In fact the osteotomy is established in the mesial slope of the socket (Fig.10 red dashed line).  There is more resistance mesially.  To correct the trajectory (Fig.11 arrow), the mesial bone should have been removed (red triangle).  Or the implant should have been leaned as mesial as possible while being placed. 

Trajectory Last Next Xin Wei, DDS, PhD, MS 1st edition 09/07/2015, last revision 07/16/2019