Nitrous oxide (laughing gas): can be an aid to in helping a young patient through his/her dental treatment. Nitrous oxide is applied as an inhalant through a mask placed over the nose. Nitrous oxide is a mixture of a nitrogen-based gas with oxygen (also administered through the mask) to make a mostly oxygen based gas that allows a child to remain conscious, while minimizing fear. Nitrous oxide can help a child to relax and enable better cooperation, without complete sedation (the patient is never unconscious). The American Academy of Pediatric Dentistry has recognized the application of nitrous oxide as safe and effective as an aid in allowing a pediatric dentist to complete treatment. Nitrous oxide is very easily eliminated from the body by the simple act of breathing. Nitrous oxide will help facilitate treatment while your child is conscious and has all his/her reflexes intact.