I cannot stress it strong enough to get yourself to floss every night. You only need to do it once before bed as it takes 24 hours for the plaque to build up.

My dentist said if everyone flossed he'd be either out of a job or working part time.

Just stay on top of it. Use the trays after you floss and brush. You may lose a couple but fight very hard to keep them all.

And BTW, your dentist needs to be familiar with radiation and teeth. The cavities grow on the bottom gum line and a lot of dentists don't want to try to fill them there as it's hard to do. Make a pact with your dentist that together you won't lose any.

Good luck,

Tom