Fluoride Say: floor-ide This is the fantastic mineral that can help your teeth stay strong and look super! Brush your teeth with toothpaste that contains fluoride to keep your stupendous smile. Back to Articles Related Articles Note: All information is for educational purposes only. For specific medical advice, diagnoses, and treatment, consult your doctor. © 1995-2021 KidsHealth®. All rights reserved. Images provided by The Nemours Foundation, iStock, Getty Images, Veer, Shutterstock, and Clipart.com.