PSA// POSTERIOR SUPERIOR ALVEOLAR NERVE BLOCK// Oral surgery// Nerve blocks// Maxillary block/dental

Описание к видео PSA// POSTERIOR SUPERIOR ALVEOLAR NERVE BLOCK// Oral surgery// Nerve blocks// Maxillary block/dental

The posterior superior alveolar nerve (PSAN) block is a dental nerve block used for profound anesthesia of the maxillary molars.

Insertion site: Height of the mucobuccal fold distal to the zygomatic process and superior to apex of the maxillary second molar. Angulations: Outward laterally at 45-degree angle from the midsagittal plane and downward 45-degree angle from the occlusal plane.

When the PSA is combined with the anterior middle superior alveolar (AMSA) block, the entire hemimaxilla may be anesthetized (including palatal tissues).

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