Fluoride: myths and facts

nat rosasco • December 20, 2022
A dentist is examining a patient 's teeth in a dental chair.

In the mid-1940s, scientists started finding concrete evidence which linked fluoride to healthy teeth and low levels of tooth decay. Since then, numerous clinical studies and research have been conducted which prove the benefits of fluoride on oral and overall health. 



However, despite the availability of a plethora of evidence, there are many misconceptions and fallacies surrounding fluoride. In this blog, we will debunk some of the most common myths surrounding fluoride. 


Myth – Fluoride does not belong in drinking water

Truth – Fluoride is a naturally occurring mineral that is already found in minute quantities in soil and water. However, its level is not optimum to provide desired benefits. Therefore, state-run programs take the initiative to add fluoride and achieve a concentration of 0.7 ppm. This is enough to provide the desired effect, which is making teeth strong and resistant to dental decay. 


Myth – Fluoridated water leads to fluorosis, which makes the teeth brown and brittle. 

Truth – Fluorosis occurs only when a person ingests high amounts of fluoride and does not occur at the recommended 0.7 ppm concentration. Fluorosis is rare in the states and, even if found, is typically mild. 


Myth – Fluoride is a medication that is forced on the community 

Truth – Fluoride is not a medication. It is a mineral that is already found naturally. 


Myth – Fluoride is dangerous for children.

Truth – It is not dangerous to children when used as intended. Drinking fluoride water, using fluoridated toothpaste, and opting for preventive fluoride treatments strengthen the teeth and prevents tooth decay and loss. 


Myth – Adding fluoride to water is expensive for the general population 

Truth – Fluoride is the least expensive way to prevent dental decay and protect ourselves from dental ailments down the line. Dental treatments are costly and invasive. Prevention is always better and inexpensive than a later cure. This is why so many countries around the world have started adding fluoride is drinking water sources. 


Myth – Fluoride causes cancer

Truth – Countless studies have shown that fluoride is not a carcinogen, and its addition to drinking water is not dangerous. Fluoride neither causes cancer nor increases the risk of cancer and other severe health disorders. 


Myth – Fluoride has no role in preventing tooth decay


Truth – In the early 20th century, scientists observed that communities that resided along areas of high fluoride content in the water had fewer dental cavities in comparison to people who resided in areas of low fluoride concentration. This prompted them to study and research the role of fluoride in dental health. It was found that fluoride interacts with the hydroxyapatite crystals of the teeth and forms fluorapatite. Fluorapatite is what makes the teeth stronger and resistant to dental cavities. Fluoride treatments can also be used to reverse early signs of dental cavities. 


We hope this article provided you with the required insight into the world of fluoride. Dental decay is one of the most rampant dental diseases in the states, and its prevention is essential for overall well-being. 


If you have any more questions or would like to schedule an appointment with us at Goduco Smiles, Vernon Hills, IL, please reach out to us. Our team of excellent dental professionals is here to assist you and your family with a healthy and glistening smile. 

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