- small areas of decay between the teeth or below fillings
- bone damage from a tooth infection (such as an abscess) or a cyst
- bone loss due to periodontal (gum) disease
- developmental defects
- some types of tumors
- the effects of trauma
- the position of unerupted teeth in children and adults
If you change dentists, you usually can arrange to have copies of your x-ray images sent from your previous dentist to your new dentist. If you are not able to, your new dentist may take x-rays for the reasons listed above, or so he or she can compare them with future x-ray images.