Sometimes we as dentist need to see beyond the extent of your teeth and see what is behind cause of pain and the true extent of the problem.
Here comes the need for the full mouth x-rays that is what we call OPG (orthopantomogram).
It helps in diagnosing the disease beyond the limited extent of small x-rays and hereby treating the root cause of the problem.
It helps in seeing the upper and lower jaws, the temporomandibular joints, detecting the number of teeth and hidden cavities and the bone supporting the tooth.