OPG also called Orthopantomogram is a full mouth panoramic scan dental x‐ray of the lower and upper jaw. This scan gives valuable data on the position of teeth, receding bone levels‐a sign of periodontal disease for Implant surgery, jaw joint problems and sinuses for orthodontic diagnosis.
A regular X-ray machine cannot take detailed pictures of the jaw bones. An OPG machine is specially constructed so that it rotates around the jaw bones, thus giving us an extremely good idea about the structure of the jaw bones. Yes, X-rays are used, but the method is totally different.
OPG X-rays are usually asked for by the dentists, whether they are general dentists, orthodontists, oral surgeons or prosthodontists/implantologists. Because OPGs give a holistic view of the teeth and the adjacent bones, they are useful in a wide variety of conditions including infections, tumors, congenital abnormalities, pre-implant evaluation and trauma.