I keep reading people suggesting not to allow the oral surgeon to do a brush biopsy and insist on a surgical biopsy. I understand the surgical biopsy is the "gold standard" but isn't the brush biopsy helpful sometimes depending on the situation?

I have an appointment on Tues and I know they sometimes do brush biopsies. I don't know why they do that sometimes and not others.

From what I read on the general oral cancer foundation website, it sounds like the brush biopsy is reliable to detect abnormal cells, which would then lead to a surgical biopsy. I am just confused by the information. Thanks.