This is the most basic function of toothpaste, and it is the main reason you will see fluoride in your toothpaste. It comes in a few different forms, such as stannous fluoride and sodium fluoride.

Fluoride-free toothpaste doesn’t contain the mineral ... The flavor doesn’t matter, but if you choose cinnamon, be aware it can be irritating to gums and other soft tissues for some people.

“These lawsuits are not about whether fluoride toothpaste should be available to those who want it,” Michael Connett, a partner at the law firm Siri & Glimstad representing the ...