PMC3591090_01
OPG showing osseous metaplasia of stylohyoid ligament
AMS-2-66-g001.jpg
PMC3591090_01_AMS-2-66-g001.jpg
F1
Orthopantomogram (OPG) [Figure 1] showed bilateral impacted third molars.
Schematic diagram of landmarks, seen from a lateral view of skull
AMS-2-66-g002.jpg
PMC3591090_01_AMS-2-66-g002.jpg
F2
The ear lobe, Frankfurt horizontal plane (FHP), and attachment of masseter muscle on the ascending ramus served as landmark for the point of insertion of needle [Figure 2].
Demonstrating final injection position, in the region of styloid process
AMS-2-66-g003.jpg
PMC3591090_01_AMS-2-66-g003.jpg
F3
The syringe was now angled anteriorly, some 30  from the previous position, while keeping it parallel to FHP, and inserted further to a total penetration depth of 24 mm. 1.5 ml of solution was deposited in this position [Figure 3].