Firstly there is nitrous oxide, a non-toxic and non-irritating substance which is simply eliminated by breathing, and therefore not metabolized by the body. Nitrous oxide is administered by inhalation, together with oxygen, in varying percentages. It is also suitable for children. Additionally there is intravenous sedation, carried out by an anesthesiologist surgeon who will administer a solution consisting of analgesics, gastric protectors and, in cases of particular anxiety or fear, a light anxiolytic.