title: A comparative analysis of the accuracy of implant transfer techniques.
abstract: Four different implant transfer techniques using two master cast systems (solid cast and Zeiser system) were evaluated and compared with respect to the accuracy with which abutment positions were reproduced. A stainless steel experimental analogue with two anterior and two posterior fixtures and abutments was fabricated. Polyether impressions (14 each) were made by use of four techniques, (I) nonsplinted, (II) splinted with dental floss and acrylic resin, (III) splinted with orthodontic wire and acrylic resin, and (IV) splinted with acrylic resin alone. The fourteen impressions of each technique were divided into two equal groups: group 1, solid cast system, and group 2, Zeiser system. The abutments of each master cast were measured vertically and horizontally with a profile projector. Statistical analysis indicated no significant difference between the splinted and nonsplinted techniques. The Zeiser system provided more accurate interabutment relationships for the posterior region than the solid cast system.
authors.affiliation: Department of Prosthodontics, Boston University, Goldman School of Graduate Dentistry, Mass.
authors.forename: C C
authors.initials: CC
authors.lastname: Hsu
authors.forename: P L
authors.initials: PL
authors.lastname: Millstein
authors.forename: R S
authors.initials: RS
authors.lastname: Stein
mesh_terms: D000180:Acrylic Resins; D000704:Analysis of Variance; D000044:Dental Abutments; D003758:Dental Implantation, Endosseous; D003761:Dental Impression Technique; D006801:Humans; D003765:Models, Dental; D015203:Reproducibility of Results
chemical_list: D000180:Acrylic Resins