{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,17]],"date-time":"2026-10-17T19:40:27Z","timestamp":1792266027166,"version":"4.4.0"},"reference-count":53,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2017,5,29]],"date-time":"2017-05-29T00:00:00Z","timestamp":1496016000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Int Endodontic J"],"published-print":{"date-parts":[[2018,1]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Aim<\/jats:title><jats:p>To present the regenerative endodontic treatment procedure of a perforated internal root resorption case and its clinical and radiographic findings after 2\u00a0years.<\/jats:p><\/jats:sec><jats:sec><jats:title>Summary<\/jats:title><jats:p>A 14\u2010year\u2010old female patient was referred complaining of moderate pain associated with her maxillary left lateral incisor. After radiographic examination, a perforated internal resorption lesion in the middle third of tooth 22 was detected. Under local anaesthesia and rubber dam isolation, an access cavity was prepared and the root canal was shaped using K\u2010files under copious irrigation with 1% Na<jats:styled-content style=\"fixed-case\">OC<\/jats:styled-content>l, 17% <jats:styled-content style=\"fixed-case\">EDTA<\/jats:styled-content> and distilled water. At the end of the first and second appointments, calcium hydroxide (<jats:styled-content style=\"fixed-case\">CH<\/jats:styled-content>) paste was placed in the root canal using a lentulo. After 3\u00a0months, the <jats:styled-content style=\"fixed-case\">CH<\/jats:styled-content> paste was removed using 1% Na<jats:styled-content style=\"fixed-case\">OC<\/jats:styled-content>l and 17% <jats:styled-content style=\"fixed-case\">EDTA<\/jats:styled-content> solutions and bleeding in the root canal was achieved by placing a size 20\u00a0K\u2010file into the periapical tissues. Mineral trioxide aggregate was then placed over the blood clot. The access cavity was restored using glass\u2013ionomer cement and resin composite. After 2\u00a0years, the tooth was asymptomatic and radiographic examination revealed hard tissue formation in the perforated resorption area and remodelling of the root surface.<\/jats:p><\/jats:sec><jats:sec><jats:title>Key learning points<\/jats:title><jats:p>\n<jats:list list-type=\"bullet\">\n\n<jats:list-item><jats:p>Regenerative endodontic treatment procedures are an alternative approach to treat perforated internal root resorption lesions.<\/jats:p><\/jats:list-item>\n\n<jats:list-item><jats:p>Calcium hydroxide was effective as an intracanal medicament in regenerative endodontic treatment procedures.<\/jats:p><\/jats:list-item>\n<\/jats:list>\n<\/jats:p><\/jats:sec>","DOI":"10.1111\/iej.12784","type":"journal-article","created":{"date-parts":[[2017,4,25]],"date-time":"2017-04-25T07:23:33Z","timestamp":1493105013000},"page":"128-137","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":38,"title":["Regenerative endodontic treatment of perforated internal root resorption: a case report"],"prefix":"10.1111","volume":"51","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2388-2846","authenticated-orcid":false,"given":"M. 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