The Hazards of Nitrous Oxide Use During Dental Procedures
Forensic Analytical Consulting Services, Inc. (FACS) was retained to perform an occupational exposure assessment for waste anesthetic gas in both the Oral Surgery and Pediatric Dentistry departments. The assessments were conducted during normal work shifts at times when nitrous oxide was administered during both juvenile and adult dental procedures.
Key Results
Data collected during oral surgery procedures revealed exposures that exceeded occupational exposure limits.
Data collected during pediatric procedures revealed exposures below occupational exposure limits.
Staff exposure levels differed based on procedure type, induction masks, and patient behaviors.
About the Client
Studies were conducted in facilities owned by a nationwide healthcare group. The client regularly performs dental procedures where patients are administered nitrous oxide to reduce anxiety and discomfort while keeping patients awake and responsive.
The Problem
The purpose of the investigation was to characterize agent concentrations by conducting personal air sampling of key staff as well as direct reading for nitrous oxide during dental procedures that utilize the gas, provide information for consideration in assessing risk to employees, and provide recommendations for further assessment or controls as necessary.
The FACS Solution
FACS suggestions included improving room ventilation, using well-fitting nasal hoods with scavenging, training staff on safe practices, and using proper respiratory protection as needed. It is important to repeat air monitoring after improvements, share results with employees, and keep required records to protect both the staff and the employer.