Nitrous oxide (laughing gas) is a form of conscious sedation. It is administered by having the patient inhale the gas, which is carefully monitored by your dentist. You are completely aware of your surroundings, but the gas helps relax you, and any feelings of fear and anxiety fade away. This type of sedation is very safe and effective for both children and adults. Once the procedure is over, the nitrous oxide will wear off fairly quickly. Patients are usually able to drive themselves home. If you would like nitrous oxide gas used at your next appointment, ask your dentist to make sure you are an eligible candidate. Nitrous oxide is not recommended for people who are suffering from respiratory infections, COPD, chronic bronchitis, cystic fibrosis, or who are pregnant.