Comparative study of vitreous carbon, pyrolytic carbon, pyrolytic graphite/silicon-carbide, and titanium implants in rabbit mandibles
| Autor: | Petro S. Maropis, Billy N. Appel, John A. Molinari, Andrejs Baumhammers |
|---|---|
| Rok vydání: | 1977 |
| Předmět: |
New Zealand Albino
Silicones chemistry.chemical_element Biocompatible Materials Mandible Pathology and Forensic Medicine Carbon particle chemistry.chemical_compound Silicon carbide Animals Medicine Pyrolytic carbon General Dentistry Titanium Phagocytes business.industry Macrophages Dental Implantation Endosseous Rabbit (nuclear engineering) Dental Porcelain Carbon Fibrous connective tissue chemistry Connective Tissue Female Graphite Rabbits Crystallization business Biomedical engineering |
| Zdroj: | Oral Surgery, Oral Medicine, Oral Pathology. 43:506-512 |
| ISSN: | 0030-4220 |
| Popis: | For some time, metals, plastics, and ceramics have been used for the construction of dental endosseous implants. Recently, vitreous carbon has been used, and the results have been encouraging. In a limited study using twelve New Zealand albino rabbits, vitreous carbon, pyrolytic carbon, and pyrolytic graphite/silicon-carbide implants were placed into the inferior borders of the rabbit mandibles. Titanium was used as a control, and each rabbit mandible received one each of the four materials. The experimental animals were then killed in groups of four at 14, 45, and 90 days, and the tissues surrounding the implants were evaluated histologically. All specimens revealed fibrous connective tissue capsules of varying thicknesses. Macrophages were present in some specimens, with evidence of those macrophages having phagocytized carbon particles. The conclusion reached was that none of the materials employed in this study was completely compatible with the rabbit mandibular tissues. |
| Databáze: | OpenAIRE |
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