In a previous post, I cited your luck in having such a proactive dentist -- you're lucky, too, that the biopsy results were done by a lab your doctor is no doubt extremely familiar with. (There are stories on thse boards of people whose biopsy slides appeared OK until they got a second or third reading by a lab at a CCC, where the pathologists who see this stuff every day picked up something suspicious.) And you're lucky that your family doctor is so supportive and helpful.
Here's hoping that luck continues!
-- Leslie