What is Nitrous Oxide?

Nitrous oxide is a gas (also known as laughing gas) used as an anaesthetic in dentistry. When nitrous oxide is inhaled it produces a variety of physical effects such as disorientation, fixated vision, auditory hallucinations, visual hallucinations, increased pain threshold, and a lowered vocal pitch.Oxygen is administered after the nitrous oxide and these physical effects dissipate within a few minutes.