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Noise levels in dental schools
J C Sampaio Fernandes1, A P O Carvalho, M Gallas
1Department of Fixed Prosthesis, Faculty of Dentistry, University of Porto, Portugal.
Summary
Noise levels in dental school activities range from 60 to 99 dB(A), nearing the risk threshold for hearing loss. Newer equipment may reduce this risk for dentists.
Area of Science:
- Dental Education
- Acoustics
- Occupational Health
Background:
- Dental learning environments involve various equipment generating noise.
- Understanding noise exposure is crucial for protecting dental professionals' hearing.
Purpose of the Study:
- To measure and analyze noise levels during learning-teaching activities at the University of Porto's Dental School.
- To assess potential risks associated with noise exposure in dental education.
Main Methods:
- Sound levels were measured in five representative practice areas and laboratories.
- A precision sound level meter was used at ear level, 1 meter from the operator.
Main Results:
- Noise levels ranged from 60 to 99 dB(A), consistent with international studies.
- Significant differences in sound levels were observed between idle equipment and active cutting operations.
- Newer equipment generated less noise compared to used equipment, potentially reducing hearing damage risk.
Conclusions:
- Detected noise levels approach the limit for hearing loss risk.
- The type and usage of dental equipment influence noise exposure levels.