There already is a prescription toothpaste that your dentist (or MD) can prescribe for you. The brand name is Prevident 5000 and it is a highly fluoridated toothpaste for people who are prone to tooth decay.

It typically costs between $20-30 for a small tube and it is not usually covered by insurance.

http://www.colgateprofessional.com/a...ent5KPlus.cvsp

Keba