This is my first visit ever to this section of the forum. Anyway, I just had my third molar (#1) taken out and in the process, my sinus was also punctured. My dentist told me that I had my sinus positioned lower than normal people, and the root tip was attached to it. Hence when he pulled the tooth out, the tip damaged the sinus a little. That day, I could totally feel air going in and out of mouth to the nose through that area. It was blocked naturally the next day though. Does this happen alot? And one more thing, my dentist told me to don't even think about doing any kind of physical activities for the next 4 to 5 weeks. I played all sorts of sports, and this was like a dead sentence to me. What sure I do? Thanks for all your replies in advance.