First of all, the "recommended" amount of fluoride is VERY minimal. Think the size of a pea, cut in half. That is the recommended amount of fluoride toothpaste to be used. Most people are using ten times that amount, twice a day. Plus (another thing to avoid) public drinking water is fluorinated. Even by the official "recommended" amount, people are being WAY over fluorinated.
Now to the effects that are not advertised by dentists and public health workers. Dental Fluorosis is becoming extremely common. Teethe become over fluorinated, the enamel is weakened, and the teethe become discolored (so instead of benefiting teethe it actually harms them). It has been shown to damage bones and brain, which leads to a lower IQ. What got me off of fluoride, years ago, was learning that Hilter had fluoride added to the drinking water in the concentration camps, which made the people apathetic and compliant.In addition to harming our bodies and minds, it is also extremely harmful to the environment. Most of the fluorinated water goes right down the drain and back into the environment wreaking havoc. Plus, the United States is the only developed country to add fluoride to its drinking supply, if it is so great why is it not being consumed world wide?
Instead of just going with the main stream, or taking my word for it, take a minute to look into it. Below is a link to a short three minute video that will get you started.