Journal
INTERNATIONAL ENDODONTIC JOURNAL
Volume 49, Issue 8, Pages 802-812Publisher
WILEY
DOI: 10.1111/iej.12515
Keywords
avulsion; EndoVac; regeneration; repair; resorption; trauma
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AimTo report the clinical and radiographic treatment outcome of an immature replanted mandibular incisor with severe inflammatory external root resorption following a single-step regenerative approach. SummaryA 7-year-old female patient was referred 1week following an extrusion injury to her mandibular central incisor (tooth 31). There was a history of a 6months previous avulsion injury to the same tooth, which had been replanted after 20min of extra-oral time. On clinical examination, all teeth were asymptomatic and there was an arch wire splint placed on the mandibular incisors. Radiographic examination revealed severe inflammatory external root resorption of tooth 31. A diagnosis of necrotic pulp and asymptomatic apical periodontitis was made. Under local anaesthesia and rubber dam isolation, an access cavity was prepared. The canal was irrigated using 6% NaOCl solution delivered through the EndoVac negative pressure irrigation system (Endo Vac, Axis/SybronEndo, Coppell, TX, USA). A 17% EDTA solution was used for 5min followed by a final rinse of sterile water. The periapical tissues were probed using a K-file, and bleeding was induced. A blood clot was allowed to form filling the entire canal. A thick plug of MTA was placed in direct contact with the blood clot. The tooth was restored with composite resin. All procedures were performed in a single visit. The splint was removed 2weeks later. Recall examination after 24months revealed healthy soft tissues with normal periodontal probing and mobility. The 24months radiographic evaluation revealed healing of the severe inflammatory external root resorption and continuous root development/dentine wall thickening of the apical third. No signs of ankylosis or significant discoloration was present.
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