A 57-year-old female asked:
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how long does it take for numbness in chin and lip to go away after oral surgery, removal of cyst on lower jaw bone?

3 doctor answers
Dr. Bennett Machanic
52 years experience Neurology
Nerve regrowth: If the coverings over a nerve, myelin, alone is affected, perhaps about 4 weeks, but if more extensive axonal involvement, regrowth at speed of fingernail lengthening, 0.1 mm daily.
Answered on Jul 23, 2013
Dr. Kirk Yen
Dr. Kirk Yen answered
38 years experience Oral and Maxillofacial Surgery
Type of injury: I am assuming injury is with the nerve of the lower jaw. If cyst is large & close to nerve, injury can occur. Less serious injury with the nerve still intact may take few weeks to a couple of months. If the nerve is physically injured it may take months. Evaluation with the dentist that did the surgery should be done now to obtain best resolution to your persistent numbness.
Answered on Jul 28, 2013
Dr. Reed Day
Dr. Reed Day answered
Specializes in Oral and Maxillofacial Surgery
Cyst: It all depends on the depth of the cyst and it's proximity to the nerve. As long as the nerve was not severed then it may take 4-6 months. If not then see a special oral surgeon who does nerve repair.
Answered on Jul 7, 2018
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