You are advised to see an oral surgeon to get a full evaluation of the extend of numbness.
Depending on the degree and how long the numbness has persisted, a management plan will be given.
There are three types of numbness:
1) transient - goes away by itself in a few weeks
2) persistent - cases that last more than six months
3) permanent - numbness/loss of sensation is permanent
Possible treatment options include medications, nerve stimulation and surgery.
Best regards,
Dr Ho Kok Sen