Toothgram🦷

Muscles of Mastication Review 👀

Nerve supply 🦷

Local Anesthetic Techniques for the Infraorbital Nerve Block 👉The infraorbital nerve exits the infraorbital foramen 4–7mm below the orbital rim in an imaginary line dropped from the medial limbus of the iris or the pupillary mid-line. 👉Areas anesthetized include the lateral nose, anterior cheek, lower eyelid, and upper lip on the injected side. Pulpal anesthesia provided to incisors, canine, premolars and mesio-buccal root of the first molar along with the soft tissue and periosteum overlying the mentioned teeth. This nerve can be blocked either by the intraoral or extraoral route. 👉To perform an infraorbital nerve block from an intraoral approach, topical anesthesia is placed on the oral mucosa at the vestibular sulcus just under the canine fossa (between the canine and first premolar tooth) and left for several minutes. The lip is then elevated and a 1.5-inch 27 gaugeneedle is inserted in the sulcus and directed superiorlytoward the infraorbital foramen (see Fig). The needle does not need to enter the foramen for a successful block. The anesthetic solution needs only to contact the vast branching around the foramen to be effective. It is imperative to use the other hand to palpate the inferiororbital rim to avoid injecting the orbit. Two to four cc of 2% lidocaine with 1:100,000 epinephrine is injected in this area for the infraorbital block.

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