Using toothpaste with fluoride and drinking fluoridated water reduces tooth decay by at least 25%. Ingesting too much fluoride can lead to dental fluorosis in children and skeletal fluorosis in adults.
Since 1997, the FDA requires a poison warning on fluoridated toothpaste: “Keep out of reach of children under 6 years of age. If you accidentally swallow more than used for brushing, seek professional help or contact a poison control center immediately.”
Which statement BEST explains why we allow sodium fluoride to be used in toothpaste?