title: A prospective, randomized, controlled comparison of platform-switched and matched-abutment implants in short-span partial denture situations.
abstract: Recent observations suggest that less bone loss may result from placing a more medialized abutment on an implant (platform switching). The objective of this study was to measure the radiographic crestal bone loss and biologic width around conventional and platform-switched implants. Implants were randomly assigned into conventional or switched categories within the same prosthesis. Twenty-five implants were placed and observed in the mandibles of 10 patients for 2 years. A regression analysis demonstrated a significant difference between groups (P < or = .0001). These findings suggest that less crestal bone loss occurs around a platform-switched dental implant versus a conventional implant.
authors.affiliation: University of Alabama at Birmingham School of Dentistry, Birmingham, Alabama 35294-0007, USA.
authors.forename: Kyle
authors.initials: K
authors.lastname: Trammell
authors.forename: Nico C
authors.initials: NC
authors.lastname: Geurs
authors.forename: S Jean
authors.initials: SJ
authors.lastname: O'Neal
authors.forename: Perng-Ru
authors.initials: PR
authors.lastname: Liu
authors.forename: Sandra J
authors.initials: SJ
authors.lastname: Haigh
authors.forename: Sandre
authors.initials: S
authors.lastname: McNeal
authors.forename: James N
authors.initials: JN
authors.lastname: Kenealy
authors.forename: Michael S
authors.initials: MS
authors.lastname: Reddy
mesh_terms: D016301:Alveolar Bone Loss / Q000000981:diagnostic imaging / Q000209:etiology / Q000517:prevention & control*; D000044:Dental Abutments; D003758:Dental Implantation, Endosseous / Q000009:adverse effects; D015921:Dental Implants / Q000009:adverse effects; D017267:Dental Prosthesis Design; D019094:Dental Prosthesis, Implant-Supported; D003830:Denture, Partial, Fixed; D006801:Humans; D016014:Linear Models; D008334:Mandible / Q000601:surgery; D011446:Prospective Studies; D011859:Radiography; D015203:Reproducibility of Results
chemical_list: D015921:Dental Implants