The laughing gas treatment used at the dentist reduces the patient's anxiety and fear, It is a sedation therapy that helps you receive treatment in a comfortable state. The laughing gas used for medical purposes is a gas called nitrous oxide (N₂O), It is inhaled with oxygen at a safely managed concentration. Nitrous oxide treatment is a method of mixing nitrogen oxide and oxygen and inhaling them with a mask, It helps patients receive treatment in a comfortable and relaxed state. You are conscious even during treatment, and you can breathe or talk on your own.