Using a fluoride containing toothpaste will save you hundreds of pounds in dental bills over your life time.
Or - Fluoride in toothpaste is the single most successful preventive health measure in the history of human health.
Or - if you don't use a fluoride toothpaste you are nuts.
In fact it is pretty difficult to find a main brand toothpaste that doesn't contain fluoride, it is that established as an essential ingredient, so you have to go out of your way to find a fluoride-free paste. But some people do. And those people have more than twice the tooth decay of those that use fluoride toothpaste.
Fluoride is a substance that can occur naturally in spring water, is scientifically proven to prevent tooth decay (beyond any doubt) and - in the quantity that is in toothpaste - is perfectly safe.
There are some herbal toothpastes on the market, don't use them unless they contain fluoride, or you rather fancy having black gaping holes in your teeth.
See Tips For Saving Money (click on icon above). Brushing with fluoride toothpaste is the most important dental health measure, mouthwashes can make your breath feel fresh but they are expensive and beer is probably as effective at removing plaque.