When the next drill (3.3 mm) is being used for 13 mm with stopper (Fig.5), the patient experiences transient pain.  The depth is suggested from the design in Fig.2.  The thin septum appears not to be a reliable landmark.  When block anesthesia is administered, the initial depth should be shortened.  The drill appears to be close to the Inferior Alveolar Canal (Fig.5).  Then the depth changes to 11 mm with the following drills (3.8 and 4.3).  The mesial and distal walls of the septum are gradually perforated.

Implant with Low Torque Last Next

Xin Wei, DDS, PhD, MS 1st edition 10/18/2016, last revision 09/03/2018