As CT indicates (07/30/2018), there is ~ 3 mm bone for primary stability with ~ 1 mm clearance (Fig.3-6). Because of the tapered implant, ~5 mm of the implant will be able to contact the native bone if the implant is lingually placed (Fig.6).
Xin Wei, DDS, PhD, MS 1st edition 08/02/2018, last revision 08/02/2018