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Nerve injuries occur in 3.7% of the patients after the mandibular setback surgery. [49] Cutting and repositioning of the mandible in the surgery can potentially damage nerves in the mandible that is responsible for sensation and movement. Specifically, the inferior alveolar nerve are the commonly affected nerve in the surgery. [50]
Damage to the marginal mandibular branch of the facial nerve may cause paralysis of the depressor anguli oris muscle. [1] This may contribute to an asymmetrical smile. [1] This may be corrected by resecting (cutting and removing) the depressor labii inferioris muscle, which has a more significant impact on smiling. [1]
Thus the facial artery can be used as an important landmark in locating the marginal mandibular nerve during surgical procedures. [2] Damage can cause paralysis of the three muscles it supplies, which can cause an asymmetrical smile due to lack of contraction of the depressor labii inferioris muscle . [ 3 ]
Inferior alveolar nerve is the most important anatomic structure during mandible reduction surgery and great care should be taken to avoid injury to this nerve. [6] Potential complications include injury to the inferior alveolar nerve which provides permanent numbness and damage to the lower lip and even death.
Over time, the amount of mouth opening possible without pain can be gradually increased. A baseline record of the distance at the start of physical therapy (e.g. the number of fingers that can be placed vertically between the upper and lower incisors), can chart any improvement over time. [49]
An injection blocks sensation in the inferior alveolar nerve, which runs from the angle of the mandible down the medial aspect of the mandible, innervating the mandibular teeth, lower lip, chin, and parts of the tongue, which is effective for dental work in the mandibular arch. To anesthetize this nerve, the needle is inserted somewhat ...
Existing treatments aim to suppress the immune system to prevent further damage to nerve cells. A new study has developed a treatment that can help regenerate myelin with the potential to stop and ...
The mandibular nerve immediately passes between tensor veli palatini, which is medial, and lateral pterygoid, which is lateral, and gives off a meningeal branch (nervus spinosus) and the nerve to medial pterygoid from its medial side. The nerve then divides into a small anterior division and a large posterior division.