Is the infraorbital nerve part of the trigeminal nerve?

The infraorbital nerve is the termination of the second division of the trigeminal nerve, the maxillary nerve (Fig. 42.12A). This nerve is entirely sensory in function. It leaves the skull through the foramen rotundum and enters into the pterygopalatine fossa.

Where is the location of the trigeminal nerve?

Each trigeminal ganglion is located near your temple at the side of your head, in front of your ear. The trigeminal ganglion splits into three trigeminal nerve branches. These branches travel along each side of your head to different parts of your face.

What does the infraorbital nerve affect?

The infraorbital nerve supplies sensory innervation to the lower eyelid, the side of the nose, and the upper lip (see image below). Since the infraorbital nerve provides a considerably large area of sensory innervation, it is a prime candidate for a regional nerve block.

Where is the infraorbital nerve?

The infraorbital nerve divides off the maxillary division just after emerging from the foramen rotundum to enter the pterygopalatine fossa. It courses laterally over the palatine bone and maxilla to enter the orbit through the inferior orbital fissure.

Where is infraorbital area?

The infraorbital region is a component of the midface and can be defined as the anatomical area between the nasal aperture and the zygomatic bone below the inferior rim of the orbit and above the roots of the maxillary canine and premolars (Fig. 6.1).

What is infraorbital neuralgia?

Neuralgia of the infraorbital nerve is an unusual cause of facial pain. The patient experiences paroxysmal or constant discomfort, often in the form of stabbing pain, in the distribution area of the infraorbital nerve. 1 The sensation is associated with hypersensitivity to palpation in the infraorbital notch.

Where does the trigeminal nerve start and end?

The trigeminal nerve exits the brainstem from the pons and branches out into 3 sections that supply the upper, middle and lower portions of the face. The upper most branch, the ophthalmic nerve, supplies sensation to the scalp and forehead.

What causes infraorbital nerve pain?

Causes of infraorbital neuralgia (nerve pain) include trauma, plastic surgery, shingles or other viral infections that lead to nerve irritations. Symptoms of infraorbital neuralgia include sharp, shooting and tingling pain. Areas of the face may become very sensitive to touch.

What teeth does the infraorbital nerve innervate?

The infraorbital nerve, a purely sensory branch of the trigeminal nerve (V), courses through the infraorbital canal before entering the face via the infraorbital foramen. It innervates the maxillary cheek teeth, the skin of the nose, skin and mucosa of the muzzle, and the upper lip.

How long does it take for infraorbital nerve to heal?

In moderate cases, complete recovery was seen within 6 months and in 34.6% of the severe cases, within a 12-month period after treatment when infraorbital nerve decompression was performed according to the stated indication.