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. Author manuscript; available in PMC: 2009 May 1.
Published in final edited form as: Oral Maxillofac Surg Clin North Am. 2008 May;20(2):221–vii. doi: 10.1016/j.coms.2007.12.008

Figure 2. Tissues Innervated by the Three Branches of the Trigeminal Nerve.

Figure 2

The vast majority of the brain and associated structures are innervated by branches of the ophthalmic branch nerve of the trigeminal nerve (yellow). A small portion are innervated by the maxillary branch (orange) and mandibular branch (red). Stimulation of intracranial nociceptive fibers in the colored areas is thought to result in pain being perceived in the corresponding trigeminal branches of the orofacial region, including the teeth and alveolar bone. From Alonso AA & Nixdorf DR. Case series of four different headache types presenting as tooth pain. J Endod 2006;32:1110–1113, with permission.