Abstracts (51)
Ten-Year Results of a Prospective Study Using Porous-Surfaced Dental Implants and a Mandibular Overdenture.
D.A.Deporter, Philip Watson, Michael Pharoah, Reynaldo Todescan, George Tomlinson
Background:
Numerous investigators have used osseointegrated dental implants as retention for Mandibular overdentures, but few have reported 10-year outcomes or incorporated carefully standardized radiographs to document crestal bone loss.
Purpose:
The purpose of this study was to use a prospective clinical trial design to assess the performance of short sintered porous-surfaced dental implants with a mandibular complete overdenture when all patients in the trial had undergone 10 years of continuous function.
Materials and Methods:
Fifty-two fully edentulous patients, most with advanced alveolar ridge resorption, each received three free-standing EndoporeŽ implants (7-10 mm in length,mean length,8.7 mm; Innova Corporation, Toronto , ON , Canada ) in the mandibular symphysis region. After 10 weeks of submerged healing, these implants were used to support an overdenture. Carefully standardized radiographs, using a customized stainless steel filmholder attached to each implant and the x-ray tube, were collected at baseline, 3 months, 6 months, yearly to 5 years and then again at 7 and 10 years.
Results:
Life table analysis revealed a 10-year implant survival of 92.7% and a mean annual bone loss after year 1 of 0.03 mm.
Conclusions:
Short free-standing dental implants with a sintered porous surface used for implant fixation are a predictable and effective means of retaining a mandibular overdenture in patients with advanced mandibular ridge resorption.
Clinical Implant Dentistry and Related Research 2002:4:4:1-7
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