title: In vitro considerations in the production of dimensionally accurate earmoulds. I. The ear impression.
abstract: As the first part of a study on the fabrication of earmoulds, the dimensional accuracy and stability, as a function of time, of a wide range of polymer-based impression materials has been studied. The results demonstrate that addition cured silicones are the most promising materials in terms of their accuracy and dimensional stability.
authors.affiliation: Department of Audiology, University of Manchester, Lancashire, England.
authors.forename: M
authors.initials: M
authors.lastname: Nolan
authors.forename: E C
authors.initials: EC
authors.lastname: Combe
mesh_terms: D000180:Acrylic Resins; D003760:Dental Impression Materials; D006310:Hearing Aids; D066298:In Vitro Techniques; D011108:Polymers; D012826:Silicone Elastomers; D012828:Silicones
chemical_list: D000180:Acrylic Resins; D003760:Dental Impression Materials; D011108:Polymers; D012826:Silicone Elastomers; D012828:Silicones