{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,30]],"date-time":"2026-04-30T15:06:20Z","timestamp":1777561580656,"version":"3.51.4"},"reference-count":10,"publisher":"SAGE Publications","issue":"2_suppl","license":[{"start":{"date-parts":[[2023,8,19]],"date-time":"2023-08-19T00:00:00Z","timestamp":1692403200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"},{"start":{"date-parts":[[2023,8,19]],"date-time":"2023-08-19T00:00:00Z","timestamp":1692403200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"funder":[{"name":"National Research Foundation of Korea (NRF) grant funded by the Korea government","award":["2020R1C1C1014734"],"award-info":[{"award-number":["2020R1C1C1014734"]}]}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Ear Nose Throat J"],"published-print":{"date-parts":[[2025,11]]},"abstract":"<jats:p>Calcium hydroxide is a widely used endodontic medicament with antibacterial activity. When excessive pressure is applied during injection of calcium hydroxide paste or apical perforation occurs, calcium hydroxide can leak into the maxillary sinus and is adsorbed onto the sinus membrane. Although a leakage of calcium hydroxide may not usually cause clinical symptoms, when a large amount of leakage occurs, it can cause degeneration of adjacent tissue and functional disorder, requiring immediate surgical removal. However, due to adsorption to the sinus membrane, calcium hydroxide leaked into the maxillary sinus is difficult to remove completely. Here, we describe the case of a 47-year-old patient in whom a large amount of calcium hydroxide leaked into the maxillary sinus and was successfully removed using modified endoscopic-assisted sinus surgery, and favorable bone regeneration and sinus membrane regeneration were achieved. In addition, histological and ultrastructural changes of the membrane resulted from the calcium hydroxide were presented.<\/jats:p>","DOI":"10.1177\/01455613231191378","type":"journal-article","created":{"date-parts":[[2023,8,19]],"date-time":"2023-08-19T08:05:17Z","timestamp":1692432317000},"update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":1,"title":["Removal of Calcium Hydroxide Paste Leaked Into the Maxillary Sinus"],"prefix":"10.1177","volume":"104","author":[{"given":"Dohee","family":"Kim","sequence":"first","affiliation":[{"name":"Department of Oral and Maxillofacial Surgery, School of Dentistry, Dental Research Institute, Seoul National University, Seoul, Republic of Korea"},{"name":"Department of Oral and Maxillofacial Surgery, Seoul National University Dental Hospital, Seoul, Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Young","family":"Kim","sequence":"additional","affiliation":[{"name":"Department of Oral Pathology, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8975-0198","authenticated-orcid":false,"given":"Jeong Joon","family":"Han","sequence":"additional","affiliation":[{"name":"Department of Oral and Maxillofacial Surgery, School of Dentistry, Dental Research Institute, Seoul National University, Seoul, Republic of Korea"},{"name":"Department of Oral and Maxillofacial Surgery, Seoul National University Dental Hospital, Seoul, Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2023,8,19]]},"reference":[{"key":"e_1_3_2_2_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1600-9657.1985.tb00652.x"},{"key":"e_1_3_2_3_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.tripleo.2006.11.021"},{"key":"e_1_3_2_4_2","doi-asserted-by":"publisher","DOI":"10.1111\/iej.12560"},{"key":"e_1_3_2_5_2","doi-asserted-by":"publisher","DOI":"10.5395\/rde.2017.42.4.290"},{"key":"e_1_3_2_6_2","doi-asserted-by":"publisher","DOI":"10.5395\/rde.2014.39.1.63"},{"key":"e_1_3_2_7_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00405-016-4416-4"},{"key":"e_1_3_2_8_2","doi-asserted-by":"publisher","DOI":"10.1097\/SCS.0000000000008603"},{"key":"e_1_3_2_9_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.tripleo.2008.10.019"},{"key":"e_1_3_2_10_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.tripleo.2008.06.008"},{"key":"e_1_3_2_11_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1365-2591.1993.tb00576.x"}],"container-title":["Ear, Nose &amp; Throat Journal"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/01455613231191378","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/full-xml\/10.1177\/01455613231191378","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/01455613231191378","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,4,28]],"date-time":"2026-04-28T18:34:04Z","timestamp":1777401244000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.sagepub.com\/doi\/10.1177\/01455613231191378"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2023,8,19]]},"references-count":10,"journal-issue":{"issue":"2_suppl","published-print":{"date-parts":[[2025,11]]}},"alternative-id":["10.1177\/01455613231191378"],"URL":"https:\/\/doi.org\/10.1177\/01455613231191378","relation":{},"ISSN":["0145-5613","1942-7522"],"issn-type":[{"value":"0145-5613","type":"print"},{"value":"1942-7522","type":"electronic"}],"subject":[],"published":{"date-parts":[[2023,8,19]]}}}