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Dental X-ray machines are used to see things not visible to the naked eye. Digital radiographs are becoming more popular, allowing for easier archiving and comparison of images. Three types of dental X-ray units are used: extraoral, intraoral, and panoramic. Each has its own purpose.
An X-ray machine is a piece of equipment commonly used in a dental office. The purpose of these machines is to see things that are not visible only with visual examination of the mouth. Dentists can use the images produced to see the teeth, bones and soft tissue around them. Finding cavities, examining tooth roots, observing tooth development, and checking the health of underlying bones are all functions performed by various dental X-ray machines.
Digital radiographs are becoming a popular form of dental X-ray machines. They use a pad or electronic sensor instead of a piece of x-ray film. This type of dental x-ray transmits images directly to a computer. Images can be archived, printed and compared using the software to decide if any changes have occurred over time. A technician can view two different images or multiple images on one screen. Digital systems even allow dental problems to be detected earlier than other methods and types of dental X-ray equipment.
If a digital radiography is not available, three different types of dental X-ray units are used. Extraoral imaging takes images from outside the mouth, intraoral imaging involves taking images from inside the oral structure, and panoramic x-rays involve a machine that takes images around the entire head. These machines are used for different purposes.
Extraoral radiography is useful for checking impacted teeth, gathering information about oral growth and development, seeing how the teeth are located in relation to the jaws, and visualizing the facial bones. The images focus more on the jaw or skull. These images are not always detailed enough to detect cavities.
Intraoral radiography is the most common type of dental radiography and includes bite-wing radiographs, in which the film is contained in a wing-shaped device. Periapical radiographs are very similar, but show the full length of one or two teeth. For an assessment of tooth development and placement, an occlusion radiograph is used to examine all teeth in the upper or lower jaw.
A dental panoramic X-ray machine is a large machine that has an emitter that rotates behind the head. A film moves along the opposite side in front of the face. The result is an image of each tooth on both jaws, providing a complete assessment of tooth structure and configuration in one image.
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