For most patients, a visit to their dentist is relatively quick and easy. However, certain patients and children suffer from dental anxiety, and nitrous oxide, or laughing gas, helps make the appointment easier and more enjoyable. It’s important to know when and how this anesthesia is used, as well as its side effects. Learn more here:

http://www.colgate.com/en/us/oc/oral-health/procedures/anesthesia/article/what-does-laughing-gas-do-0117

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