You should only buy toothpastes that contain fluoride. Any toothpaste with the ADA seal has been proven safe and effective. Tartar control . The active tartar-control ingredient, pyrophosphate, has been proven to prevent tartar, but it can't remove tartar already on the teeth. Only a professional cleaning can do that.
Some dentists say tartar-control pastes can cause mouth irritation.
Baking soda . Despite all the hype about baking soda toothpastes, there is no proof that they have any effect whatsoever. Some people enjoy the taste and feel of this ingredient, so if it motivates you brush more frequently, it's worth buying. While the ADA believes current levels of peroxide in toothpastes are safe, some dental experts say peroxide can irritate and damage gum tissue. The bubbling may make you feel like you're getting a better cleaning, but there is no scientific proof of this.