Volume 57, Issue 4 pp. 485-496

The importance of surface texture for bone integration of screw shaped implants: An in vivo study of implants patterned by photolithography

C. Hallgren

Corresponding Author

C. Hallgren

Department of Biomaterials/Handicap Research, Institute for Surgical Sciences, Göteborg University, Box 412, 405 30 Göteborg, Sweden

Department of Biomaterials/Handicap Research, Institute for Surgical Sciences, Göteborg University, Box 412, 405 30 Göteborg, SwedenSearch for more papers by this author
H. Reimers

H. Reimers

Department of Applied Physics, Chalmers University of Technology, 412 96 Göteborg, Sweden

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J. Gold

J. Gold

Department of Applied Physics, Chalmers University of Technology, 412 96 Göteborg, Sweden

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A. Wennerberg

A. Wennerberg

Department of Biomaterials/Handicap Research, Institute for Surgical Sciences, Göteborg University, Box 412, 405 30 Göteborg, Sweden

Department of Prosthetic Dentistry/Dental Materials Science, Faculty of Odontology, Göteborg University, Box 450, 405 30 Göteborg, Sweden

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Abstract

The aim of the present study was to investigate the influence of different properties inherent in surface topography on the integration of an implant in bone. Using a photolithography technique, a specific surface pattern was produced on the screw flanks of threaded titanium oral implants. Surface topography was qualitatively assessed by scanning electron microscopy (SEM) and a confocal laser scanning profilometer. Quantitative analysis with the confocal laser profilometer derived parameters for surface roughness and surface roughness together with waviness. The chemical composition of the implant surfaces was analyzed by Auger electron spectroscopy. The patterned and control (turned) implants were inserted in New Zealand White rabbits with a healing period of 3 months. Bone fixation was evaluated with resonance frequency analysis (RFA), peak removal torque analysis (RTQ), and by histomorphometry. No statistically significant differences were seen in the fixation, with respect to bone-to-implant contact, between the patterned and control implants. © 2001 John Wiley & Sons, Inc. J Biomed Mater Res 57: 485–496, 2001

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