Angelia,
Oral cancer can be extremely aggressive and you really need to get a second opinion from a Comprehensive Cancer Center.

The National Cancer Institute (NCI) has designated accredited CCC's in most states and these provide a multidisciplinary team approach to diagnosis and treatment: http://cancercenters.cancer.gov/

The American College of Surgeons Commission on Cancer (CoC) has accredited CCC's in many major hospitals and clinics which also follow a multidisciplinary team approach: http://www.cancer.org/asp/search/ftc/ftc_global.asp

For Oral Cancer, the odds are that a NCI designated center is better equipped to diagnose and treat the cancer, but in some metro areas the CoC accredited mega HMO/Hospital based CCC's are equally capable - often more so.

In either case you need to find an accredited CCC with a team that routinely deals with a significant number or Oral Cancer patients.