Fluoride applied directly to your teeth can be appropriate, as it will only affect your teeth and not the rest of your body (as long as you don't swallow it, obviously).
Fluoride applied directly to your teeth can be appropriate, as it will only affect your teeth and not the rest of your body (as long as you don't swallow it, obviously).
Fluoride applied directly to your teeth can be appropriate, as it will only affect your teeth and not the rest of your body (as long as you don't swallow it, obviously).