How can I tell if my baby is getting the right amount of fluoride and when should I start taking my baby to the dentist?

I was told that a child should start visiting the dentist 6 months after the first tooth has sprouted and subsequently every 6 months. This is what I did with my elder child but once she is in primary school, I understand that there will be yearly visits to the dentist that is attached to the school. I can make arrangements with the school's dentist should I see a need to have an extra check on my daughter's teeth. We can get a referral for treatment if there is a need to as well from the school's dentist.