The goal of brushing one’s teeth is to have fresh breath and prevent cavities. But the effect of toothpaste on the complex ecosystem of bacteria in our mouths — the oral microbiome — is often ...

Many toothpastes contain fluoride as it has benefits for protecting tooth health. Too much fluoride can pose risks to health, but the amount of fluoride in toothpaste is generally safe if a person ...

The most common toothpaste ingredient is fluoride, which protects against cavities. Choose a toothpaste with calcium carbonate or hydrogen peroxide if you want to whiten your teeth. Avoid toothpaste ...