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The International Journal of Oral & Maxillofacial Implants
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Int J Oral Maxillofac Implants 13 (1998), No. 1     15. Feb. 1998
Int J Oral Maxillofac Implants 13 (1998), No. 1  (15.02.1998)

Page 77-81


Effect of Prefabricated Bar Design With Implant-Stabilized Prostheses on Ridge Resorption: A Clinical Report
Wright, Paul S. / Watson, Roger M.
This investigation was concerned with the resorption of the posterior mandibular residual ridge in patients wearing mandibular overdentures supported by either parallel-sided bars (rigid joint) or oval straight bars (resilient joint) on two activated implants. Rotational tomographs were taken shortly after implant placement and up to 8 years later. Using proportional measurement, the area of residual ridge was measured in bilateral posterior areas. Patients rehabilitated with implant-stabilized mandibular overdentures demonstrated posterior mandibular residual ridge resorption at low rates, which were not significantly influenced by the design of the prefabricated bar.

Keywords: bone resorption, dental implants, mandible, overdentures, residual ridge