It is important that a fluoride tray extend far beyond the most posterior tooth because the fluoride will flow to the back of the tray.

Question

Quizplus · Accepted Answer

The fluoride tray should fit well and cover all the teeth, including the most posterior ones, but it doesn't need to extend far beyond them. The goal is to ensure the fluoride gel or foam is in contact with the teeth, not to have the tray extend unnecessarily.

It Is Important That a Fluoride Tray Extend Far Beyond