You can be helped to feel relaxed by ‘relative analgesia’ sometimes known as inhalation sedation. This means breathing in a mixture of nitrous oxide and oxygen (‘laughing gas’) which quickly leads to a pleasant, relaxed feeling. The dentist puts you at ease at the same time, by talking softly and suggesting what you feel. You remain conscious all the time, although you may be a little drowsy, and any treatment given causes you no discomfort. You breathe in the mixture through a nosepiece, which is very comfortable. You can’t overdose on the gas, as the mixture quickly leaves the body if you breathe in one or two breaths of ordinary air. There are no after-effects either, and you can drive a car after about 15 minutes. Many dentists use this safe and effective technique.