How can an intraoral V2 block be administered?

The intraoral V2 block, also known as the maxillary nerve block, is typically administered through the greater palatine canal. This technique allows for deposition of anesthetic solution near the foramen rotundum, where the maxillary nerve emerges, thus effectively anesthetizing the V2 branch of the trigeminal nerve.

Administering the block via the greater palatine canal involves carefully inserting a needle into the canal and advancing it toward the foramen rotundum. This method is advantageous as it provides a direct access route to the nerve, ensuring a higher success rate for anesthesia of the maxillary teeth and palate.

Other methods of administering a V2 block, such as accessing through the pterygopalatine fossa or maxillary sinus, are not typically performed intraorally and may pose greater risks or complications. Similarly, injection in the vestibule of the upper jaw would not target the maxillary nerve effectively, as it primarily anesthetizes more localized structures rather than providing the broader inhibition achieved through the greater palatine canal route.