Endodontics · single question

If a tooth is ankylosed, which of the following types of resorption are most likely to have occurred?

  1. Cervical resorption
  2. Replacement resorption
  3. Inflammatory root resorption
  4. Internal resorption
Show answer and explanation

Correct answer: B. Replacement resorption

Ankylosis is the fusion of cementum and alveolar bone. Replacement resorption occurs when osteoclasts mistake dental tissue for bone, eventually fusing the two surfaces u2014 most commonly following luxation injuries. This is the mechanism behind ankylosis.

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