Osteotomy is created by using taps manually.  There is no engagement of 5x20 mm tap (at the depth of 17 mm) with the socket. When a 6x20 tap (17 mm deep) is inserted, it is stable (Fig.7).

Loop

Xin Wei, DDS, PhD, MS 1st edition 09/05/2013, last revision 01/01/2014