Clinical and Radiographic Comparison between Platform-Shifted and Nonplatform-Shifted Implant : A One-Year Prospective Study

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Clinical and Radiographic Comparison between Platform-Shifted and Nonplatform-Shifted Implant : A One-Year Prospective Study

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Publication Article, peer reviewed scientific
Title Clinical and Radiographic Comparison between Platform-Shifted and Nonplatform-Shifted Implant : A One-Year Prospective Study
Author Glibert, Maarten ; Vervaeke, Stijn ; De Bruyn, Hugo ; Östman, Pär-Olov
Date 2016
English abstract
Background Developments in implant hardware and biologic understanding improved treatment predictability in terms of implant survival. Current research focuses on accelerated loading protocols and crestal bone preservation. Purpose This prospective, monocenter study analyzed the clinical and radiographic outcome of a novel parallel-walled implant, with and without platform shift Materials and Methods Forty-eight consecutively treated patients (30 women, 18 men) with crowns/bridges supported by 115 implants were included. Eighty-three percent of implants were nonocclusal, immediately loaded, and 17% were subjected to one-stage surgery and delayed loading after 10 weeks; 39.1% were of diameter 5.0mm, enabling platform shifting with a 4.0mm-wide prosthetic component; 60.9% were of diameter 4.0mm with a 4.0mm component. Radiographic crestal bone levels were assessed at baseline and 1 year. A multivariate statistical analysis was performed to determine factors affecting crestal bone loss after 1 year Results All implants survived and mean marginal bone loss was 0.73mm (SD: 0.13; range: -0.60 to 5.0mm). There was a statistically significant difference between platform-shifted (0.63mm; SD: 0.18) and nonplatform-shifted (1.02mm; SD: 0.14) implants. Implants in abundant bone volume lost significant less crestal bone (0.45mm; SD: 0.14) compared with implants in small volume (1.20mm; SD: 0.21). Implant diameter, loading time, anatomical position, smoking, and bone quality did not affect crestal bone loss Conclusion After 1 year of loading, both implant-prosthetic features yield a high survival and limited crestal bone loss. Crestal bone loss is minimized using platform-shifted implants placed in sufficiently voluminous bone. To limit the crestal bone loss, an adopted implant diameter with platform shifting should be considered.
DOI https://doi.org/10.1111/cid.12269 (link to publisher's fulltext.)
Publisher Wiley
Host/Issue Clinical Implant Dentistry and Related Research;1
Volume 18
ISSN 1523-0899
Pages 129-137
Language eng (iso)
Subject bone volume
dental implants
immediate loading
implant design;
osseotite 2
platform shifting
Medicine
Research Subject Categories::ODONTOLOGY
Handle http://hdl.handle.net/2043/22826 Permalink to this page
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