I recently got my lower left wisdom tooth extracted about one month ago. The hole has started to fill in with bone, however, recently I have noticed there is a small hole which food particles get trapped in. It's hard for me to clean around the area or floss as too much pressure causes swelling and a lot of bleeding. It has been quite some time since the surgery so I would assume that most of the bone has already been replaced. My other lower wisdom tooth has also started erupting and it is loose and sometimes painful. Is it normal for a wisdom teeth to become loose and eventually fall itself or would this cause some sort of nerve damage?