What is Resorption?
Resorption is a physiologic or pathologic condition associated with loss of bone, cementum and/or dentin. There are different types of resorption such as external, internal, inflammatory, replacement and surface. Its etiology is unknown, even though it commonly is associated with trauma. EXTERNAL: a pathologic process that initiates from the periodontium affecting the external surface of the tooth. Can be further classified by location: cervical, lateral or apical. Or type: surface, inflammatory or replacement. INTERNAL: a pathologic condition that initiates within the pulp causing loss of dentin and sometimes, cementum. It may or may not perforate the external root surface. INFLAMMATORY: a pathologic loss of bone, cementum and dentin in the root. REPLACEMENT: Also known as ankylosis, it is a pathologic loss of cementum, dentin and periodontal ligament with simultaneous ingrowth and fusion of bone to the tooth surface. A loss of the physiologic mobility is common. SURFACE: a physiologi
