Nitrous oxide is a mild sedative used widely in paediatric dentistry to help children feel relaxed and at ease during dental procedures without putting them fully to sleep.

Dental general anaesthesia refers to a medical technique in which a child is put into a controlled state of unconsciousness to allow dental treatment to be carried out safely and comfortably. This option is typically considered when young patients are extremely anxious, unable to cooperate, have extensive dental needs, or have special healthcare requirements.