Maxillary Anesthesia Techniques

The type of injection administered in maxillary anesthesia is determined by the location where the anesthetic solution is deposited relative to the area of the procedure.

The AMSA injection is significant in local anesthesia because it provides anesthesia with fewer injections and less pain for the patient.

In local infiltration, the anesthetic solution is deposited directly at or above the apex of the tooth being treated, targeting the nerve supply to that specific tooth.

The greater palatine canal approach aims to anesthetize the maxillary nerve by depositing anesthetic near its main branch in the canal.

A pterygopalatine fossa block is a type of nerve block that is used to anesthetize the maxillary nerve by depositing anesthetic near its main branch in the pterygopalatine fossa.

An infiltration injection is a technique where the local anesthetic solution is deposited at or above the apex of the tooth being treated.

Using a computerized local injection technique offers a less painful experience for the patient compared to traditional syringe methods.

In a field block, the local anesthetic is deposited near the larger terminal nerve branches of the target area, blocking nerve impulses from the tooth to the brain.

The purpose of depositing anesthetic near the larger terminal nerve branches in a field block is to prevent the passage of nerve impulses from the tooth to the brain, effectively blocking pain sensations.

An intraoral maxillary nerve block is a technique that can anesthetize the maxillary nerve by targeting its branches within the oral cavity.

The second-division nerve block is used to anesthetize the zygomatic nerve, a branch of the maxillary nerve, affecting sensation in the cheek and upper lip area.

In a field block, the injection site is located away from the area being treated, targeting the nerve branches that supply the target area.

The recommended rate of needle insertion during a maxillary nerve block is 1 to 2 mm every 4 to 6 seconds, ensuring a controlled and safe procedure.

The recommended rate of local anesthetic administration during a pterygopalatine fossa block is 0.5 mL/min, to avoid discomfort and potential complications.

The greater palatine canal approach offers a significant advantage over traditional injections by requiring a smaller volume of anesthetic solution for effective anesthesia.

A potential complication of the second-division nerve block that can occur 1 to 2 days postoperatively is a palatal ulcer at the injection site, due to tissue irritation.

It is important to avoid excessive concentrations of a vasoconstrictor during a maxillary nerve block to minimize the risk of ischemia, which can restrict blood flow to the area.

To prevent the squirt back of anesthetic and a bitter taste during a pterygopalatine fossa block, it is essential to aspirate before injecting the anesthetic solution, ensuring the needle is not in a blood vessel.