Final answer:
Before topical fluoride gel is applied, the teeth must be dried. Drying the teeth allows the gel to adhere properly and maximize its effectiveness.
Step-by-step explanation:
Before topical fluoride gel is applied, the teeth must be dried. Drying the teeth allows the gel to adhere properly and maximize its effectiveness. Fluoride treatment is important for preventing tooth decay as it strengthens the enamel and protects against acid produced by oral bacteria.