Fluoride is something that you should apply to your teeth daily. Choose a fluoride toothpaste to help regularly strengthen your teeth. Aside from your daily toothpaste, you can find fluoride in many foods and in your tap water. Applying and consuming fluoride in this way, along with regular oral hygiene, will help you prevent many oral health issues.
By the age of six months, babies should be exposed to fluoride. It can help their developing teeth come in strong and remain in good condition. Just make sure to monitor their use of toothpaste and only use a tiny drop until your child can reliably spit out their toothpaste.