How do we know if there is decay (a cavity) between the teeth when it’s not visible to the naked eye? X-rays are one of the most valuable tools in the diagnostic process. We cannot “see” cavities between teeth without the help of digital x-rays. During your cleaning and check-up visits, we may take “bitewing radiographs”, “periapical radiographs”, or a “full mouth series”, depending on your specific needs. These images allow us to visualize between the teeth and around the roots of the teeth to check for cavities, bone loss, tartar build up, and pathology.