Since the bone has low density, osteotomies are under prepared with using long implants. A 3.8x15 mm implant is incompletely seated at #7 initially (Fig.5). After increase in ostoeotmy depth at #7, the 3.8x15 mm implant is placed deeper (Fig.7 arrow (<: allograft)). Abutment: 4.5x5.5(4) mm.
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Xin Wei, DDS, PhD, MS 1st edition 02/23/2016, last revision 07/16/2018