Please ask about taking antibiotics before going forward with this if you have to have it. I had a molar extracted at Christmastime of 2006 due to a failed root canal. When the endodontist pulled it, it opened up a hole into my sinus cavity. Three months after the surgery to repair this, I had pericarditis. I am still suffering from the after-effects of that. I would just be real cautious and ask if antibiotics are needed. I wish I had.