Supraperiosteal (local) infiltration

For supraperisoteal infiltration, insert the needle into the mucobuccal fold centered on the tooth to be anesthetized. The bevel of the needle should be facing the bone. Aim towards the maxilla and, once contact is made with the bone, withdraw the needle one mm. Aspirate to ensure you are not in a vessel and inject one to two mL local anesthetic at the apex of the root tip.