Root caries is a lesion located on the root surface of a tooth, usually close to or below the gingival margin. Root caries has become an important dental problem because people are living longer and keeping their teeth longer. As patients grow older, their gums recede and root surfaces are exposed, making them more susceptible to root caries. Any caries-prone patient having gingival recession can develop root caries. However, the elderly are usually more vulnerable to root caries because of several medical conditions. Many older patients use medications that reduce saliva flow and cause them to have a dry mouth. Root caries can be diagnosed by a dentist during regular dental examination. X-rays are also helpful to diagnose root caries.Treatment of root caries generally requires the placement of a restoration or crown.