title: A novel approach to the distortion assessment of denture impression trays.
abstract: A novel method to treat and interpret distortion of denture impression trays has been proposed. When compared with the conventional method this approach, based on the general least squares principle, offers a significant advantage since the displacement for each individual point can be traced providing more profound insight into the character of the overall deformation itself. The method was applied to study dental impression trays manufactured of self-curing acrylic. The results indicate the existence of a large degree of individuality and non-uniform behaviour of a specific tray material. The method developed here can be applied to specimens of any arbitrary size and shape and it is not limited by the number of the reference points.
authors.affiliation: Department of Oral Function and Prosthetic Dentistry, Dental School, University of Nijmegen, The Netherlands.
authors.forename: M L
authors.initials: ML
authors.lastname: Hitge
authors.forename: P J
authors.initials: PJ
authors.lastname: Torfs
authors.forename: D D
authors.initials: DD
authors.lastname: Bicanic
mesh_terms: D000180:Acrylic Resins / Q000737:chemistry*; D003761:Dental Impression Technique / Q000295:instrumentation*; D004548:Elasticity; D008962:Models, Theoretical; D013314:Stress, Mechanical; D013499:Surface Properties
chemical_list: D000180:Acrylic Resins