What is the definition of dilaceration?

Dilaceration is defined as an abrupt bend or curve in the root or, less commonly, the crown of a tooth. It results from trauma during tooth development that displaces the calcified portion of the tooth relative to the developing soft tissue. The original option stated 'sharp bend of the root,' which is the core concept. Dilaceration can affect any part of the tooth (crown or root), not just the root; the question text has been refined accordingly.