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A 18 mm long implant is required for primary stability (4 mm in the new bone, Fig.6).
Fig.7: Illustration of implant placement (green) after extraction (black area). *: implant well, which should be blocked by a healing screw prior to bone graft placement.
Xin Wei, DDS, PhD, MS 1st edition 03/11/2016, last revision 01/19/2018