{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,15]],"date-time":"2025-10-15T17:42:01Z","timestamp":1760550121307,"version":"3.37.3"},"reference-count":17,"publisher":"Wiley","license":[{"start":{"date-parts":[[2016,1,1]],"date-time":"2016-01-01T00:00:00Z","timestamp":1451606400000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["BioMed Research International"],"published-print":{"date-parts":[[2016]]},"abstract":"<jats:p><jats:italic>Objectives<\/jats:italic>. To investigate the correlation between frontal gaps and skeletal stability after intraoral vertical ramus osteotomy (IVRO) for correction of mandibular prognathism.<jats:italic>Materials and Methods<\/jats:italic>. Thirty-three patients with frontal gaps after IVRO-based mandibular prognathism correction were included. Three lateral and frontal cephalometric radiographs were obtained: preoperatively (T1), immediately postoperatively (T2), and 2 years postoperatively (T3). Two linear measurements (menton [Me] and frontal gap) were compared from T1 to T3 (T21: immediate surgical changes; T32: postoperative stability; T31: 2-year surgical change). Data were analyzed using Pearson\u2019s correlation coefficient and multiple linear regression.<jats:italic>Results<\/jats:italic>. The T21 mean surgical horizontal change in the Me position was<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M1\"><mml:mn fontstyle=\"italic\">12.4<\/mml:mn><mml:mo>\u00b1<\/mml:mo><mml:mn fontstyle=\"italic\">4.23<\/mml:mn><\/mml:math>\u2009mm. Vertically, the mean downward Me movement was<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M2\"><mml:mn fontstyle=\"italic\">0.6<\/mml:mn><mml:mo>\u00b1<\/mml:mo><mml:mn fontstyle=\"italic\">1.73<\/mml:mn><\/mml:math>\u2009mm. The mean frontal gaps were<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M3\"><mml:mn fontstyle=\"italic\">4.7<\/mml:mn><mml:mo>\u00b1<\/mml:mo><mml:mn fontstyle=\"italic\">2.68<\/mml:mn><\/mml:math>\u2009mm and<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M4\"><mml:mn fontstyle=\"italic\">4<\/mml:mn><mml:mo>\u00b1<\/mml:mo><mml:mn fontstyle=\"italic\">2.48<\/mml:mn><\/mml:math>\u2009mm in the right and left gonial regions, respectively. Postoperative stability (T32) significantly correlated with the amount of setback. Frontal gaps did not have a significant effect on postoperative stability. However, multiple regression model (<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M5\"><mml:msup><mml:mrow><mml:mi>R<\/mml:mi><\/mml:mrow><mml:mrow><mml:mn fontstyle=\"italic\">2<\/mml:mn><\/mml:mrow><\/mml:msup><mml:mo>=<\/mml:mo><mml:mn fontstyle=\"italic\">0.341<\/mml:mn><\/mml:math>,<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M6\"><mml:mi>P<\/mml:mi><mml:mo>=<\/mml:mo><mml:mn fontstyle=\"italic\">0.017<\/mml:mn><\/mml:math>) showed value predictability, especially in the amount of setback.<jats:italic>Conclusion<\/jats:italic>. Frontal gaps occur after IVRO but have no significant effect on long-term postoperative skeletal stability. The primary risk factor for postoperative relapse remains the amount of mandibular setback.<\/jats:p>","DOI":"10.1155\/2016\/7046361","type":"journal-article","created":{"date-parts":[[2016,9,27]],"date-time":"2016-09-27T18:08:30Z","timestamp":1474999710000},"page":"1-5","source":"Crossref","is-referenced-by-count":4,"title":["Relationship between Frontal Gap and Postoperative Stability in the Treatment of Mandibular Prognathism"],"prefix":"10.1155","volume":"2016","author":[{"given":"Yu-Chuan","family":"Tseng","sequence":"first","affiliation":[{"name":"Department of Orthodontics, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan"},{"name":"Graduate Institute of Dental Sciences, College of Dental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kun-Jung","family":"Hsu","sequence":"additional","affiliation":[{"name":"Department of Family Dentistry, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6474-0372","authenticated-orcid":true,"given":"Ker-Kong","family":"Chen","sequence":"additional","affiliation":[{"name":"Graduate Institute of Dental Sciences, College of Dental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ju-Hui","family":"Wu","sequence":"additional","affiliation":[{"name":"Department of Oral Hygiene, College of Dental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7993-9760","authenticated-orcid":true,"given":"Chun-Ming","family":"Chen","sequence":"additional","affiliation":[{"name":"Graduate Institute of Dental Sciences, College of Dental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan"},{"name":"Department of Oral and Maxillofacial Surgery, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","reference":[{"doi-asserted-by":"publisher","key":"1","DOI":"10.1016\/j.bjps.2006.04.001"},{"doi-asserted-by":"publisher","key":"2","DOI":"10.1097\/sap.0b013e318153f3ee"},{"doi-asserted-by":"publisher","key":"3","DOI":"10.1155\/2015\/318270"},{"doi-asserted-by":"publisher","key":"4","DOI":"10.1016\/j.tripleo.2006.11.038"},{"doi-asserted-by":"publisher","key":"5","DOI":"10.1016\/j.ijom.2012.06.024"},{"key":"6","first-page":"269","volume":"36","year":"1978","journal-title":"Journal of Oral Surgery"},{"doi-asserted-by":"publisher","key":"7","DOI":"10.1097\/SCS.0b013e31820f3718"},{"doi-asserted-by":"publisher","key":"8","DOI":"10.1016\/0278-2391(89)90276-0"},{"issue":"9","key":"9","doi-asserted-by":"crossref","first-page":"693","DOI":"10.1016\/0278-2391(86)90036-4","volume":"44","year":"1986","journal-title":"Journal of Oral and Maxillofacial Surgery"},{"doi-asserted-by":"publisher","key":"10","DOI":"10.1016\/0030-4220(82)90382-6"},{"issue":"1","key":"11","first-page":"7","volume":"6","year":"1991","journal-title":"The International Journal of Adult Orthodontics & Orthognathic Surgery"},{"key":"12","first-page":"203","volume":"3","year":"1986","journal-title":"The International Journal of Adult Orthodontics & Orthognathic Surgery"},{"doi-asserted-by":"publisher","key":"13","DOI":"10.1016\/j.jcms.2011.01.002"},{"doi-asserted-by":"publisher","key":"14","DOI":"10.1016\/j.jcms.2012.11.032"},{"doi-asserted-by":"publisher","key":"15","DOI":"10.1016\/j.joms.2012.12.012"},{"doi-asserted-by":"publisher","key":"16","DOI":"10.1016\/j.joms.2005.11.117"},{"doi-asserted-by":"publisher","key":"17","DOI":"10.1097\/SCS.0b013e31822e5da9"}],"container-title":["BioMed Research International"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/downloads.hindawi.com\/journals\/bmri\/2016\/7046361.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/downloads.hindawi.com\/journals\/bmri\/2016\/7046361.xml","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/downloads.hindawi.com\/journals\/bmri\/2016\/7046361.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2017,6,24]],"date-time":"2017-06-24T19:49:56Z","timestamp":1498333796000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.hindawi.com\/journals\/bmri\/2016\/7046361\/"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2016]]},"references-count":17,"alternative-id":["7046361","7046361"],"URL":"https:\/\/doi.org\/10.1155\/2016\/7046361","relation":{},"ISSN":["2314-6133","2314-6141"],"issn-type":[{"type":"print","value":"2314-6133"},{"type":"electronic","value":"2314-6141"}],"subject":[],"published":{"date-parts":[[2016]]}}}