root resorption — resorption in which cementum or dentin is lost from the root of a tooth owing to cementoclastic or osteoclastic activity in conditions such as trauma of occlusion or neoplasms … Medical dictionary
Resorption — can refer to: * Bone resorption * Root resorption … Wikipedia
Resorption — The process of losing substance. Bone, when it is remodeled (reshaped), undergoes both new formation and resorption. The cell responsible for the resorption of bone is called an osteoclast. * * * 1. The act of resorbing. 2. A loss of substance by … Medical dictionary
root perforation — perforation of the root of a tooth, occurring either iatrogenically during treatment or pathologically from internal resorption … Medical dictionary
tooth resorption external — resorption of calcified dental tissue, beginning on the external surface of the root and extending to the cementum, dentin, and eventually into the root canal. See also internal tooth r. (def. 1) … Medical dictionary
Condylar resorption — An anatomical diagram of the condyloid process. Condylar resorption, also called idiopathic condylar resorption, ICR, and condylysis, is a Temporomandibular joint disorder in which one or both of the mandibular condyles are broken down in a bone… … Wikipedia
Internal resorption — is an unusual condition of a tooth when the dentin and pulpal walls begin to resorb centrally within the root canal. The first evidence of the lesion may be the appearance of a pink hued area on the crown of the tooth; this condition is referred… … Wikipedia
Crown-to-root ratio — This X ray film reveals a poor crown to root ratio for tooth #21 (right), the lower left first premolar. The tooth exhibits 50% bone loss, adding roughly 5 7 mm to the clinical crown of what is actually anatomical root. The fulcrum, existing… … Wikipedia
External resorption — is a condition of a tooth where the root surface is lost. This can be caused by chronic inflammation, cysts, tumors, trauma, reimplantation of a tooth, or sometimes the cause is unknown. See also *Internal resorptionReferences*Kahn, Michael A.… … Wikipedia
retained root — 1. a tooth root, or part of a root, remaining in the soft tissue or in bone following trauma, extensive tooth decay, or incomplete extraction. 2. a tooth root intentionally retained to prevent resorption of the alveolar process … Medical dictionary
