The frequency of dental x-rays will depend on the health of your child’s mouth. We generally take the first set of x-rays by the age of three. This initial set is limited to the front upper and lower teeth to help your child become familiar with the process. Once the baby teeth in the back are able to touch one another, we recommend a full series of x-rays to detect any cavities. We also recommend another set around the age of six to ensure that the teeth are properly aligned. If your child is at a high risk of developing dental problems, we may recommend more frequent x-rays.