Injury to the lingual nerve is not a new finding. The lingual nerve happens to be in the path of insertion of the advancing needle when anesthesia to the area is provided. The incidence of injury varies in the literature from 1:30,000 up to 1:850,000 so it is such a rare event in the first place and its discovery occurs only hours or days after the event, such that little can be gained from the experience clinicially on how to avoid the injury in the first place other than good technique which all dental students have engraved into their brains from the word go. The fact that lingual nerve injury does occur at all, and that there is no known treatment for it once it has occurred, and worse, there is no known preventive technique to avoid it other than the techniques available to dentists today, this is a menacing situation for both the patient and practitioner. If you have any further suggestions or questions about this situation, please contact me at
drgmc@shaw.ca. I am in the process of revamping the inferior alveolar block technique with particular regard to sparing the lingual nerve. At the very least, this would reduce the incidence of lingual nerve injury from what is already a very low rate I hope. G.
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