What is the primary use of a fluoride tray?

The primary use of a fluoride tray is to hold fluoride during treatment. Fluoride trays are specifically designed to be filled with a fluoride gel or varnish, which is then placed in the mouth over the teeth. This allows for an even distribution of fluoride, facilitating its application directly onto the enamel. The use of a tray ensures that the fluoride remains in contact with the teeth for a prescribed period, maximizing its benefits in strengthening enamel and preventing decay. Fluoride treatments are commonly used in dental practices for both children and adults as a preventive measure against cavities.

In contrast, the other options involve different procedures or applications. Tooth whitening gels are applied differently and typically do not require a fluoride tray for application. Fitting dental crowns involves a different set of tools and processes, including impressions and adjustments that are unrelated to fluoride delivery. Cleaning orthodontic appliances generally requires specialized cleaning tools and techniques rather than a tray designed for fluoride application. Thus, the fluoride tray is specifically intended for maintaining and enhancing dental health through the application of fluoride.