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Noise levels in dental schools.
European Journal of Dental Education : Official Journal of the Association for Dental Education in Europe 2006 Februrary
OBJECTIVE: To measure and analyse noise levels in the learning-teaching activities at the Dental School of the University of Porto (Portugal).
MATERIALS AND METHODS: Sound levels were measured in five different practice areas and laboratories, selected as representative of a variety of learning-teaching activities. The noise levels were determined using a precision sound level meter that was positioned at ear level and at 1 m distance from the operator.
RESULTS: The noise levels registered vary between 60 and 99 dB(A) and are similar to the data of other international studies. The results recorded differences in sound levels when the equipment was merely turned on and during cutting operations. Differences between brand new and used equipment were also noted. It appears that hearing damage risk may be lesser amongst dentists who use brand new equipment.
CONCLUSION: The noise levels detected in this study are considered to be close to the limit of risk of hearing loss.
MATERIALS AND METHODS: Sound levels were measured in five different practice areas and laboratories, selected as representative of a variety of learning-teaching activities. The noise levels were determined using a precision sound level meter that was positioned at ear level and at 1 m distance from the operator.
RESULTS: The noise levels registered vary between 60 and 99 dB(A) and are similar to the data of other international studies. The results recorded differences in sound levels when the equipment was merely turned on and during cutting operations. Differences between brand new and used equipment were also noted. It appears that hearing damage risk may be lesser amongst dentists who use brand new equipment.
CONCLUSION: The noise levels detected in this study are considered to be close to the limit of risk of hearing loss.
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