Acute responses to occupational exposure to methyl methacrylate among a group of dentists

Peak expiratory flow rates and acute work-related symptoms were compared in a group of 32 dentists and matched non-exposed control group [n=35] to determine the occupational response to methyl methacrylate in dental practice. A significantly higher prevalence of work-related symptoms and an acute decline in PEFR were observed among the dentist group in comparison with the control non-exposed group. 12.5% of dentists showed a decline in PEFR more than 20% after 2 hours of exposure. Replacement by a safer material, using local exhaust ventilation and protective devices were recommended