نتایج جستجو برای: composite tissue allotransplantation
تعداد نتایج: 1031031 فیلتر نتایج به سال:
Vascularized composite allotransplantation (VCA) is an effective treatment option for patients suffering from limb loss or severe disfigurement. However, postoperative courses of VCA recipients have been complicated by skin rejection, and long-term immunosuppression remains a necessity for allograft survival. To widen the scope of this quality-of-life improving procedure minimization of immunos...
AIM Radiopacity is a fundamental requisite to check marginal adaptation of restorations. Our objective was to assess the radiopacity of 28 brands of light-cured composite resins and compare their radiopacity with that of enamel, dentin, and aluminum of equivalent thickness. MATERIALS AND METHODS Composite resin disks (0.2, 0.5, and 1 mm) were radiographed by the digital method, together with ...
Composite tissue allotransplantation (CTA) is a recently introduced option for limb replacement and reconstruction of tissue defects. As with other allografts, CTA can undergo immune-mediated rejection; therefore standardized criteria are required for characterizing and reporting severity and types of rejection. This article documents the conclusions of a symposium on CTA rejection held at the ...
The aim of this study was to evaluate the radiopacity of silorane and methacrylate resin composites, comparing them to the enamel, dentin, and aluminum penetrometer using a digital image. From six resin composites (Filtek™ P90, Filtek Z350, Filtek Z350 XT flow, Tetric Ceram, TPH Spectrum, and SureFil SDR flow) cylindrical disks (5 × 1 mm) were made and radiographed by a digital method, together...
Vascularized composite allotransplantation (VCA) has the potential to reconstruct any non-visceral tissue defect, using like for like tissue, delivering optimal form and function. Over 150 VCA transplants have been performed worldwide; however, this treatment remains experimental. Things systematically tried in the clinic should follow thorough science and tested in a model that allows predicti...
1 Vascularized and Composite Allotransplantation Laboratory, Department of Plastic and Reconstructive Surgery, Johns Hopkins School of Medicine, Baltimore, MD, USA, 2 Nuffield Department of Surgical Sciences, Oxford University, John Radcliffe Hospital, Oxford, UK, 3 Theoretical Biology and Biophysics Group, Los Alamos National Laboratory, Los Alamos, NM, USA, 4 Department of Mathematical Scienc...
Vascularised composite allotransplantation (VCA) represents an exciting and emerging field in plastic and reconstructive surgery. Despite the generally good functional and psychosocial outcomes, multiple complications can be associated with the procedure. The authors describe a case of avascular necrosis of the humeral head following successful upper extremity VCA.
Although vascularized composite allografts (VCAs) have been performed clinically for a variety of indications, potential complications from long-term immunosuppression and graft-versus-host disease remain important barriers to widespread applications. Recently it has been demonstrated that VCAs incorporating a vascularized long bone in a rat model provide concurrent vascularized bone marrow tra...
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