Quantitative in vitro comparison of the thrombogenicity of commercial dental implants

Clinical Implant Dentistry and Related Research
Vincent MilleretMartin Ehrbar

Abstract

Dental implants often have surface modifications that alter surface topography and chemistry to improve osseointegration and thereby increase treatment predictability. Surface contact-induced blood coagulation is associated with the onset of osseointegration. To quantitatively evaluate the thrombogenicity of two commercially available dental implants that have similar surface roughness but different surface chemistry. Two commercially available dental implants with anodized or sandblasted acid-etched surfaces were evaluated for thrombogenic properties. Thrombogenicity was assessed by incubating implants for 1 hour in fresh, partially heparinized blood followed by hemocyte quantification, microscopic evaluation, and quantification of thrombogenic biomarkers. Fibrin coverage was significantly higher on the anodized surface compared with the sandblasted acid-etched surface (P < 0.0001). Platelet and white blood cell attachment followed a similar pattern. The increased thrombogenicity was confirmed based on a significant increase in the levels of the coagulation cascade biomarkers, thrombin antithrombin complex, and β-thromboglobulin (all P < 0.05). Dental implants with comparable roughness but differing surface chemistry had diffe...Continue Reading

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Citations

Mar 17, 2021·Clinical Implant Dentistry and Related Research·Xinyu WuBin Shi
Aug 25, 2021·Dental Materials : Official Publication of the Academy of Dental Materials·Marcel F KunrathMaria M Campos

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