Show simple item record Szabó, György Barabás, József Lajos Bogdán, Sándor Németh, Zsolt Sebok B Kiss, Gábor 2017-06-19T09:59:26Z 2017-06-19T09:59:26Z 2015
dc.identifier.citation pagination=34, pages 14; journalVolume=37; journalIssueNumber=1; journalTitle=MAXILLOFACIAL PLASTIC AND RECONSTRUCTIVE SURGERY;
dc.identifier.uri doi:10.1186/s40902-015-0031-3
dc.description.abstract BACKGROUND:Over the past 30-40years, various carbon implant materials have become more interesting, because they are well accepted by the biological environment. The traditional carbon-based polymers give rise to many complications. The polymer complication may be eliminated through carbon fibres bound by pyrocarbon (carbon/carbon). The aim of this study is to present the long-term clinical results of carbon/carbon implants, and the results of the scanning electron microscope and energy dispersive spectrometer investigation of an implant retrieved from the human body after 8years.METHODS:Mandibular reconstruction (8-10years ago) was performed with pure (99.99%) carbon implants in 16 patients (10 malignant tumours, 4 large cystic lesions and 2 augmentative processes). The long-term effect of the human body on the carbon/carbon implant was investigated by comparing the structure, the surface morphology and the composition of an implant retrieved after 8years to a sterilized, but not implanted one.RESULTS:Of the 16 patients, the implants had to be removed earlier in 5 patients because of the defect that arose on the oral mucosa above the carbon plates. During the long-term follow-up, plate fracture, loosening of the screws, infection or inflammations around the carbon/carbon implants were not observed. The thickness of the carbon fibres constituting the implants did not change during the 8-year period, the surface of the implant retrieved was covered with a thin surface layer not present on the unimplanted implant. The composition of this layer is identical to the composition of the underlying carbon fibres. Residual soft tissue penetrating the bulk material between the carbon fibre bunches was found on the retrieved implant indicating the importance of the surface morphology in tissue growth and adhering implants.CONCLUSIONS:The surface morphology and the structure were not changed after 8years. The two main components of the implant retrieved from the human body are still carbon and oxygen, but the amount of oxygen is 3-4 times higher than on the surface of the reference implant, which can be attributed to the oxidative effect of the human body, consequently in the integration and biocompatibility of the implant. The clinical conclusion is that if the soft part cover is appropriate, the carbon implants are cosmetically and functionally more suitable than titanium plates.
dc.relation.ispartof urn:issn:2288-8101
dc.title Long-term clinical and experimental/surface analytical studies of carbon/carbon maxillofacial implants
dc.type Journal Article 2017-05-27T13:24:29Z
dc.language.rfc3066 en
dc.identifier.mtmt 2955958
dc.identifier.pubmed 26451362
dc.contributor.department BME/TTK/FI/Atomfizika Tanszék
dc.contributor.department SE/FOK/Arc- Állcsont- Szájsebészeti és Fogászati Klinika
dc.contributor.institution Budapesti Műszaki és Gazdaságtudományi Egyetem
dc.contributor.institution Semmelweis Egyetem

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