Many people believe that since the first set of teeth will fall out anyway, there is no reason to see a dentist. This is absolutely not true. If a child's baby teeth are not healthy, then the second set of teeth will not come in properly and problems with enamel density and other issues will plague the child for the rest of his life.
The state of California now mandates that all children must see a dentist before entering the first grade. I hope all states adopt this law, but more importantly I hope parents start taking their children at a younger age. Imagine being a child with a toothache in school, trying to learn. I can barely tie my shoes when I have tooth pain.
Keeping kids healthy means keeping their mouth and their teeth healthy. Find a dentist that makes your child feel comfortable, so that they can begin a life of proper dental care. Like most things, starting early is the key.