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 *).  One year post cementation, the crown at #31 needs recementation (Fig.9); the bone density next to the coronal implant increases (*).

Ridge Reduction Last Next Xin Wei, DDS, PhD, MS 1st edition 11/09/2018, last revision 11/10/2018