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What is Nitrous Oxide?


Updated: April 30, 2008

Question: What is Nitrous Oxide?

Answer: Nitrous Oxide is a gas that's combined with Oxygen to produce a a calming effect and a sense of well being when inhaled. Many dentists use Nitrous Oxide to help a patient relax during dental treatments.

When the dental procedure is over, the dentist will have the patient breathe only Oxygen for a few minutes to eliminate the effects of the Nitrous Oxide.

Unlike other sedations, the patient should have a clear head within minutes of coming off of the Nitrous Oxide allowing them to function normally with no lingering effects. Nitrous Oxide is also known as laughing gas.


American Academy of Pediatric Dentistry Nitrous Oxide 30 April 2008.

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