Any dentists around? Abnormal cells around root canal, conflicting advice from consultant and dentist.

[Skullmerchant22]

Hi, this is my first post so will try and give all info but please ask if I miss anything.
I had a root canal around 10 years ago. Middle of upper right side jaw. Double tooth if you know what I mean.
After having it done I started to get some white patches around the tooth, both inside and outside gum.
It didnt bother me but has gotten slightly worse over the years.
My cheek where the tooth is and the cheek rests has now also got a white patch.
Last time I was at the dentist in August she took a picture and referred me to the hospital.
I saw a consultant who arranged a biopsy
The biopsy came back as severe dysplasia. He said this is the one before cancer. This has really worried me.
He said to have the root canal tooth out to see if it makes a difference. Otherwise its taking the gum and exposing the bone which is very painful.
He offered to take it out privately as the list was so long. I don't have the funds to do this and tbh didn't really feel totally comfortable with it.
I said I would go to my dentist and ask her to do it.
At the dentist she was really reluctant to do anything doubting the tooth is causing the gum problems and doesn't really want to take it out on a "hunch" from a consultant. The consultant told me what he takes out he can always put back as he is a cosmetic surgeon half the week in London. She asked to see his letter and for me to wait 4 weeks.
Yesterday I received a letter to have the tooth out at my local hospital in 2 weeks (so the list wasn't thay long, unless there was a cancellation) I really don't know what to di. I have read a lot about root canals causing problems but the scientific research always seemed to disprove it. Can anyone help with my next steps to try and get some clarity
I just don't know what to do from here. Thank you

Im just a dentist, not a consultant. I’ve never really heard of a tooth itself being the cause of a dysplasia ( root treated or not - that’s likely a red herring).

it’s a soft tissue issue. Are you a smoker/have a heavy alcohol intake? Either way, I wouldn’t mess around, and I’d just get the tooth out. You can look at alternatives for filling the space at a later date

also the consultant should do the extraction because they’ll likely be removing the lesion at the same time and sending it away for biopsy. The dentist won’t have that facility

Follow the advice of the consultant, not the dentist. He’s a cancer specialist and is telling you what to do.

Thank you both for the replies. My gut just says get it out and its gone. I will go with the hospital appointment in 2 weeks and get it out. I've been thinking since I posted thus morning. The consultant is a qualified doctor and dentist so that is reassuring too. Thanks again.

The lesion has already been biopsied - it came back as dysplastic leukoplakia

Sorry I realise that now. They’ll still need to take the rest of the lesion out, with a margin around it, and a pathologist to confirm it’s all been removed. That would be at the hospital