Some problems, such as decay between teeth or issues beneath the gumline, are hard to see by looking alone. Dental X-rays give your dentist a clearer picture.
Digital X-rays are captured with a small sensor and appear on screen straight away, so your dentist can show you the image and explain what it means.
Whether you need an X-ray depends on your individual situation. If you have questions or are pregnant, tell your dentist before your appointment so they can advise you.