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How often should a child have dental radiographs (X-rays) taken?

Since every child is unique, the need for dental X-rays varies from child to child. They are only taken when they are likely to yield valuable information that a visual examination alone cannot.  In general, children need dental x-rays more often than adults due to the growing and changing dynamics in the mouth.  They are more suceptible than adults to tooth decay.  For children with a high risk of tooth decay, the American Academy of Pediatric Dentistry recommends X-ray examinations every six months to detect cavities developing between the teeth.  Children with low or moderat risk of tooth decay require X-rays less frequently.

Why should X-rays be exposed if my child has never had a cavity?

Dental radiographs detect much more than cavities.  For example, they may be needed to survey erupting teeth & manage growth and development, to diagnose bone dieseases, to evaluate the results of a dental injury, or to plan orthodontic treatment.  X-rays allow dentists to diagnose and treat conditions that cannot be detected during a visual examination.  If dental problems are found and treated early, generally the treatment is more comfortable and affordabe.