CEPHALOMETRIC XRAY

• The cephalometric X-ray is a unique tool, which enables the orthodontist to capture a complete radiographic image of the side of the face. X-rays in general offer the orthodontist a way to view the teeth, jawbone and soft tissues beyond what can be seen with the naked eye. Cephalometric X-rays are extraoral, meaning that no plates or film are inserted inside the mouth. Cephalometric and panoramic X-rays display the nasal and sinus passages, which are missed by intraoral bitewing X-rays.

  
  

  
  Cephalometric X-rays are usually taken with a panoramic X-ray machine. The adapted machine will have a special cephalometric film holder mounted on a mechanical arm. An X-ray film is exposed to ionizing radiation in order to provide the dentist with pictures of the entire oral structure.

  
  

   

  • Provide views of the side profile of the face.
  • Provide views of the jaw in relation to the cheekbone.
  • Provide information about “bad bites” or malocclusions.
  • Allow measurement of the teeth.
  • Identify fractures and other injuries to the teeth and jawbone.
  • Assists in orthodontic planning.

  
  

  How is it done?

  You may be asked to remove jewellery, eyeglasses, and any metal objects that may obscure the images. You will be asked to stand with your head against the machine so that it can be adjusted for your comfort. A pair of cone shaped plastic supports are then gently positioned in each ear, rather like a pair of headphones. This aligns both ears to ensure that an exact side view of the face is obtained. You will not feel any discomfort during the procedure.
  Women should always inform their dentist or oral surgeon if there is any possibility that they are pregnant. Many imaging tests are not performed during pregnancy so as not to expose the fetus to radiation. If an x-ray is necessary, precautions will be taken to minimize radiation exposure to the baby.