{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,9]],"date-time":"2026-01-09T15:52:25Z","timestamp":1767973945371,"version":"3.49.0"},"reference-count":37,"publisher":"Wiley","issue":"8","license":[{"start":{"date-parts":[[2024,8,7]],"date-time":"2024-08-07T00:00:00Z","timestamp":1722988800000},"content-version":"vor","delay-in-days":6,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Clinical Case Reports"],"published-print":{"date-parts":[[2024,8]]},"abstract":"<jats:sec><jats:title>Key Clinical Message<\/jats:title><jats:p>Successful management of a rare case involving both dens evaginatus and dens invaginatus in the same tooth, monitored over a 24\u2010month follow\u2010up.<\/jats:p><\/jats:sec><jats:sec><jats:title>Abstract<\/jats:title><jats:p>Dens invaginatus (DI) is a congenital dental anomaly characterized by the presence of a tooth that resembles a \u201ctooth within a tooth.\u201d Conversely, dens evaginatus (DE) is a developmental anomaly distinguished by an additional tubercle or cusp on the tooth's crown. Both DI and DE can result in pulpal and periapical diseases in the affected tooth. This article presents a case of a healthy 14\u2010year\u2010old male with recurrent swelling under the chin and a wound with pus drainage on the right side of the submental area, associated with his left mandibular lateral incisor affected by both DI and DE. Clinical and radiographic examinations revealed that the tooth was necrotic and had a chronic apical abscess. Cone beam computed tomography (CBCT) confirmed Oehlers' type III DI and a talon cusp on the lingual surface of the same tooth. The patient underwent orthograde endodontic treatment. Passive ultrasonic activation of a 5.25% NaOCl solution and a mixture of Ca(OH)<jats:sub>2<\/jats:sub> and a 2% chlorhexidine solution were utilized to effectively clean and eliminate the persistent pus discharge. After the resolution of the patient's symptoms, the apical third of the root canal and the invaginated space were filled with a plug of mineral trioxide aggregate (MTA), while the remaining root canal was filled using a sealer\u2010based obturation technique. A 24\u2010month follow\u2010up visit revealed complete bone regeneration in the previously affected periradicular tissues.<\/jats:p><\/jats:sec>","DOI":"10.1002\/ccr3.9247","type":"journal-article","created":{"date-parts":[[2024,8,8]],"date-time":"2024-08-08T04:15:30Z","timestamp":1723090530000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Dens evagination and complete invagination in the same tooth with extraoral fistula: A rare case report"],"prefix":"10.1002","volume":"12","author":[{"given":"Behnam","family":"Bolhari","sequence":"first","affiliation":[{"name":"Department of Endodontics, School of Dentistry Tehran University of Medical Sciences  Tehran Iran"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sholeh","family":"Ghabraei","sequence":"additional","affiliation":[{"name":"Department of Endodontics, School of Dentistry Tehran University of Medical Sciences  Tehran Iran"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Faranak","family":"Noori","sequence":"additional","affiliation":[{"name":"Department of Endodontics, School of Dentistry Tehran University of Medical Sciences  Tehran Iran"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0009-0009-7233-1339","authenticated-orcid":false,"given":"Nasim","family":"Hashemi","sequence":"additional","affiliation":[{"name":"Department of Endodontics, School of Dentistry Tehran University of Medical Sciences  Tehran Iran"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2024,8,7]]},"reference":[{"key":"e_1_2_14_2_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41415-021-2721-9"},{"issue":"1","key":"e_1_2_14_3_1","first-page":"73","article-title":"Demystifying dens invaginatus: suggested modification of the classification based on a comprehensive case series","volume":"7","author":"Kritika 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