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