Fig. 4From: Biomechanical analysis of the human derived soft tissue graft Epiflex for use in oral soft tissue augmentationASG (a, c) and EF (b, d) images captured with a Scanning Electron Microscope at ×12 magnification (a, b) and ×150 magnification (c, d). EF (b) shows a clear cut-off edge with multiple fibers of the connective tissue layer still being connected. With a grater magnification EF (d) shows dense 20 μm thick upper layer. Underneath a network of fibers is visible. ASG (a) shows an inhomogeneous tear of edge. Some fibers are partly connected. ASG (c) incorporates glands which are incorporated in the connective tissue layerBack to article page