The measurements with the gum probe can detect places in the dentition with greater probing depths that require additional assessment with an X-ray.
The diagnosis of periodontitis can be definitely confirmed only with the necessary X-rays. The selection of the X-rays necessary to diagnose periodontitis can be made only after the clinical examination. This can prevent excessive exposure to radiation.
In the simplest case, an X-ray finding consists of 2 images (bite wing images) and in the most extensive case, it consists of what is termed an X-ray study with up to an additional 14 X-ray images or a panoramic X-ray. The X-ray images made must show the jawbone surrounding the tooth and make it possible to estimate the severity of bone loss.
In each X-ray made on the dental practice, the dentition must be checked for caries as well as for periodontitis.