title: From the postgraduate centres. Pinned retention for amalgam. 1973.
authors.affiliation: Department of Conservative Dental Surgery, Guy's Hospital, London SE1.
authors.forename: R B
authors.initials: RB
authors.lastname: Johns
mesh_terms: D003723:Dental Amalgam / Q000266:history; D003772:Dental Pins / Q000266:history*; D017268:Dental Prosthesis Retention / Q000266:history*; D003793:Dental Restoration, Permanent / Q000266:history; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans
chemical_list: D003723:Dental Amalgam