What is a primary purpose of fluoride treatment in dental hygiene?

Fluoride treatment is primarily aimed at strengthening enamel and preventing caries, which are the result of bacterial acid production leading to tooth decay. Fluoride works by enhancing the remineralization process of teeth, making the enamel more resistant to acid attacks from plaque bacteria. The incorporation of fluoride into the tooth structure helps to rebuild and fortify the enamel, thereby reducing the risk of cavities.

Additionally, fluoride plays a role in disrupting the metabolic activity of certain bacteria in dental plaque, which contributes to a decrease in the production of acids that can weaken enamel. This is particularly beneficial in populations at higher risk for caries, such as children and individuals with special needs.

While other options mention aspects of dental health, such as whitening, sensitivity reduction, or plaque elimination, they do not capture the primary and well-supported objective of fluoride treatments in dental hygiene, which is fundamentally about strengthening enamel and preventing tooth decay.