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The bone distal to #18 is lost severely (Fig.1). After #17 extraction and granulation tissue removal, Collagen Plug (Fig.3'' C), Osteogen Plug (O) and cortical/cancellous (50/50) mineralized allograft (.5-1 mm) saturated with ~ .2 ml of .3 mg/ml of rhPDGF-BB (B, one component of GEM21S) is placed in the socket.
Xin Wei, DDS, PhD, MS 1st edition 03/12/2020, last revision 03/12/2020