Show the crowns of your molar and premolar teeth, and the height of the bone between your teeth, aiding in the diagnosis of cavities and periodontal disease.
Bite-wing X-ray highlight the crowns of the back teeth. Dentists take one or two bite-wing X-rays on each side of the mouth. Each X-ray shows the upper and lower molars (back teeth) and bicuspids (teeth in front of the molars). These X-rays are called "bite-wings" because you bite down on a wing-shaped device that holds the film in place while the X-ray is taken. These X-rays help dentists find decay between back teeth.