Which criteria should one look at when purchasing an electric toothbrush?
Ways to reverse a cavity before it goes rotten?
What does fluoride toothpaste do to the dentin on the teeth?
Getting rid of white spots on front teeth
Is dental floss really effective? According to studies, it is not
Are there any risks about switching to a non-fluoride toothpaste?
Is it beneficial to keep using fluorised toothpaste after prolonged use?
As far as I understand, fluoride helps in hardening the enamel of our teeth by replacing the calcium element in hydroxyapatite to convert it in the stronger fluorapatite, like explained here. Wether that's worth other potential risks of using fluor is debatable, but let's keep that aside. I'm curious if it is still beneficial to keep using fluorised toothpaste if you already did so for like 10 years. I suppose all hydroxyapatite is long converted into fluorapatite already after so much brushing. Why would it still be recommendable to keep using it?