Internal root resorption is most often characterized by root-end resorption where the roots of the teeth appear shorter than normal.

Question

Quizplus · Accepted Answer

Internal root resorption is characterized by resorption of the internal root surface, not the root-end, which may initially appear normal in length. As the resorption progresses, the canal may become wider and the root canal walls may become thinner.

Internal Root Resorption Is Most Often Characterized by Root-End Resorption