{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,11]],"date-time":"2026-07-11T09:42:54Z","timestamp":1783762974980,"version":"3.55.0"},"reference-count":21,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2014,10,17]],"date-time":"2014-10-17T00:00:00Z","timestamp":1413504000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Orthod Craniofacial Res"],"published-print":{"date-parts":[[2015,2]]},"abstract":"<jats:title>Structured Abstract<\/jats:title><jats:sec><jats:title>Objectives<\/jats:title><jats:p>To investigate periodontal tissue changes during and after molar intrusion in rats.<\/jats:p><\/jats:sec><jats:sec><jats:title>Setting and Sample population<\/jats:title><jats:p>The <jats:styled-content style=\"fixed-case\">D<\/jats:styled-content>epartment of <jats:styled-content style=\"fixed-case\">O<\/jats:styled-content>rthodontics at <jats:styled-content style=\"fixed-case\">Y<\/jats:styled-content>onsei <jats:styled-content style=\"fixed-case\">U<\/jats:styled-content>niversity. Thirty 12\u2010week\u2010old male rats were assigned to 1 control and 5 experimental groups (n\u00a0=\u00a05 each).<\/jats:p><\/jats:sec><jats:sec><jats:title>Materials and Methods<\/jats:title><jats:p>In the experimental groups, two maxillary molars were intruded for 2\u00a0weeks; the control group underwent the same procedures without the intrusion force. After 2\u00a0weeks of intrusion, rats in one of the experimental groups and in the control group were killed. In the other four experimental groups, the new molar positions were either retained or not retained with an occlusal bite block for 1 or 2\u00a0weeks prior to euthanization. Histomorphometric analysis was performed for sulcus depth, osteoclast number per unit alveolar bone length, and root resorption area per unit root surface length.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Sulcus depth increased during intrusion (<jats:italic>P\u00a0<\/jats:italic>&lt;<jats:italic>\u00a0<\/jats:italic>0.05), but decreased after 2\u00a0weeks of retention (<jats:italic>P\u00a0<\/jats:italic>&lt;<jats:italic>\u00a0<\/jats:italic>0.05). The number of osteoclasts increased during intrusion (<jats:italic>P\u00a0<\/jats:italic>&lt;<jats:italic>\u00a0<\/jats:italic>0.05), but subsequently decreased regardless of the retention regime (<jats:italic>P\u00a0<\/jats:italic>&lt;<jats:italic>\u00a0<\/jats:italic>0.05). Root resorption area increased after molar intrusion, irrespective of the retention regimen, relative to that of the control group (<jats:italic>P\u00a0<\/jats:italic>&lt;<jats:italic>\u00a0<\/jats:italic>0.05) and was the greatest after 2\u00a0weeks of retention.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>These results indicated that root resorption occurred during and after molar intrusion and that the surrounding periodontium remodeled accordingly as tooth positions were altered, regardless of retention regime.<\/jats:p><\/jats:sec>","DOI":"10.1111\/ocr.12054","type":"journal-article","created":{"date-parts":[[2014,10,17]],"date-time":"2014-10-17T05:52:04Z","timestamp":1413525124000},"page":"12-20","source":"Crossref","is-referenced-by-count":13,"title":["Histomorphometric evaluation of maxillary molar roots and surrounding periodontium following molar intrusion in rats"],"prefix":"10.1111","volume":"18","author":[{"given":"Y. J.","family":"Choi","sequence":"first","affiliation":[{"name":"Department of Orthodontics Gangnam Severance Hospital College of Dentistry The Institute of Craniofacial Deformity Yonsei University Seoul Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"K. H.","family":"Kim","sequence":"additional","affiliation":[{"name":"Department of Orthodontics Gangnam Severance Hospital College of Dentistry The Institute of Craniofacial Deformity Yonsei University Seoul Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"K. J.","family":"Lee","sequence":"additional","affiliation":[{"name":"Department of Orthodontics College of Dentistry The Institute of Craniofacial Deformity Yonsei University Seoul Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"C. J.","family":"Chung","sequence":"additional","affiliation":[{"name":"Department of Orthodontics Gangnam Severance Hospital College of Dentistry The Institute of Craniofacial Deformity Yonsei University Seoul Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Y. C.","family":"Park","sequence":"additional","affiliation":[{"name":"Department of Orthodontics College of Dentistry The Institute of Craniofacial Deformity Yonsei University Seoul Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2014,10,17]]},"reference":[{"key":"e_1_2_7_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ajodo.2006.04.025"},{"key":"e_1_2_7_3_1","first-page":"761","article-title":"Apical root resorption of maxillary first molars after intrusion with zygomatic skeletal anchorage","volume":"75","author":"Ari\u2010Demirkaya A","year":"2005","journal-title":"Angle Orthod"},{"key":"e_1_2_7_4_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ajodo.2006.08.017"},{"key":"e_1_2_7_5_1","doi-asserted-by":"publisher","DOI":"10.1067\/mod.2001.114300"},{"key":"e_1_2_7_6_1","first-page":"60","article-title":"The influences of molar intrusion on the inferior alveolar neurovascular bundle and root using the skeletal anchorage system in dogs","volume":"71","author":"Daimaruya T","year":"2001","journal-title":"Angle Orthod"},{"key":"e_1_2_7_7_1","first-page":"158","article-title":"Effects of maxillary molar intrusion on the nasal floor and tooth root using the skeletal anchorage system in dogs","volume":"73","author":"Daimaruya T","year":"2003","journal-title":"Angle Orthod"},{"key":"e_1_2_7_8_1","doi-asserted-by":"publisher","DOI":"10.2319\/060510-307.1"},{"key":"e_1_2_7_9_1","first-page":"243","article-title":"Treatment and posttreatment dentoalveolar changes following intrusion of mandibular molars with application of a skeletal anchorage system (SAS) for open bite correction","volume":"17","author":"Sugawara J","year":"2002","journal-title":"Int J Adult Orthodon Orthognath Surg"},{"key":"e_1_2_7_10_1","doi-asserted-by":"publisher","DOI":"10.4041\/kjod.2008.38.1.31"},{"key":"e_1_2_7_11_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ajodo.2010.05.006"},{"key":"e_1_2_7_12_1","doi-asserted-by":"publisher","DOI":"10.4041\/kjod.2014.44.4.203"},{"key":"e_1_2_7_13_1","doi-asserted-by":"publisher","DOI":"10.1016\/0889-5406(88)90358-7"},{"key":"e_1_2_7_14_1","doi-asserted-by":"publisher","DOI":"10.1067\/mod.2001.119385"},{"key":"e_1_2_7_15_1","doi-asserted-by":"publisher","DOI":"10.1016\/0889-5406(89)90390-9"},{"key":"e_1_2_7_16_1","doi-asserted-by":"publisher","DOI":"10.1093\/ejo\/2.1.41"},{"key":"e_1_2_7_17_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ajodo.2010.07.003"},{"key":"e_1_2_7_18_1","doi-asserted-by":"publisher","DOI":"10.1093\/ejo\/25.2.199"},{"key":"e_1_2_7_19_1","volume-title":"Ten Cate's Oral Histology: Development, Structure, and Function","author":"Nanci A","year":"2008"},{"key":"e_1_2_7_20_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0002-9416(70)90219-8"},{"key":"e_1_2_7_21_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ajodo.2005.01.029"},{"key":"e_1_2_7_22_1","doi-asserted-by":"publisher","DOI":"10.1177\/00220345580370060301"}],"container-title":["Orthodontics &amp; Craniofacial Research"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1111%2Focr.12054","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1111\/ocr.12054","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,10,2]],"date-time":"2023-10-02T03:28:07Z","timestamp":1696217287000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1111\/ocr.12054"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2014,10,17]]},"references-count":21,"journal-issue":{"issue":"1","published-print":{"date-parts":[[2015,2]]}},"alternative-id":["10.1111\/ocr.12054"],"URL":"https:\/\/doi.org\/10.1111\/ocr.12054","archive":["Portico"],"relation":{},"ISSN":["1601-6335","1601-6343"],"issn-type":[{"value":"1601-6335","type":"print"},{"value":"1601-6343","type":"electronic"}],"subject":[],"published":{"date-parts":[[2014,10,17]]}}}