title: The Coffin plate and spring.
authors.affiliation: Royal Preston Hospital, Sharoe Green Lane, Fulwood, Preston, PR2 9HT. Karen.Pool@lthtr.nhs.uk
authors.forename: Michael J
authors.initials: MJ
authors.lastname: Trenouth
mesh_terms: D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D007603:Jurisprudence; D009967:Orthodontic Appliances / Q000266:history*; D010155:Palatal Expansion Technique / Q000266:history* / Q000295:instrumentation; D012408:Rubber; D006113:United Kingdom
chemical_list: D012408:Rubber