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A Hydrophilic Dental Implant Surface Exhibit Thrombogenic Properties In Vitro
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Immunology, Genetics and Pathology, Clinical Immunology. (Bo Nilsson)
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Oncology, Radiology and Clinical Immunology, Clinical Immunology. (Bo Nilsson)
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences, Oral and Maxillofacial Surgery.
2013 (English)In: Clinical Implant Dentistry and Related Research, ISSN 1523-0899, E-ISSN 1708-8208, Vol. 15, no 1, 105-112 p.Article in journal (Refereed) Published
Abstract [en]

Background:

Surface modifications of dental implants have gained attention during several years and the thrombotic response from blood components with these materials has become more important during recent years.

Purpose:

The aims of this study were to evaluate the thrombogenic response of whole blood, in contact with clinically used dental surfaces, Sandblasted Large grit Acid etched titanium (SLA) and Sandblasted Large grit Acid etched, and chemically modified titanium with hydrophilic properties (SLActive).

Methods:

An in vitro slide chamber model, furnished with heparin, was used in which whole blood came in contact with slides of the test surfaces. After incubation (60-minute rotation at 22 rpm in a 37°C water bath), blood was mixed with ethylenediaminetetraacetic acid (EDTA) or citrate, further centrifuged at +4°C. Finally, plasma was collected pending analysis.

Results:

Whole blood in contact with surfaces resulted in significantly higher binding of platelets to the hydrophilic surface, accompanied by a significant increase of contact activation of the coagulation cascade. In addition, the platelet activation showed a similar pattern with a significant elevated release of β-TG from platelet granule.

Conclusions:

The conclusion that can be drawn from the results in our study is that the hydrophilic modification seems to augment the thrombogenic properties of titanium with implications for healing into bone of, that is titanium dental implants.

Place, publisher, year, edition, pages
2013. Vol. 15, no 1, 105-112 p.
National Category
Biomaterials Science Dentistry
Identifiers
URN: urn:nbn:se:uu:diva-171030DOI: 10.1111/j.1708-8208.2011.00362.xISI: 000314110900014PubMedID: 21745323OAI: oai:DiVA.org:uu-171030DiVA: diva2:510110
Available from: 2012-03-15 Created: 2012-03-15 Last updated: 2017-12-07Bibliographically approved

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Hong, JaanThor, Andreas

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