I whole heartedly agree with the advice to seek a second opinion. I would also suggest that you see an ENT (aka otolaryngologist), instead of another oral surgeon. ENTs are trained to treat oral cancer after the oral surgeon diagnoses it. Going directly to the ENT leaves out the expense of the middle-man, not to mention the delay. While the oral surgeon is messing around in your mouth making lots of money, cancer could be spreading through your body. Your insurance is much more likely to pay for treatment from an ENT. I know this through experience.

Good luck.