Nitrous oxide is the safe and effective technique used to calm a child's fear of the dental visit. Nitrous oxide is a blend of two gases- oxygen and nitrous oxide. When inhaled, it is absorbed by the body and has a calming effect. Nitrous oxide is perhaps the safest sedative in dentistry since the child remains fully conscious during treatment. Discussed within the brochure are ways to prepare the child for treatment and the effectiveness of the treatment on children. Sold in packs of 100.