In-vivo comparisons of clot formation on titanium and hydroxyapatite-coated titanium
| Autor: | James L. Drummond, Arnold D. Steinberg, Ruth L. Willey |
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| Rok vydání: | 1992 |
| Předmět: |
Materials science
Time Factors Platelet Aggregation Scanning electron microscope Surface Properties Dentistry chemistry.chemical_element Platelet Adhesiveness In vivo Extraction site Alloys Periodontal fiber Humans Blood Coagulation Dental Implants Titanium Fibrin business.industry Dental Implantation Endosseous Blood Proteins Clot formation Durapatite chemistry Microscopy Electron Scanning Periodontics Implant Hydroxyapatites business circulatory and respiratory physiology Biomedical engineering Dental Alloys |
| Zdroj: | Journal of periodontology. 63(12) |
| ISSN: | 0022-3492 |
| Popis: | We investigated in vivo clot formation on the surface of hydroxyapatite (HA)coated titanium (Ti) implants and on non-coated Ti implants. Immediately after tooth extraction implant samples were inserted into the blood clot, in the same extraction site, for 1, 30, 60, or 120 seconds. Samples were processed for scanning electron microscopy (SEM). Qualitative observations of clotting topography were made by direct SEM viewing. Neither of the implant surfaces appeared to differ markedly in the degree of clotting during the 120 seconds of implantation; they revealed very early clot formation and limited clot attachment. These results were compared to the findings obtained in a previous study using identical methods with an intact periodontal ligament (PDL), root planed roots, and roots planed and treated with pH 1 citric acid. The PDL surface had the most rapid clot formation at all time periods. By 120 seconds, all root surfaces had completed clot formation. J Periodontol 1992; 63:990–994. |
| Databáze: | OpenAIRE |
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