From high-speed drills to ultra-sonic scalers dental operators and assistants are exposed to repeated sound exposures,that may over time contribute to Noise-Induced Hearing Loss (NIHL) and Tinnitus ( the perception of ringing or hissing in ears without any external source) which is less recognised as an occupational hazard.
The risk of NIHL increases both with increased noise levels of above 85 Decibel and duration of exposure of continuous Eight hours. Dental equipments produce noise levels ranging from 65 dB to over 100 Db.
Recent studies indicate that 40% of dental professionals reported tinnitus symptoms. The symptoms are more pronounced in the ear closest to the equipment.
Signs and Symptoms to recognise:
Early symptoms are subtle such as difficulty hearing conversations in background noise,needing high volumes on media devices,temporary tinnitus.
Overtime may lead to permanent tinnitus,hearing loss.
Prevention and workplace strategies:
1)Regular audiometric screening Annually.
2)Use hearing protection devices like earplugs or noise-attenuating headphones during procedures .
3)Choose quieter version of instruments where possible.
4)Scheduling breaks or isolating noisy equipment can help
5)Education and Awareness on the risks and protective actions enhances compliance and outcome.
Conclusion:
Dental professionals spend their career for well-being of others,but their own hearing health receives less attention. Ear protection could be considered as additional Personal Protective Equipment (PPE),thereby dental professionals are able to practise comfortably and confidently.
Do you view dental noise as a routine part of practise or as an occupational hazard ?
What steps can be taken to ensure our hearing remains healthy throughout our careers?
MBH/PS
