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Rapidly progressing extracanal invasive resorption
E S Mock1, G K Wolff, D A Galvan
1Hospital Dental Clinic, Fort Leonard Wood, Missouri, USA.
General Dentistry
|January 1, 1997
Abstract:
Frank and Bakland coined the term "Extracanal invasive resorption" (EIR) to identify a resorptive entity that has been variously classified. This external resorption originates in the cementum adjacent to the periodontal ligament. The lesion is believed to be a response to injury and irritation of the periodontal ligament, or to pressure from ectopic eruption, orthodontic pressure, intracoronal bleaching, periodontal treatment, or an unknown idiopathic cause.