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This case report describes two cases of advanced ECR treated with intentional replantation (IR), highlighting its efficacy as a viable treatment option for preservation of compromised teeth. The first case involved a 10\u2010year\u2010old girl with a Heithersay Class IV\/Patel 3Cd lesion following dental trauma, and the second case involved a 30\u2010year\u2010old male with a Heithersay Class IV\/Patel 3Bd lesion. Both cases were managed with IR, which included atraumatic extraction, extraoral restoration of defect, and reimplantation within 15\u2009min. Postoperative follow\u2010ups demonstrated short\u2010term functional preservation and temporary arrest of resorptive activity; however, long\u2010term outcomes could not be assessed due to limited follow\u2010up. The discussion emphasizes the importance of early diagnosis, multidisciplinary collaboration, and adherence to microsurgical principles to optimize the success of IR. Additionally, the utility of Heithersay and Patel\u2019s classification systems in guiding treatment decisions is underscored. These cases illustrate that even in severe ECR, strategic surgical intervention can achieve favorable results, offering clinicians a valuable alternative to extraction.<\/jats:p>","DOI":"10.1155\/crid\/5098467","type":"journal-article","created":{"date-parts":[[2026,3,8]],"date-time":"2026-03-08T11:43:35Z","timestamp":1772970215000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Heroic Saves in Endodontics: Management of Advanced External Cervical Resorption With Intentional Replantation: A Review and Report of Two Cases"],"prefix":"10.1155","volume":"2026","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-9170-653X","authenticated-orcid":false,"given":"Mohsen","family":"Aminsobhani","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Pegah","family":"Sarraf","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8967-4022","authenticated-orcid":false,"given":"Mehrfam","family":"Khoshkhounejad","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0005-0806-0125","authenticated-orcid":false,"given":"Maryam","family":"Babaahmadi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,2,26]]},"reference":[{"key":"e_1_2_11_1_2","doi-asserted-by":"publisher","DOI":"10.1111\/aej.12794"},{"key":"e_1_2_11_2_2","doi-asserted-by":"publisher","DOI":"10.4103\/0976-9668.127336"},{"key":"e_1_2_11_3_2","first-page":"27","article-title":"Clinical, Radiologic, and Histopathologic Features of Invasive Cervical Resorption","volume":"30","author":"Heithersay G. 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