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Dentsply Sirona Education Prize: – Copy
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Dentsply Sirona Education Prize: Dr Ove PetersAlsh - Teachers of Endodontology
Adventure to discover the anatomic, radiologic and histological complexity of external cervical resorption Abstract External cervical resorption (ECR) is an extremely complex periodontal and endodontic pathology. Diagnosis and differential diagnosis with internal resorption or root caries is confusing and the periapical radiographs have several detection limitations. Since the introduction of high resolution Cone Beam CT (CBCT) the prevalence seems to increase but this is due to improved detection power. Also the etiological multifactorial triggers are becoming more evident. Most common causes are: non-vital walking bleach technique, collateral damage induced by orthodontic treatment, cementum damage induced by extraction of neighbouring teeth, cementum abfraction caused by parafunction like bruxing or nail biting, cementum lesions related to eruption collision, chronic irritation caused by cracks or invagination grooves, periodontal pathology and surgery, trauma and even viral infections. ECR-teeth often keep their vitality for a long time even in the progressed stages of the Heithersay classification. Treatment options are variable depending on the resorption stage and the understanding of the pathology by the practitioner and his ability to approach the lesion in a minimal invasive microscopic way. The pathology outcome and the treatment success are related to the ability to circumscribe the