Osteotomy is initiated in the lingual slope (Fig.4 red dashed line) of each socket with 1.2 and 2 mm drills for 16 and 19 mm at #26 and 27, respectively (Fig.2,3).

Prevent Perforation

Xin Wei, DDS, PhD, MS 1st edition 07/15 /2017, last revision 07/15/2017