Dec. 11, 1844: Laughing Gas Dulls the Pain of a Savage Dentist
posted December 11, 2007 - 1:06amIt was on this date in the year 1844 that nitrous oxide, commonly known as laughing gas, was used as an anesthetic agent in dentistry.
Website: http://www.wired.com/science/discoveries/news/2007...
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