What Is the Best Correction to Make During an IA

What is the best correction to make during an IA injection when no bony contact is met at target depth?

A) Reposition the syringe over the contralateral canine and re-advance the needle until bony contact is met.
B) Withdraw the needle at least half way, reposition the syringe over the molars, re-advance the needle until bone is met.
C) Aspirate in two plane to assure negative aspiration and inject 1.8 mL.
D) Withdraw the needle and select an alternate technique.