eburnation

A change in exposed subchondral bone in degenerative joint disease in which it is converted into a dense substance with a smooth surface like ivory. SYN: bone sclerosis. [L. eburneus, of ivory]

- e. of dentin a condition observed in arrested dental caries wherein decalcified dentin is burnished and takes on a polished, often brown-stained appearance.

* * *

eb·ur·na·tion .eb-ər-'nā-shən, .ē-bər- n a diseased condition in which bone or cartilage is eburnated

* * *

n.

the wearing down of the cartilage at the articulating surface of a bone, exposing the underlying bone and leading to bone sclerosis, in which the bone's surface becomes dense and smooth like ivory. This is an end result of osteoarthritis.

* * *

ebur·na·tion (e″bər-naґshən) [L. ebur ivory] 1. the conversion of a bone into an ivory-like mass. In osteoarthritis, the thinning and loss of the articular cartilage resulting in exposure of the subchondral bone, which becomes denser and the surface of which becomes worn and polished. 2. e. of dentin.