Internal Resorption

Definition: Resorption within the pulp chamber and/or root canal.

Radiographic Features:

Location: Any pulp chamber and/or root canal.

Edge: Well-defined, smooth outline, continuous with the pulp chamber and/or root canal.

Shape: Round to linear.

Internal: Radiolucent.

Other: Enlarges the pulp chamber and/or root canal.

Number: May be single or multiple.

(click image to enlarge)

Internal resorption

(mandibular left second premolar – # 20)

(left – with arrow) (right – without arrow)

Internal resorption

(maxillary right lateral incisor – # 7)

Internal resorption

(mandibular right central incisor – # 25)

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