Because of horizontal impaction, the mesial root tip (Fig.1' *) overlaps with the Inferior Alveolar Canal.  5x5 cm CT will be taken with special bite block to show the ramus as posterior as possible (internal and external oblique ridges). 

Cocktail Graft       Last     Next

Xin Wei, DDS, PhD, MS 1st edition 08/13/2021, last revision 08/14/2021