Endodontics · single question

What is the definition of dilaceration?

  1. Incomplete root formation
  2. Extra root formation
  3. Root shortening due to resorption
  4. Sharp bend or curve in the root of a tooth
Show answer and explanation

Correct answer: D. Sharp bend or curve in the root of a tooth

  • A. Incomplete root formation is called open apex, immature apex, or blunderbuss apex — not dilaceration.
  • B. Extra roots are called supernumerary roots or radiculomegaly — not dilaceration.
  • C. Root shortening from resorption is not dilaceration. Dilaceration specifically refers to the angular bend in the root.
  • D. Dilaceration is defined as a SHARP BEND OR ANGULATION in the root or crown of a tooth, typically resulting from trauma during tooth development that displaces the calcified portion while the rest of the tooth continues to develop in a different direction. The resulting abnormal curvature can complicate root canal treatment and extraction.

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