Without much information to go on, it's basically a guessing game. We guess the most likely lesion to the least. You can provide helpful information like any new medications around that time, relevant medical conditions, trauma, tobacco use, etc. I believe the most common would be traumatic fibroma. The only way to fully diagnose it would be to take a sample (biopsy) and examine it under a microscope.
I don't think it is caused by tobacco but it can chemically irritate the lesion increasing it's risk for bad results. I strongly recommend you quit tobacco use (easier said than done). I think your top dentures may be irritating and traumatizing that area so have your dentist adjust it to eliminate that effect. Lastly, have it removed (biopsy) to rule out anything sinister.
Want to reply to this thread or ask your own question?
You'll need to choose a username for the site, which only take a couple of moments. After that, you can post your question and our members will help you out.