Fig.8: Five months after implantation, the gap next to the implant disappears, suggesting implant osteointegration (compare to Fig.7).  Extraoral cementation is done between abutment (A) and crown (C).  The abutment/crown unit is tapped into the implant with 2 visible threads (<).  The latter indicates that the abutment is completely seated.

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Xin Wei, DDS, PhD, MS 1st edition 09/14/2013, last revision 09/15/2013