title: [Nitrous oxide in dental anesthesia: facts about its introduction in Spain].
abstract: After a free period of twenty years the interest for using nitrous oxide in suppressing pain related to dental surgery has increased since the end of the sixties of the last century. In this work we present the result of our investigations on the person who must be considered the introducer of this technique in Spain: José Meifrén Alfares, odontologist at Barcelona.
authors.affiliation: Hospital Materno-Infantil, Ciudad Sanitaria de la Vall d'Hebron, Barcelona.
authors.forename: C
authors.initials: C
authors.lastname: Hervás Puyal
authors.forename: M
authors.initials: M
authors.lastname: Cahisa Mur
mesh_terms: D000766:Anesthesia, Dental / Q000266:history* / Q000295:instrumentation; D000769:Anesthesia, Inhalation / Q000266:history* / Q000295:instrumentation; D049672:History, 19th Century; D049673:History, 20th Century; D009609:Nitrous Oxide / Q000266:history*; D013030:Spain
chemical_list: D009609:Nitrous Oxide
vernacular_title: El óxido nitroso en la anestesia odontológica: datos sobre su introducción en España.