After placement of a 3.5x11.5 mm implant with ~ 50 Ncm at #19 (Fig.1,2), the narrow mesiodistal space seems difficult for uncover if a healing screw is placed.  A 4x3 mm healing abutment is placed.

RPD Clearance Next Xin Wei, DDS, PhD, MS 1st edition 12/07/2018, last revision 12/07/2018