Nitrous oxide is just a fancy term for “laughing gas” or “ice cream air”, as Dr. Jerry likes to call it. It has a quick onset and offset, meaning that it will be completely cleared from your child’s body soon after treatment is complete and before they get up from the dental chair. The goal of using nitrous oxide is to help reduce your child’s anxiety so that the dental treatment can be effectively completed. Nitrous oxide has been a very safe and effective treatment in pediatric dentistry for decades.