Nitrous oxide, or laughing gas, is the most frequently used method for easing mild to moderate anxiety.  Administered through a small mask that fits over your child's nose, it is an effective way to calm anxiety, raise your child's pain threshold, and even make time seem like it's passing quicker than usual.  As the gas begins to work, your child may become more calm and relaxed although he/she will still be awake and able to talk with the dentist.

At the end of the appointment, your child will resume breathing regular oxygen, and all the effects of nitrous oxide will disappear, so he/she can resume normal activities immediately.