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Roots wrapped around person sketch12/2/2023 ![]() It provides services for these tissues, and also branches off to and provides sensory perception for the tongue. – This nerve runs through the soft tissues that cover over the inside surface of the lower jaw. (If the Inferior Alveolar nerve displays symptoms of paresthesia, this branch will too.) It exits the jawbone and runs to and services the tissues of the lower lip and chin region. The canal lies more or less in the center of the jawbone, at a level lying just below the roots of the teeth it holds (when they are fully erupted, thus explaining why the roots of impacted teeth tend to lie close to this nerve, see illustration above).Īt a point near its end, the Inferior Alveolar nerve gives rise to a branch called the Mental nerve. – This nerve runs the length of the lower jawbone in its Mandibular canal (a tunnel-like structure through which the nerve and associated blood vessels run). The major nerves that lie in close proximity to 2nd and 3rd molars (wisdom teeth), and thus are at risk for receiving trauma or damage during the extraction process, are: ![]() If so, the prominent nerve running through these tissues may be traumatized or even severed. In some cases, the change in sensation that’s noticed may be permanent, or only partially resolves.ī) Or the position of the tooth may be such that surrounding soft tissues must be incised and reflected back so adequate access can be gained. Outcomes – The altered state typically persists for an extended period (days, weeks, months), ultimately resolving on its own without specific treatment. The lip, facial skin, tongue and lining of the mouth are all commonly affected areas. Signs and Symptoms – As a result of the traumatic event, the person experiences a change in, or loss of, sensation in the tissues and structures that are serviced by the nerve. Less likely, it may have actually been nicked or severed. In most cases, the event involved has crushed, bruised, stretched or otherwise irritated the nerve. It involves the situation where during the patient’s procedure a nerve lying in the immediate area has received some type of insult. (This condition can also be a post-op complication associated with having root canal treatment or dental implant placement but that is not the focus of our coverage here.)Ĭauses – The onset of paresthesia is a result of nerve trauma. What is paresthesia?ĭental paresthesia is a possible postoperative complication associated with the removal of teeth (most frequently lower wisdom teeth), or in some cases receiving a dental injection.
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