An area of displacement or compression of a tissue. Degenerative alteration in a joint in which there is excessive friction...

Developmental disturbance in which a tooth does not fully erupt into occlusion. It may be a tooth bud or fully...

An unerupted or partially erupted tooth so positioned that complete eruption is unlikely. A tooth which is held against another...

A reduced response of the immune system caused deliberately, by medications or radiation, or not deliberately, by malnutrition, cancer or...

Bodily defense in reaction to an invading substance (antigen, such as virus, fungus, bacteria, or transplanted organ) that produces a...

A glycoprotein composed of “heavy” and “light” peptide chains; functions as antibody in serum and secretions. There are five major...

A process in which cells or tissues are labeled with fluorescent dye‐conjugated antibodies and examined with an ultraviolet light microscope....

A condition where elements of the immune system are defective or deficient and the individual may not be able to...

Ability or capacity to develop a normal immune response following exposure to antigen. The ability to develop an immune response...

Congenital. Nonspecific immunity present from birth. Responsible for the initial protection from infectious agents previously unseen by the host. Composed...