Although very rare, the incidence of nerve damage due to anesthesia via inferior alveolar block is about 1:26762 and 1:160571. In more than 85% of the cases, the symptoms resolve within about 8 weeks, with a poor prognosis after this time period.
Source: Sevels I, Clinical Abstracts, Inferior Alveolar Nerve Damage, Ontario Dentist, Nov 2014, vol 91, no 9, pg 16.
Hans Skariah, B.Sc., DMD
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