What are the advantages to N2O?
The calming and euphoric effect that N20 produces is the primary benefit. This allows your child to tolerate sometimes uncomfortable procedures better, such as an injection with local anesthesia, or having your mouth open for an extended period of time. By relaxing your child, it also decreases the restlessness that young children experience when asked to be still for an extended period of time. In addition it decreases the gag reflex and thus makes it easier to treat the back teeth.
