The type of toothpaste you buy will depend on what you are asking it to do. If you have sensitive teeth then you likely need to buy a sensitivity toothpaste such as Sensodyne. If you have bleeding gums then Parodontax may help. There is Flouride free toothpaste to train young kids who can’t properly swish and spit yet so they don’t ingest it. There is even Rx toothpaste, Prevident, with extra fluoride to help with people who are cavity prone.