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Alveolar Nerves
Tooth (Mandibular First Molar)

Alveolar Nerves

Nervi alveolares

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Quick Facts

The superior and inferior alveolar nerves supply the maxillary and mandibular teeth, respectively.

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Anatomical Relations

The inferior alveolar nerve, a branch of the mandibular division of the trigeminal nerve, follows the same pattern of branching as the inferior alveolar artery. The branches of the inferior alveolar nerve that travel through the root canal are known as pulp sensory nerves.

These pulpal sensory nerves subsequently branch into the subodontoblastic plexus in the pulp cavity. Additionally, unmyelinated postganglionic sympathetic fibers (vasoconstrictors) from the superior cervical ganglion enter the pulp and innervate arterioles that have arisen from the inferior alveolar artery (Standring, 2016).


Alveolar nerves are responsible for supplying sensation to the teeth.


Standring, S. (2016) Gray's Anatomy: The Anatomical Basis of Clinical Practice. Gray's Anatomy Series 41 edn.: Elsevier Limited.

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