Dens invaginatus in a mandibular lateral incisor.

A rare case of dens invaginatus involving a non-carious mandibular lateral incisor with periapical periodontitis is reported. Invaginated teeth present technical difficulties in their clinical management because of their abnormal anatomy. In the present case, non-surgical root canal therapy was chosen. A one-year follow-up clinical and radiographic examination showed a non-symptomatic tooth with osseous healing proceeding.

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