As a Dentist, I am easily asked this question 20 times a week or more! If you look at the Journal of the American Dental Association's website, they will recommend you first bring a child to the dentist when their first tooth erupts and not later than their first birthday. This is mostly for parent education and not much is done for the child at this visit. With most of my patients who are about to become parents or have young ones at home, I teach them what they need to know for their child during their dental exam. I talk with parents about the importance of brushing their teeth as soon as they erupt, to help establish a life long routine. I used the finger brushes on my own children