Fig. 16 Fig. 13 Fig. 14 Fig. 17 Fig. 15 Collagen membranes are resorbable and can be used for socket preservation and simple horizontal GBR proce-dures. Collagen membranes may be cross-linked or native (non cross-linked). Cross-linked membranes provide a longer resorption time than native collagen membranes. 16 Dr. Urban states, “poor tissue integration, poor vascularization, and poor biocompatibility have been demonstrated with cross-linked collagen membranes. Native collagen membranes have good tissue integration and early vascularization from the periosteal side. They are also biocompatible. Vasculariza-Fig. 18 tion is a prerequisite for bone formation and may be one of the most important qualities of these membranes.” 16 Bio-Gide from Geistlich 3 (Fig. 17-A and B) is a native collagen membrane. It is the resorbable membrane I use in some socket preservations and some simple horizontal GBR procedures. Figure 17-C shows the Bio-Gide membrane being used in a socket preservation case I performed. Tooth #15 was extracted. A bone allograft was used to fill the socket void. The Bio-Gide membrane was tucked under the buccal flap, brought over the top of the grafted site, 36 Winter 2018 JAOS
Journal of the American Orthodontic Society Winter 2018: Page 36
