How to assess and manage external cervical resorption.

External cervical resorption (ECR) is a type of pathological resorption which starts below the epithelial attachment to the root of a tooth. Various aetiologies relating to exposure of root dentine have been proposed. However, this is poorly investigated in the literature. Due to the nature of this lesion, early detection via thorough examination is essential to maintaining restorability of affected teeth. This article aims to summarise the available literature and describe management strategies for ECR, highlighting the role of clinical findings and patient-related factors in treatment planning.