Many diseases of the teeth and surrounding tissues cannot be seen when your dentist examines your mouth. An X-Ray may reveal: Small areas of decay between the teeth Infections in the bone Periodontal (gum) disease Abscesses or cysts Developmental abnormalities Some types of tumors Finding and treating dental problems at an early stage can save time, money and often unnecessary discomfort. There are many benefits to having dental radiographs taken. Any additional questions or concerns should be discussed with your dentist.