Septal placement (6.9x8 mm bone level implant) is the most ideal for restoration (Fig.3).  The coronal end of the implant is in the middle of the socket.

The length of the implant can be increased (10 mm, Fig.4) with sinus lift (Fig.4' arrows) so that the apex of the implant between the buccal and palatal apices in height.

Fig.4': The apical end of the implant can be covered by the lifted sinus floor (arrows).

Osteotomy Sites

Xin Wei, DDS, PhD, MS 1st edition 12/28/2014, last revision 12/28/2014