The Prevident is definitely a good idea as the teeth take a hit during radiation and the toothpaste helps with enamel loss.

Are you getting radiation at Princess Margaret Hospital? If so, ask the radiation oncologist to refer you to the dentistry department. They will probably send you anyway prior to radiation to have your teeth checked. It is right next to the Head and Neck Clinic and it’s easy to get an appointment there. You can ask all the dental questions you want there. The care (except for fillings and “regular” dental work) is covered by OHIP. They do after radiation follow-up too. So, you’ll be in good hands. The PMH mouthwash is what on this forum we call the magic mouthwash. It numbs the mouth so you can eat during radiation treatment. It’s not a mouthwash for dental hygiene. Have you had fluoride trays made? I see that you’re using a toothbrush to apply the fluoride. The trays are perhaps easier. It is like a mouth guard that you put the fluoride in and put on your teeth for something like ten minutes. You can ask your dentist to get it made for you and to order the fluoride for you.

If you’re coming to Toronto from Thunder Bay for treatment, I suppose someone has already mentioned the Lodge to you? You can stay there for the duration. If you have prefer a hotel, then the hotel near the hospital have “hospital rates.” It’s all on the Princess Margaret Hospital website.