X-rays show us things we can't see with the naked eye.
A Bitewing x-ray is a digital x-ray used to check for decay between the teeth and to show how well the upper and lower teeth line up. They can also show if there is any bone loss due to severe gum disease.
An OPG' or 'Panoramic' X-ray shows a broad view of the jaws, teeth, sinuses, nasal area, and temporomandibular (jaw) joints. These X-rays show problems such as impacted teeth, wisdom teeth, missing teeth, extra teeth, bone abnormalities, cysts, solid growths (tumors), infections, and fractures. These x-rays are also taken prior to people undergoing orthodontic treatment.