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The infraorbital nerve is a branch of the maxillary nerve (itself a branch of the trigeminal nerve (CN V)). [1] It arises in the pterygopalatine fossa . It passes through the inferior orbital fissure to enter the orbit. [ 2 ]
The clinically important structures surrounding the orbit include the optic nerve at the apex of the orbit as well as the superior orbital fissure which contains cranial nerves 3, 4, and 6 therefore controlling ocular muscles of eye movement. [15] Inferior to the orbit is the infraorbital nerve which is purely sensory.
Its specific locations are the lateral orbital wall (at its superior junction with the zygomaticofrontal suture or its inferior junction with the zygomaticosphenoid suture at the sphenoid greater wing), separation of the maxilla and zygoma at the anterior maxilla (near the zygomaticomaxillary suture), the zygomatic arch, and the orbital floor ...
Inferior alveolar nerve block (abbreviated to IANB, and also termed inferior alveolar nerve anesthesia or inferior dental block) is a nerve block technique which induces anesthesia (numbness) in the areas of the mouth and face innervated by one of the inferior alveolar nerves which are paired on the left and right side.
The nerves arise from the trunk of [citation needed] the maxillary nerve (CN V 2) within the pterygopalatine fossa [1]: 496 just before it enters the infraorbital groove. [ citation needed ] The nerve arises as a single trunk which split into 2-3 nerves within the pterygopalatine fossa.
The most common complication of Le Fort fractures include imperfect fracture reduction resulting in poor dental occlusion. [2] Other longterm effects of Le Fort fractures include various nerve injuries, either from the inciting injury or from surgical correction, resulting in facial movement and sensory deficits. [ 2 ]
Nerve block or regional nerve blockade is any deliberate interruption of signals traveling along a nerve, often for the purpose of pain relief. Local anesthetic nerve block (sometimes referred to as simply "nerve block") is a short-term block, usually lasting hours or days, involving the injection of an anesthetic, a corticosteroid, and other agents onto or near a nerve.
Infraorbital nerve enlargement (IONE) is considered to be a particularly suspicious sign of IgG4-ROD, but seems to occur only when inflammation is in direct contact with the infraorbital canal. [10] IONE is defined as the infraorbital nerve diameter being greater than the optic nerve diameter in the coronal plane .