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Histological morpho...
Histological morphology of the e-PTFE/tissue interface in humans subjected to guided bone regeneration in conjunction with oral implant treatment.
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- Dahlin, Christer, 1959 (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för de kirurgiska disciplinerna, Avdelningen för biomaterialvetenskap,Institute of Surgical Sciences, Department of Biomaterials
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Simion, M (författare)
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- Nannmark, Ulf, 1958 (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för anatomi och cellbiologi,Institute of Anatomy and Cell Biology
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visa fler...
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- Sennerby, Lars, 1960 (författare)
- Gothenburg University,Göteborgs universitet,Odontologiska institutionen,Institute of Odontology
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visa färre...
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(creator_code:org_t)
- 2001-12-25
- 1998
- Engelska.
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Ingår i: Clinical oral implants research. - : Wiley. - 0905-7161. ; 9:2, s. 100-6
- Relaterad länk:
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https://gup.ub.gu.se...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- The purpose of the present investigation was to study the histological morphology of the e-PTFE membrane/tissue interface in 5 humans subjected to GBR treatment in conjunction with oral implant treatment. Oral implants (Brånemark System) were inserted in extraction sockets 1 to 2 months after extraction of periodontally diseased teeth. The implants were placed approximately 2 mm below the surrounding bone margins. Specially designed 3 mm high cover-screws with horizontal slits for tissue ingrowth were applied to the implants and covered with e-PTFE membranes (GoreTex Augmentation Material). Re-entry was made 7 months later, except in 1 case where the membrane was removed 1 month postoperatively due to exposure and infection. In the remaining 4 sites, circular biopsies comprising membranes, tissues and cover-screws were retrieved. The specimens were fixated, processed and sectioned for light- and transmission electron microscopy. The space between the membrane and the cover-screw was occupied by fibrous tissue and varying amounts of bone. A cell- and vessel-rich fibrous tissue separated the bone from the membrane in the majority of the specimens. The membrane itself was penetrated by fibrous tissue. Fibroblasts and macrophages were the main cell types found in the fibrous tissue. The presence of irregularly shaped cells and unevenly distributed collagen fibres, indicated that the absence of bone formation may be due either to micromovements in the e-PTFE/tissue interface or to formation of fibrous tissue underneath the membrane by penetrating fibroblasts or a combination of these 2 phenomena.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Odontologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Dentistry (hsv//eng)
Nyckelord
- Bone Regeneration
- Dental Implantation
- Endosseous
- Female
- Guided Tissue Regeneration
- Periodontal
- Humans
- Male
- Membranes
- Artificial
- Middle Aged
- Periodontium
- pathology
- physiology
- Polytetrafluoroethylene
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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