Since primary stability is lower (<20 Ncm vs. 35 Ncm associated with the implant #29), an abutment is not placed, which may be favorable to healing, but it is difficult to achieve primary closure.  After bone graft (Fig.9 *) and 2 layers of PRF, Cytoplast is placed.  While the bone height decreases at #29, the bone density at #30 increases 4.5 months postop (Fig.15).  The gingiva heals.

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Xin Wei, DDS, PhD, MS 1st edition 06/29/2020, last revision 07/01/2020