Hi there - unfortunately dentists don't always recognize oral cancer... There was another person here - who had braces and they kept chalking the unhealing sore in her mouth up to irritation from the braces... When she had them removed it was still there and finally she was diagnosed with OC. Not saying you have oral cancer but my ENT (not a good one obviously thought the sore under my tongue was related to irritation from a molar - not true several years later - I got an scc diagnosis, if for no other reason than peace of mind see an ENT - have a biopsy done - and find out for sure. Good luck... And take care.