chin numbness

hi guys, I’m one year post op and still have quite substantial numbness on my bottom lip and chin (bottom lip is less numb). I feel a slight pins and needles feeling when I run my finger over my chin which my surgeon said was good, means that nerves are deep asleep and not dead, but it has not improved since that appointment (two months ago). I was just wondering if anyone has made let’s say an 80% recovery or full recovery from the numbness? If so, how long did it take? Also, do things such as acupuncture work to help bring back sensation? Thanks!