title: [A new type of nasal mask for administration of nitrous oxide in dentistry].
mesh_terms: D000766:Anesthesia, Dental / Q000295:instrumentation; D006801:Humans; D008397:Masks; D009609:Nitrous Oxide / Q000008:administration & dosage*
chemical_list: D009609:Nitrous Oxide
vernacular_title: Un nuovo tipo di maschera nasale per la somministrazione del protossido di azoto in odontostomatologia.