I am currently nursing an 8 month old.
There is no reason you would need to wean to have wisdom teeth removed. In general, they can remove your wisdom teeth with just a local anesthetic with nitrous oxide (laughing gas) optional, neither of which is contradicted with BFing. If you elected to have it done under a general anesthesia, even then you would not need to wean as that is not contradicted for BFing either.
Here is what Kellymom says about Wisdom teeth extraction:
A mother who has wisdom tooth surgery should not need to interrupt breastfeeding at all (except during the surgery, of course). To minimize baby's exposure (and increase mom's comfort), mom can nurse just before she goes in for the procedure. There is no need to wait on breastfeeding afterwards or to pump and dump -- mom can nurse as soon as she feels alert enough to hold baby. See Breastfeeding when mom has surgery for more information on breastfeeding and general anesthesia.
A VERY belated thank you for all of the great help you've provided on the board over the past months! Please know it is very, very appreciated!