Nitrous oxide, or laughing gas, is the most frequently used method for easing mild to moderate anxiety in children. Nitrous oxide is a combination of two different gases–oxygen and nitrous oxide. We administer the gas through a small mask placed over your child’s nose. The gas will make your child relax without the full effect of anesthesia. This helps many children relax during their procedure.
At the end of your child’s appointment, he or she will resume breathing regular oxygen, and all the effects of nitrous oxide will disappear. As your child gets older and becomes more comfortable during dental visits, nitrous oxide may not be necessary.