title: The challenge to conventional impressions.
authors.affiliation: CR Foundation, Provo, Utah 84604, USA.
authors.forename: Gordon J
authors.initials: GJ
authors.lastname: Christensen
mesh_terms: D003761:Dental Impression Technique / Q000295:instrumentation; D006801:Humans; D007091:Image Processing, Computer-Assisted; D010363:Pattern Recognition, Automated