title: Oxygen/nitrous oxide sedation (relative analgesia) in dentistry.
mesh_terms: D000698:Analgesia / Q000379:methods; D000766:Anesthesia, Dental / Q000379:methods*; D000769:Anesthesia, Inhalation; D001007:Anxiety / Q000188:drug therapy; D006801:Humans; D009609:Nitrous Oxide
chemical_list: D009609:Nitrous Oxide