Expanded Polytetrafluoroethylene
Mostrando 1-9 de 9 artigos, teses e dissertações.
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1. Immunolocalization of markers for bone formation during guided bone regeneration in osteopenic rats
Objective The aim of this paper was to evaluate the repair of onlay autogenous bone grafts covered or not covered by an expanded polytetrafluoroethylene (e-PTFE) membrane using immunohistochemistry in rats with induced estrogen deficiency. Material and Methods Eighty female rats were randomly divided into two groups: ovariectomized (OVX) and with a simu
J. Appl. Oral Sci.. Publicado em: 2014-12
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2. The RANK/ RANKL/ OPG interaction in the repair of autogenous bone grafts in female rats with estrogen deficiency
The aim of this study was to evaluate the resorption process during the repair of autogenous bone grafts with or without coverage by an expanded polytetrafluoroethylene (e-PTFE) membrane in female rats with estrogen deficiency using the immunohistochemical technique. Eighty female rats were randomly divided into two groups (OVX and SHAM). The 40 female rats
Braz. oral res.. Publicado em: 15/09/2014
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3. Histometric analysis of alveolar bone regeneration with expanded polytetrafluoroethylene (e-PTFE) and latex membranes
AIM: To investigate the amount of connective tissue migrated into the extraction socket using EPTFE and latex membranes. METHODS: Seventeen rats were selected and randomly divided into 3 groups: e-PTFE membrane (n = 6), Latex membrane (n = 6) and Control (no membrane, n=5). After extraction of the maxillary right incisor, the animals of the test groups were
Braz. J. Oral Sci.. Publicado em: 2013-09
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4. Secure reconstruction technique after partial nephrectomy irrespective of tumor size and location
Introduction: Nephron-sparing surgery for large renal masses is not considered a safe procedure because of high complication rate. We present our experience using expanded polytetrafluoroethylene (Gore-Tex®) and Hem-O-Lok® (Weck® Clip) as hemostatic agents during open partial nephrectomy (OPN) to perform nephron-sparing surgery for large renal masses. Mat
International braz j urol. Publicado em: 2009-08
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5. Membrana de biopolÃmero de cana-de-aÃÃcar como substituto de dura-mÃter em ratos Wistar
Background: Duraplasty is necessary in nearly 30% of all neurological surgeries. Objectives: To determine the utilization of the sugar cane biopolymer membrane patch as a dural substitute in rats. Material and Methods: Forty adults males Wistar rats weighing 300-440g were randomly divided into two groups: a control and an experimental. All animals were anest
Publicado em: 2008
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6. Avaliação da resposta inflamatória desencadeada pelas telas de polipropileno e politetrafluoretileno expandido implantadas no espaço intraperitoneal : estudo experimental em camundongos
As telas de polipropileno (PP) e politetrafluoretileno expandido (PTFEe) representam os biomateriais mais comumente utilizados no reparo de hérnias da parede abdominal. O implante de próteses modifica o processo de cicatrização. Além dos mecanismos celulares, vários mediadores químicos estão envolvidos no processo de reparo tecidual. Apesar da respos
Publicado em: 2006
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7. Gore-Tex small-vessel angioplasty: A suitable substitute for the use of autogenous saphenous vein grafts
Autogenous saphenous vein has been the material of choice for small-vessel angioplasty and for circulatory access graft reconstruction. In an effort to conserve autogenous saphenous vein, we used expanded polytetrafluoroethylene (PTFE) grafts in 45 patients over a 12-month period. We used Gore-Tex* to reconstruct 17 circulatory access grafts, 16 carotid arte
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8. A prospective evaluation of plasma-TFE and expanded PTFE grafts for routine and early use as vascular access during hemodialysis.
The use of prosthetic grafts as vascular access for chronic hemodialysis is frequently necessary in patients with end-stage renal disease. Most commonly, expanded polytetrafluoroethylene (e-PTFE) has been employed because of ease of handling, tissue inertness, and acceptable long-term patency. Delay in use to allow for tissue ingrowth, however, has often req
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9. Early Experience with a New PTFE Graft below the Inguinal Ligament
Between July 1984 and July 1985, 65 expanded polytetrafluoroethylene grafts (Vitagraft®) were implanted in the infrainguinal position in 51 patients, including 41 men and 10 women, with an average age of 63 years. The indications for surgery were severe claudication (36 grafts) or ischemic necrosis of the extremities (29 grafts). Thirteen of the patients (2