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Volume 19 , Issue 5
September/October 2004

Pages 703 - 709

Clinical Evaluation of Small-Diameter Implants in Single-Tooth and Multiple-Implant Restorations: A 7-year Retrospective Study

Paolo Vigolo, Dr Odont, MScD/Andrea Givani, MD, DDS/Zeina Majzoub, DCD, DMD, MScD/Giampiero Cordioli, MD, DDS

PMID: 15508986

Purpose: Placement of small-diameter implants often provides a solution to space-related problems in implant restoration. This 7-year retrospective study presents results from 192 small-diameter implants placed in 165 patients from 1992 to 1996. Materials and Methods: The dental records of each patient were reviewed. The implants, which were either 2.9 mm or 3.25 mm in diameter, were placed by 2 different surgeons. All prosthetic appliances were fabricated by the same prosthodontist. Ninety-four implants supported single-tooth cemented restorations; the remaining 98 implants supported cemented or screw-retained partial prostheses. Results: The total implant survival rate was 95.3%. Four implants were lost at second-stage surgery, and 5 more were lost after loading. Discussion: Small-diameter implants demonstrated a survival rate similar to those reported in previous studies of standard-size implants. Conclusions: The results suggest that small-diameter implants can be successfully included in implant treatment. They may be preferable in cases where space is limited.

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