A dental CT scan, also known as cone beam computed tomography (CBCT), is generally considered safe for children when used appropriately and with proper precautions. This type of scan provides detailed three-dimensional images of the teeth, jawbone, and surrounding structures, which can be very helpful for diagnosing complex dental issues, planning treatments like orthodontics or implants, and evaluating trauma or abnormalities.
The safety of dental CT scans for kids primarily hinges on the amount of radiation exposure. Compared to traditional medical CT scans, dental cone beam CT uses significantly less radiation. However, it still involves more radiation than standard dental X-rays. Because children are more sensitive to radiation due to their developing tissues and longer expected lifetime, dental professionals take extra care to minimize exposure. This is done by using low-dose protocols specifically designed for children, tailoring the scan settings to the child’s size, and only ordering scans when absolutely necessary.
Dental CT scans are not routine for every child but are reserved for cases where detailed imaging is essential for accurate diagnosis and treatment planning. For example, they might be used to assess impacted teeth, evaluate jaw growth, detect cysts or tumors, or guide complex surgical procedures. When a dental CT scan is recommended, dentists and radiologists ensure that the benefits of the scan outweigh the risks, and they use protective measures such as lead aprons or thyroid collars to shield sensitive areas.
The procedure itself is quick, painless, and non-invasive. The child usually sits or stands while the scanner rotates around their head, capturing multiple images in under a minute. Metal objects like jewelry or removable dental appliances are removed beforehand to avoid image distortion.
In summary, dental CT scans can be safely performed on children when necessary, provided that radiation doses are kept as low as possible and the scan is justified by clinical need. Dentists follow strict guidelines to protect young patients, balancing the valuable diagnostic information gained against the minimal radiation risk. Parents concerned about radiation exposure should discuss these concerns with their child’s dentist, who can explain why the scan is recommended and how safety is ensured.
