system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: does it matter what type of toothpaste you use? And if it does how exactly do they protect against enamel erosion, sensitivity or gum disease?
gpt
As long as it contains flouride, any of the major brands is fine. Extra words like cavity prevention are mostly branding.

Some contain extra chemicals to whiten your teeth. This is purely cosmetic.

Some help with sensitive teeth, which really does help if you have those.

If you don't have sensitive teeth or care about extra whitening, just pick a flavor.