What is the primary reason for using fluoride in dental care?

Fluoride is primarily used in dental care to remineralize enamel, which is the outer protective layer of teeth. When enamel has been demineralized due to exposure to acids from bacteria in plaque, fluoride can help reverse this process. It aids in the incorporation of minerals back into the enamel structure, thereby making it more resistant to future acid attacks and reducing the likelihood of cavities.

Fluoride works at a molecular level, enhancing the crystal structure of the enamel and promoting the growth of hydroxyapatite crystals, which are more resilient than the original structure that may have become weakened over time. This remineralization process is essential for maintaining oral health and preventing tooth decay.

Fluoride’s primary role does not include teeth whitening, which is a cosmetic procedure, nor does it directly relieve tooth sensitivity, although stronger enamel can lead to less sensitivity over time. Additionally, while fluoride is beneficial for oral health, it does not have a significant direct effect on strengthening the jawbone compared to its role with enamel.