Introduction: Like other facets of health care, dental products containing fluoride have been in existence for so long that they are rarely challenged by health professionals. Over 35,000 articles are published on various modalities and effects of fluoride, which makes fluoride well researched but often dull. It functions; let’s move on is how dentistry and drugs mostly view it. But, once the popular media, internet, or patients raise queries, it might be good to have a short reference guide at hand. Several good resources are available and listed in the appendix, but here’s a quick and dirty summary of fluoride if you will need a quick fact. Just be sure that you combine it with another controversial material – Caffeine.