A patient's maxillary second molar needs root canal treatment. The patient would experience no discomfort during the treatment thanks to anaesthesia administered to the Posterior Superior Alveolar Nerve.
What is Posterior superior alveolar nerve?
The first branch of the infra-orbital nerve, which originates from the maxillary division of the trigeminal nerve, is the posterior superior alveolar nerve, also referred to as the posterior superior dental nerve. The superior dental plexus benefits from this initial superior alveolar nerve. The maxillary nerve's trunk gives rise to the posterior superior alveolar branches, also known as posterior superior dental branches, just before it enters the infraorbital groove. They often have two trunks, but this is not always the case.
They descend onto the maxillary tuberosity and release many branches onto the cheek's mucous membrane near the gums. Two of the three roots of the maxillary first molar and the second and third maxillary molars are innervated by the posterior superior alveolar nerve (all but the mesiobuccal root).
A posterior superior alveolar nerve block will, roughly 72% of the time, anaesthetize the mesialbuccal root of the maxillary first molar.
To learn more about the Posterior superior alveolar nerve
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