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External cervical resorption: A three-dimensional classification

Research output: Contribution to journalArticlepeer-review

Original languageEnglish
JournalJOURNAL OF ENDODONTICS
Early online date13 Sep 2017
DOIs
Accepted/In press23 Jul 2017
E-pub ahead of print13 Sep 2017

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Abstract

This paper describes a novel 3-dimensional classification for external cervical resorption (ECR). The European Society of Endodontology and American Association of Endodontists & American Academy of Oral & Maxillofacial Radiology position statements advise that CBCT should be considered for the assessment and/or management of root resorption if it appears to be clinically amenable to treatment following clinical and conventional radiographic examination. The new classification takes into account the ECR lesion height (1: At CEJ level or coronal to the bone crest (supracrestal), 2: Extends into the coronal-third of the root and apical to the bone crest (subcrestal), 3: Extends into the mid-third of the root, 4: Extends into the apical-third of the root), circumferential spread (A: ≤ 90° B: ≤180° C: ≤270° D: >270° ) and proximity to the root canal (d: Lesion confined to dentine, p: Probable pulpal involvement), thus classifying ECR in 3-dimensions. At present there is no classification to accurately describe ECR. A novel and clinically relevant 3 dimensional classification should allow effective and accurate communication of ECR lesions between colleagues. It will also allow the effect of the nature of ECR on the outcome of treatment to be assessed objectively.

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