Nitrous oxide or laughing gas is an odourless and tasteless gas that calms the body after being consumed. A relaxed feeling quickly spreads through the body. In some cases, patients may experience lightheadedness and giggles. The effects wear off quickly and patients are usually back to their regular selves at the end of an appointment. Nitrous oxide is administered through a gas mask. All you have to do is breathe in as you normally would. Nitrous oxide sedation is also covered by some insurance companies.
This type of sedation requires a prescription in advance. The medication needs to be taken before your appointment time. Just like inhalation sedation, it calms and relaxes your body but you will remain fully conscious. However, once you take this medication, you are legally impaired for 24 hours so you will need to make plans before you proceed with the treatment.