A prospective, randomized, controlled comparison of platform-switched and matched-abutment implants in short-span partial denture situations

Academic Article


  • 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 ≤ .0001). These findings suggest that less crestal bone loss occurs around a platform-switched dental implant versus a conventional implant. © 2009 by Quintessence Publishing Co Inc.
  • Author List

  • Trammell K; Geurs NC; Jean O’Neal S; Liu PR; Haigh SJ; McNeal S; Kenealy JN; Reddy MS
  • Start Page

  • 599
  • End Page

  • 605
  • Volume

  • 29
  • Issue

  • 6