Yes! We nitrous (laughing gas) for your comfort. Nitrous Laughing Gas Also known as laughing gas, Nitrous is beneficial in calming a patient's anxiety before a procedure. It is a sweet-smelling, non-irritating, colorless gas that you can breathe. It is used primarily for its anesthetic and analgesic properties. It is a safe and effective gas that is inhaled by the patient. It is the most commonly used sedation technique in dentistry. Learn more about Nitrous Oxide sedation. There are many advantages to using Nitrous. The depth of sedation can be altered at any time to increase or decrease sedation. There is no after effect such as a "hangover." Inhalation sedation is safe with no side effects on your heart and lungs, etc. Inhalation sedation is very effective in minimizing gagging. It works rapidly as it reaches the brain within 20 seconds. In as little as 2-3 minutes, its relaxation and pain-killing properties develop.