A drawback of implant planning at #25 is not to use a preop PA (Fig.1 (^ fracture line)). The initial trajectory seems to be alright (Fig.2 (red line: socket; D: 1.2 mm drill)), but a 2.5x14(2) mm implant placed is close to the tooth #26 (Fig.3 (allograft having been placed)). The latter may be related to more bone loss in the distal crest 3.5 months postop (Fig.8) and more severe distal papillary recession (Fig.9 *). The meisal bone seems to be wider. The bone density increases at the levels of the non-thread and thread portions of the implant (in the original socket) nearly 10 months post cementation (Fig.11 *, <). The bone density increase is related to deep placement of the implant. There is no bone loss 16 months post cementation (Fig.12).
Trajectory Last Next
Xin Wei, DDS, PhD, MS 1st edition 01/27/2021, last revision 01/27/2021