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Volume 25 , Issue 3
May/June 2010

Pages 607–612

Five-Year Follow-up of Wide-Diameter Implants Placed in Fresh Molar Extraction Sockets in the Mandible: Immediate Versus Delayed Loading

Loris Prosper, MD, DDS/Roberto Crespi, MD, MS/Edoardo Valenti, DDS/Paolo Capparé, MD/Enrico Gherlone, MD, DDS, PhD

PMID: 20556262

Purpose: The aim of this study was to compare the long-term success rates of wide-diameter implants in the mandibular molar region placed immediately after extraction and loaded either immediately or after a 3-month healing period. Materials and Methods: In 71 patients, 120 implants were positioned immediately after tooth extraction; 60 implants (immediate loading group) were loaded immediately and 60 were loaded after 3 months (delayed loading group). Radiographic examinations were made at baseline and at 1, 2, 3, 4, and 5 years after implant placement. Results: After 5 years, a survival rate of 96.67% was reported for all implants (failure rate, 3.33%). Four implants were lost, two from the immediate loading group and two from the delayed loading group. There were no patient dropouts in either group. Conclusions: Wide-diameter implants placed in fresh extraction sockets and loaded immediately or after a delay showed no significant clinical or radiographic differences after 5 years. Int J Oral Maxillofac Implants 2010;25:607–612

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