Which of the following angulations of the needle MUST be followed during the administration of the posterior superior local anesthetic nerve block?
A)Superiorly at approximately 45 degrees and medially at approximately 90 degrees to the occlusal plane
B)Superiorly at approximately 90 degrees and medially at approximately 45 degrees to the occlusal plane
C)Superiorly at approximately 45 degrees and medially parallel to the occlusal plane
D)Superiorly at approximately 45 degrees and medially at approximately 45 degrees to the occlusal plane

Question

Quizplus · Accepted Answer

For the posterior superior alveolar (PSA) nerve block, the correct angulation of the needle is superiorly at approximately 45 degrees and medially at approximately 45 degrees to the occlusal plane. This angulation helps in targeting the PSA nerve accurately while minimizing the risk of needle breakage and ensuring effective anesthesia of the maxillary molars (except for the mesiobuccal root of the first molar, which is usually innervated by the middle superior alveolar nerve).

Which of the Following Angulations of the Needle MUST Be