◇ Drink water, milk and other liquid food only after half an hour of fluoride application, and eat solid food only after 2 hours; ◇ Do not brush or rinse your teeth on the day of fluoride application; ◇ Fluoride application cannot replace daily brushing with fluoride toothpaste; depending on your risk of caries, you need to apply fluoride regularly every 3-6 months to maintain the efficacy; this article is authorized by Dr. Zhang Zengfang, please do not reproduce without authorization Studio Pediatric Dentistry Zhang Zengfang