| Nitrous Oxide, N2O, also called laughing gas, is a colorless gas with a pleasant, sweetish odor and taste. It works by infusing the membranes of the body producing an anesthetic effect. It is one of the safest anesthetics available. Most patients experience an initial feeling of lightheadedness, which gradually leads to an overall feeling of well-being.
The gas is administered with a comfortable mask placed over the nose and adjusted so the patient breathes through it. After the gas is adjusted to the appropriate dose, with the patient relaxed and sedated, the dentist can comfortably give the anesthetic injection (if needed) and then proceed with dental treatment.
After treatment is completed, the patient is given pure oxygen to breathe for about 5 minutes, and all the effects of sedation are usually reversed. The patient can almost always leave the office by themselves, without an escort.
Nitrous oxide has few side effects, a small percentage of patients experience nausea, and about 10% of patients do not benefit from it. Patients who are claustrophobic or have blocked nasal passages cannot use nitrous oxide effectively. |