The initial osteotomy is established at #6 and 7 with 1.5 mm and 1.2 mm drills, respectively (Fig.7).  A 3x18 mm drill and 2.5x14 (2) mm 1-piece implant are at #6 and 7, respectively (Fig.8).  For a female patient with possible osteoporosis, osteotomy should be under prep.  Osteotomy at #6 for 18 mm for 15 mm implant is over prep.  The implant does not achieve high primary stability until it is seated deep.

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Xin Wei, DDS, PhD, MS 1st edition 01/06/2017, last revision 03/04/2020