PROBLEM TO BE SOLVED: To provide a processing apparatus of dental panoramic x-ray images capable of normalizing a dimension, luminance, and form regardless of the form thereof in the dental panoramic x-ray image.MEANS FOR SOLVING THE PROBLEM: The dental image processing apparatus for processing dental panoramic x-ray images, includes at least one of: an image dimension adjusting unit for adjusting a dimension of an image captured by an imaging device for capturing an image of a dental area; an image luminance adjusting unit for adjusting the luminance of the captured image; and an image form adjusting unit for adjusting image form.SELECTED DRAWING: Figure 1