I just checked the Mumsnet guide to dental health because there is no fluoride in the water in my area. Post-natal group at the doctor's advised using 1000 fluoride strength toothpaste, but when I asked my dentist, he said no - use the kid's stuff (usually about 500). However on the Mumsnet advice, it says all children over 3 should use full strength toothpaste (1500) regardless of fluoride in water or not. Can anyone clarify?