Hello Marjorie,
So glad to hear of your, & others, negative biopsy results. Waiting and worrying for those results can be SO difficult.
I had recurring leukoplakia, and several biopsies, on my tongue.
The odds of leukoplakia becoming cancer are small but it does put you at greater risk than usual. It's very imprtant to remember those follow up appointments and notify the doctor of any changes. As you found, a biopsy is a good tool to give you added information.
I find it interesting that your mother had oral cancer (sorry to hear that). There does not seem to be imformation about this type of cancer running in families - although there is so much about this type of cancer that is not yet known. I think her cancer would be something the drs would want to knowon follow-up visits.
Good luck and take a good deep breath!
michelle