Rahel,

It has been suggested to me by a few doctors that chronic irritation could be the cause of my OC and OC recurrence. I�m in the 7% category with no know risk factors, and I had a recurrence this year on my tongue in the same spot as the first tumor. Although there were no rough edges on my teeth, my dentist made me a mouth guard to wear to hopefully cut down on any possible chronic irritation. I only started wearing it about a few months before it was confirmed I had a recurrence, but I suspected the recurrence a few months before it was confirmed with a biopsy.