Oral-B Centrays are fluoride applicator trays designed with a contoured fit.

• Stable, non-flimsy foam design keeps fluoride in the tray and moisture out
• Deep distal dam and high walls improve patient comfort and inhibit overflow
• Anatomical contours force fluoride into contact with all tooth surfaces
• Closed cell foam precludes fluoride absorption into the tray
• Rounded arch and smooth ridge provide natural fit and comfort
• Hide-a-hinge folds out of the way to help prevent gag reflex