of dental equipment making high-frequency noises. For example, noise from high and low-speed handpiece drills makes 70–92 dB of noise [ 2 , 3 , 4 , 5 ] and ultrasonic scalers make 68–88 dB of noise [ 2 , 3 , 6 ]. Screaming and crying from younger patients reaches about a 110 dB level [ 2 , 7 ].…”

Section: Introductionmentioning

confidence: 99%

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

Kim

Cho

Song

et al. 2022

IJERPH

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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.

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Section: Introductionmentioning

confidence: 99%

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

Kim

Cho

Song

et al. 2022

IJERPH

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“…There are various applications such as wall paints, screens, ceiling tiles, anti-noise devices to reduce occupational noise. [30][31][32][33] In addition, studies on the production of tools that produce low noise were made. [34][35][36] Studies show that old tools produce high noise.…”

Section: Discussionmentioning

confidence: 99%

“…The distance of 30 cm was calculated as the distance between the dentist's ear and the instruments making noise. 31 Simulation of control and test group average noise levels and the test parameters are presented in Table 4. Noiseproducing devices (aerator, scaler, etc.)…”

Section: Discussionmentioning

confidence: 99%

Prevention of noise-induced hearing loss by rational appointment algorithm in periodontal, restorative and prosthetic treatments: A method study

Eroglu²

2022

IJPI

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Dentists are at risk of noise-induced hearing loss (NIHL). Dental treatment equipment has high-intensity noise levels. Occupational noise levels of multi-unit dental clinic are higher than private clinic and are at further increased risk of NIHL. This study aims to develop a noise-reducing appointment system in multi-unit dental clinics using treatment duration and steps noisemap. Restorative, periodontal, and prosthetic dental procedure noise levels were measured in a multi-unit dental clinic. A procedure noise map was created by measuring the amount of noise in the treatment time interval and the silent treatment period. The appointment algorithm was created according to this noise map. Control and 7 test simulation appointment algorithms were tested. The control group was simulated in six units simultaneously with conventional hour-based appointment algorithm. Test groups were simulated according to the appointment algorithm based on the treatment steps noisemap. Six-unit dental clinic was simulated under the dBmap system. While 2 of the 6 units in the test groups are in noise producing treatment steps, the other 4 seats are planned to operate without noise. According to treatment steps noisemap, test groups operated two-unit simultaneously at different timings. The distribution of noise producing units in the clinic was simulated in 7 groups (T1-T7). The mean noise measurements in all tested groups were significantly lower than in the control group. Periodontal treatment mean occupational noise level (68 dB) was higher than restorative (61 dB) and prosthetic treatment (59 dB). Control room mean occupational noise measurement was 68,54 dB, and test groups mean occupational noise measurements were between 57,19 –63,98 dB. The difference between control and tested groups was significantly different(p=0,0009). Occupational noise was significantly reduced with the noise reduction-based appointment method. Further studies are needed with different treatment procedures and validation studies in clinical settings.

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“…To determine the masking threshold (dB(A)) to be used in clinical trials, the noise level generated in high-speed mode (360,000~430,000 rpm) was measured. Noise was measured in a closed treatment room with a background noise of less than 40 dB and a minimum background noise, and was measured at an ideal treatment distance of 30.0 cm (Figure 2A) [16]. The noise level was measured for 30 s, and the average sound pressure level exposed for 30 s was used as the measured value.…”

Section: Development Of Notch-filtered Music Through Sound Masking Te...mentioning

confidence: 99%

A Study on the Psychological Noise Reduction Effect on Dental Handpiece Noise through the Bone Conduction Speaker Equipped Unit Chair and Notch-Filtered Music

Kang

Hong

et al. 2022

Applied Sciences

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Anxiety in dental patients has caused inconvenient experiences during their dental visits due to the noise generated by the dental handpiece. High-frequency sounds generated by the handpiece have been challenging to reduce using the active control method that targets low-frequency sounds, as well as the difficulty in applying the noise control method using sound-absorbing materials, because the size of the handpiece is small. As an alternative, a method that can reduce noise and provide stability by playing music to patients is being studied. However, in most studies, there are inconveniences such as the need to turn the music volume higher to cover dental handpiece noise or having to wear headphones to play music. In this study, in order to reduce this inconvenience and optimize the noise reduction effect of music, we propose a technology that converts music into sound masking and a unit chair equipped with a bone conduction speaker that plays music, and through clinical trials with 35 patients, it was confirmed that the proposed system made the patients emotionally stable. In addition, by analyzing the causes of these emotional changes, it suggests that the preferred genre of music by patients should also be considered.

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Effect of Noise Cancelling Devices on Dental Handpieces Using Ear Model

Cited by 4 publications

References 13 publications

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

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

Prevention of noise-induced hearing loss by rational appointment algorithm in periodontal, restorative and prosthetic treatments: A method study

A Study on the Psychological Noise Reduction Effect on Dental Handpiece Noise through the Bone Conduction Speaker Equipped Unit Chair and Notch-Filtered Music

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