A 5x10 mm implant is intentionally placed distal at #19 using guided surgery (Fig.1).  When it is osteointegrated, it will be used as an anchorage to upright the tooth #18 orthodontically.  In fact the implant is mistakenly placed 1.5 mm deeper than planned without significant side effect (paresthesia).  The healing abutment dislodges (probably as related to deep placement of the implant) 20 days postop and is retightened.  There is mild crestal bone loss 4 months postop (Fig.2).  The tooth #18 is distalized ~ 1 mm shown by X-ray, although more clinically, 2.5 months post open coil spring.  The bone density around the implant, particularly mesial (Fig.6 *), increases 8 months postop, as compared to Fig.2.  The width of the dense bone around the implant increases 14 months postop (3 months post cementation, Fig.9 (arrow)).

Distal Placement Last Next 植牙，导板与正畸 5-Year Post Cementation Xin Wei, DDS, PhD, MS 1st edition 06/01/2019, last revision 01/10/2021