Internal resorption is an inflammatory condition that originates in the pulp of the tooth and leads to the loss of tooth structure, specifically the dentin and the cementum. While the exact process that triggers this is not completely understood, it is theorized that it begins as the result of pulp distress occurring during preparation for a restoration. This distress is not predictable as it depends upon the natural sensitivity of each individual. The condition is usually painless and has no overt symptoms, but it can be readily diagnosed from a check up radiograph. However, the compromised tooth can sometimes appear pink due to an enlarged pulp. Radiographically internal resorption appears as a semicircular radiolucent area adjacent to the pulp. Treatment will consist of root canal therapy followed by a permanent restoration such as a crown and post.