Hi..
Can understand your concern..
As per your complain the symptoms that you have explained of having a
shock like pain during injection that way along the tongue too indicate that there is injury to the
lingual nerve which is caused due to pricking of the nerve during injection of local anaesthesia..
The
nerve injury can lead to prolonged
numbness in the area supplied by it and the recovery depends on the severity of the
nerve damage..
In case if there is reversible damage to the nerve the recovery takes place after some time but the time that will be taken depends on the severity and it is uncertain to tell as it can take from days to weeks to months and even years to resolve..
In case of permanent damage the recovery will not take place..
In case if you have to get injection on the same side where there is nerve injury i would not recommend you to get an anaesthetic injection on the affected side..
In case of opposite side you can proceed with the treatment..
Hope your query is solved..
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Thanks and regards..
Dr.Honey Nandwani Arora..