Christine has given you good advise, Cox!
I feel your pain I’ve been through a number of head and neck cancer treatments, and after my first radiation in 2010, IMRT, it destroyed my teeth (I had protons too in 2013 btw), but due to recurring cancer, treatments, plus ORN, osteoradionecrosis of the jaw, and others, the next 7 years or so I’ve been unable to have my teeth replaced. I’m still waiting maybe til June?
I’m not sure if any teeth have to be removed, but that can be an issue too being previously radiated, and needing HBOT like I did. You should involve your doctors, especially your radiation oncologist who has your radiation plan and knows the areas radiated and dosage.
Good luck