Patient: Description of condition (onset, main symptoms, hospital visited, etc.): tooth decay for many years, blocked once. But all the plaster inside fell out, and now there is only an empty shell left in the big tooth, and some time ago I ate a popsicle and cut the inside of the tooth and bled, and after that I got a ball of flesh. I ate ice cream and cut the inside of the bleeding, after which I got a pimple, and now the hollow shell of the tooth is full of growth. I’d like to ask what it is, and what’s the best way to treat it and get it over with. Jinan Military General Hospital, Department of Stomatology Xu Jian: First of all, I would like to say that this friend may be busy caring for others and neglect themselves, teeth are a good thing, we should take extra care of it. Your tooth has been nerve treatment, I do not know if you have done a perfect root canal treatment, which should take a tooth x-ray to determine. The flesh growing in your tooth is usually a granulomatous growth, which may come from two sources: first, from the residual pulp tissue at the root tip, and second, from the periodontal tissue at the root bifurcation. Whether your tooth survives or not depends on the circumstances.