Definition of "odontoclastic"

External cervical resorption is the loss of dental hard tissue as a result of odontoclastic action; it usually begins on the cervical region of the root surface of the teeth.

2013 July 9, Padma Gandi, Saraswathi Disha, “Treatment of maxillary central incisor with external root resorption using mineral trioxide aggregate: 18 months follow-up”, in BMJ Case Reports‎, volume 2013