According to statistics, about 75% of adults and 98% of children, for dental treatment with varying degrees of tension, fear, this tension and fear of psychology, medically known as “dental fear sign”, “dental fear sign” patients, can not well cooperate with the medical staff diagnosis and treatment, but also adds a lot of pressure to the medical staff to reduce the efficiency of treatment, may also affect the quality of treatment. Patients with “dental fear syndrome” cannot cooperate well with the medical staff, and at the same time, it also adds a lot of pressure to the medical staff, reduces the efficiency of diagnosis and treatment, and may also affect the quality of diagnosis and treatment. The Laughing Gas Sedation System can completely solve these problems. The use of laughing gas sedation system, let the patient lying in the dental treatment chair, inhaling laughing gas oxygen mixture, watching movies, listening to music, can soon eliminate the tension and fear. Patients in the awake state, completely relaxed, very good with the medical staff of the diagnosis and treatment work, in a very comfortable state to complete all the operations, even for the most difficult blocked wisdom teeth extraction, the patient will not feel nervous, pain, uncomfortable, in the unknowingly complete the treatment process. Laughing gas sedation has been widely used abroad and is gradually being accepted by domestic healthcare professionals and patients. It is one of the safest forms of conscious sedation, and can be used to restore normalcy in 2~3 minutes after the treatment is over, so you can drive home.