###Human: How much fluoride in toothpaste is good for adults? ###Assistant: Hello. Fluoride content can be around 1000 to 1200 ppm which is more than enough for the prevention of cavities. No need to go higher than that. More important is the proper brushing technique. Go for up-down or circular brushing technique without too much pressure onto the teeth to prevent wearing away of enamel in the long term due to abrasion.