Which nerve block targets the area around the second and third molars?

The PSA (Posterior Superior Alveolar) nerve block specifically targets the nerves that provide sensation to the maxillary molars, primarily the second and third molars, as well as the adjacent buccal tissues. This nerve block is particularly effective for procedures involving these teeth, as it anesthetizes the posterior portion of the maxilla where these molars are located. By aiming to block the posterior superior alveolar nerve, clinicians can achieve sufficient anesthesia during dental procedures in that area, ensuring that patients are comfortable and pain-free.

In contrast, other nerve blocks listed do not provide the same coverage. The MSA (Middle Superior Alveolar) nerve block is typically used to anesthetize the first molar and bicuspids, while the IA (Inferior Alveolar) nerve block primarily targets the mandibular teeth. The Buccal nerve block focuses on the buccal soft tissues but does not encompass the molar teeth themselves. This makes the PSA nerve block the most appropriate choice for addressing the needs specifically related to the second and third molars.