 The limitations apply to all imaging modalities, including plain radiography, radionuclide studies, CT scans, and magnetic resonance imaging (MRI).Through-transmission alveolar ultrasound, based on quantitative ultrasound (QUS) in combination with panoramic dental radiography (orthopantomography) is helpful in assessing changes in jawbone density.When practitioners have an up-to-date understanding of the disease process and a good medical history is combined with detailed clinical findings, the diagnosis, with the help of various imaging modalities, can be achieved earlier in most patients.