Use of pulse oximetry during nitrous oxide- oxygen inhalation sedation: mandatory or recommended?

There is skepticism amongst many dentists about the interference of nitrous oxide with the physiological parameters. This commentary attempts to make clear recommendations on the use of pulse oximeter during nitrous oxide inhalation sedation.

Nitrous oxide is used commonly in dentistry as a tool to reduce fear/ anxiety and build a positive dental attitude. Dentists use pulse oximeter to monitor oxygen saturation during the period of administration of nitrous oxide. There is no consensus amongst various guidelines across the world on the necessity of using pulse oximeter during the period of administration of nitrous oxide CONCLUSION: Pulse oximetry may not be considered mandatory when nitrous oxide gas is being administered for minimal sedation to a healthy patient having no pre- existing diseases/illness.