1. What are nitrous oxide and diazepam used for in dentistry? Nitrous oxide, commonly known as laughing gas, is used to relax patients during dental procedures, making them feel more comfortable and less anxious. Diazepam, a sedative medication, is sometimes prescribed for patients who experience severe dental anxiety or require more profound sedation. 2. Are these substances safe... https://www.shifadental.net/local-dentists-using-nitrous-oxide-and-diazepams-function/