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   Official Journal of The Academy of Osseointegration

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Volume 27 , Issue 5
September/October 2007

Pages 449-455

Narrow-Diameter Implants: A Restorative Option for Limited Interdental Space

Stuart J. Froum, DDS / Sang-Choon Cho, DDS / Young Sung Cho, DDS / Nicolas Elian, DDS / Dennis Tarnow, DDS

PMID: 17990441
DOI: 10.11607/prd.00.0763

The present study reports on the results of the use of a screw-retained narrow-diameter implant (NDI) system as an option for implant placement in areas of limited bone volume. This retrospective report followed 48 NDIs in 27 patients for 1 to 5 years postloading. No implant failures were reported, yielding a 100% survival rate. The screw-retained attribute of this system allows retrievability of the restorations, which may require replacement because of porcelain fracture, chipping, or a desire to change color. The three diameters available—1.8 mm, 2.2 mm, and 2.4 mm—allow flexibility for a variety of narrow edentulous spaces. These NDIs present a cost-effective alternative for restoring limited spaces with implant restorations, without the bone augmentation or orthodontic procedures required for conventional fixed restorations. The NDI system is approved by the U.S. Food and Drug Administration for long-term use. (Int J Periodontics Restorative Dent 2007; 27:449–455.)

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