When a 3.8x12 mm SM implant is placed with 40 Ncm, there is 1-2 mm cortical bone buccolingually (primary stability, Fig.4,5).  The thick cortices do not seem to be easy to be bent, i.e., expanded.

There appears dense bone formation 3 months postop (Fig.8 *).

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Xin Wei, DDS, PhD, MS 1st edition 07/13/2017, last revision 11/10/2018