6 years+. Use pea-sized amount of toothpaste on Kidz Toothbrush. Brush teeth gently on all sides twice daily, angling bristles towards gum-line. Brush tongue to dislodge bacteria. Replace when bristles start to look worn or spread, typically 4 to 6 months. Tips: Ensure brushing for 2 minutes. Try singing songs or play a game. Don't forget to floss!