As reported in the newly released, Pandemic Influenza Preparedness and Response Guidance for Healthcare Workers and Healthcare Employers, OSHA strongly urges healthcare institutions (including dental offices) to stockpile N-95 respirators and other protective equipment, warning that the items will be scarce once a pandemic strikes. "Employers and employees should not count on obtaining any additional protective equipment not already purchased and stockpiled," the report said. "Therefore, it is important for healthcare facilities to consider respiratory protection for essential personnel to assure that employees are ready, willing, and able to care for the general population."
http://www.osha.gov/Publications/OSHA_pandemic_health.pdf