Orthopantomogram (OPG)
What is an OPG?
X-rays use radiation to take pictures of bones and other parts inside the body. An OPG is a panoramic X-ray of the upper and lower jaws, including the teeth. The OPG unit is specifically designed to rotate around the patient’s head during the scan. An OPG will take approximately 20 seconds.
An OPG can be used to look for
• Fractures
• Dislocated jaw
• Infection
• Dentition (teeth)
It can also be used for surgical planning.
Benefits of an OPG
- Painless, fast and easy Preparation
- No special preparation is required.
- Leave all jewellery and valuables at home.
- You may be asked to remove any metal objects.
- Important to tell your doctor before the OPG
- If you are or may be pregnant.
Lateral Cephalogram
Another useful assessment tool in dental imaging is the lateral cephalogram. This is an x-ray which generates a side view of the head that can provide important information about the teeth and jaw. The lateral cephalogram shows facial structure, bone, and soft tissue. Your radiologist or dental practitioner can use these images to study the relation of your teeth to your jaw, assess problems in alignment or growth patterns, and prepare treatment.
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The lateral cephalogram is best for observing jaw alignment. If you have an overbite or underbite, for example, these images will provide better detail and allow your practitioner to develop the best approach for your needs. This x-ray is commonly used in children to predict growth patterns in the teeth and jaws. The lateral cephalogram is used with adults as well, to study changes made from treatment or track other issues.
If you are working with an orthodontist, the lateral cephalogram may be ordered alongside the OPG. This x-ray is useful in tracking the progress of treatment.
What to Expect With a Lateral Cephalogram
An appointment for a lateral ceph should take approximately 15-20 minutes. Often, you’ll receive this scan in conjunction with the OPG. You will need to remove jewellery and metallics from your head and neck. For your lateral ceph you’ll be asked to keep your teeth together, and may lean your forehead against a steadying implement. The x-ray itself will be completed in only a few seconds