A prospective, randomized, controlled comparison of platform-switched and matched-abutment implants in short-span partial denture situations.
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.
Trammell
Kyle
K
University of Alabama at Birmingham School of Dentistry, Birmingham, Alabama 35294-0007, USA.
Geurs
Nico C
NC
O'Neal
S Jean
SJ
Liu
Perng-Ru
PR
Haigh
Sandra J
SJ
McNeal
Sandre
S
Kenealy
James N
JN
Reddy
Michael S
MS
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
D015921:Dental Implants