‘I broke a molar’: Man says he got a throat ulcer after using Hello Activated Charcoal Toothpaste. He’s not alone

For decades, people have been skeptical of fluoride. That’s despite the fact that the United States is pretty fluoride-obsessed. So much so that, throughout the country, fluoride is added to drinking water in order to improve oral health.

This, historically, has worked. As noted by NBC, studies have consistently shown that fluoridated water reduces tooth decay in a population by around 25 percent.

However, some take issue with fluoride, noting that in high enough doses fluoride can be toxic.