Nitrous Oxide (laughing gas)
Nitrous Oxide is a sweet smelling, non irritating, colorless gas which you can breathe. It is used alone or in combination with a dental local anesthetic.
Nitrous Oxide has been used for inhalation sedation in dentistry for many years. It is an extremely safe gas, as patients are able to breathe on their own and remain in control of all bodily functions. The depth of sedation can be altered at any time to increase or decrease sedation. Inhalation sedation is very effective in minimizing gagging.