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Clinical Management of Severe External Root Resorption

並列摘要


This case demonstrates external root resorption arrest and formation of an apical barrier by conventional endodontic therapy combined with calcium hydroxide dressing and a mineral trioxide aggregate (MTA) apical plug. The upper left central incisor exhibited severe external root resorption, and a periapical radiolucent lesion received root canal treatment combined with calcium hydroxide dressing for over 4 years. The dressing was renewed every 3 months, and the coronal portion was sealed with composite resin. After detection of the apical barrier, a MTA apical plug backfilled with gutta-percha was performed and the access carity was restored with composite resin. The patient has been regularly recalled every 6 months, and no symptoms or signs hare been noted. Radiography showed the apical lesion healed and the external root resorption had been arrested after 1 year.

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