I am not so sure that the receptionist gave you good advice. I believe that most OS would give you a biopsy if it's warranted. Remember that some of the screening tests will light up a pizza burn so it's too early to freak out. How come they didn't give you a brush biopsy at the dentists office? Having a positive Velscope is not conclusive of anything except that you need a more expert look see.

If it's anything alarming you will end up at an ENT anyway so why not just skip the OS (and save a little cash) and get a referal to an ENT, preferably one with OC experience. It'll probably be close to the same price. If there is a cancer center or CCC in your area that would be the preferred approach. OC is relatively rare in the scheme of things and an expert opinion is necessary. Many of us were misdaignosed in the early phases. My dentist, who missed my Dx, told me that in 25 years they have only seen 3 OC cases.

I commend your dentist in investing in the equipment!