An immediate implant will be placed at #17 after bridge removal (Fig.3 blue).   It appears that a 5x13 mm implant is safe for the site with enough clearance for 5.5x4(2) abutment (pink).

Implant As Upright Anchorage

Xin Wei, DDS, PhD, MS 1st edition 11/16/2016, last revision 11/16/2016