Despite, perhaps never having been to the dentist before, many children will cry as soon as they see the dental chair. It’s a good thing that there are many dentists who regularly encounter such children and are experts in calming them down. So, as a parent don't worry about a nervous child as most dentists will let parents stay in the room which is sure to ease any of your child's fears.
Before the visit, explain to your child what is going to happen and praise him or her for being so brave. Make sure that your child is well rested and isn't hungry as this way your child is less likely to be cranky or tired.