{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,6]],"date-time":"2026-10-06T12:59:19Z","timestamp":1791291559975,"version":"4.3.0"},"reference-count":37,"publisher":"Wiley","license":[{"start":{"date-parts":[[2026,10,6]],"date-time":"2026-10-06T00:00:00Z","timestamp":1791244800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,10,6]],"date-time":"2026-10-06T00:00:00Z","timestamp":1791244800000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Orthod Craniofacial Res"],"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Objective<\/jats:title>\n                    <jats:p>The aim of this study is to investigate posterior tooth height and mandibular ramus height in skeletal Class II hyperdivergent patients using cone\u2010beam computed tomography (CBCT) and to assess their associations with the hyperdivergent pattern.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>\n                      CBCT data from 60 adult skeletal Class II hyperdivergent patients and 60 adult Class I average\u2010angle patients were analysed. Vertical measurements of posterior teeth and mandibular ramus heights were performed and compared between the two groups using independent samples\n                      <jats:italic>t<\/jats:italic>\n                      \u2010tests. Pearson correlation analyses were performed separately within each group to assess the relationships between posterior teeth heights and mandibular ramus height.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      Both ramus and condyle heights in the Class II hyperdivergent group were significantly shorter than those in the Class I average\u2010angle group (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.001). And the vertical heights of maxillary molars (U6\u2010FH:\u200948.5\u2009\u00b1\u20092.9\u2009mm; U7\u2010FH:\u200944.8\u2009\u00b1\u20093.2\u2009mm) in the Class II hyperdivergent group were significantly shorter than those in the Class I group (U6\u2010FH:\u200949.8\u2009\u00b1\u20092.9\u2009mm; U7\u2010FH:\u200947.2\u2009\u00b1\u20093.0\u2009mm;\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u20090.013 and\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.001, respectively). Posterior tooth height showed positive correlations with mandibular ramus height in both groups. Correlations with condylar height were less consistent, particularly for the lower posterior teeth. Stronger correlations were observed for the upper posterior teeth.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>No evidence of posterior tooth overeruption was observed in skeletal Class II hyperdivergent patients. Instead, a shorter mandibular ramus height was observed in the hyperdivergent group compared with the Class I group. Significant positive correlations were found between posterior tooth height and ramus height. These findings indicate an association between skeletal and dental measurements and do not support the previously hypothesized \u201cstruggle\u201d dynamic.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1111\/ocr.70192","type":"journal-article","created":{"date-parts":[[2026,10,6]],"date-time":"2026-10-06T12:28:38Z","timestamp":1791289718000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Are Posterior Teeth Overerupted or Is the Mandibular Ramus Shorter? \u2014 A\n                    <scp>CBCT<\/scp>\n                    Study of Skeletal Class\n                    <scp>II<\/scp>\n                    Hyperdivergent Patients Compared With Class I"],"prefix":"10.1111","author":[{"given":"Xiaoyu","family":"Qin","sequence":"first","affiliation":[{"name":"Department of Stomatology Changzhi People's Hospital  Changzhi Shanxi Prov China"},{"name":"Orthodontic Department Stomatological Hospital of Dalian University (Dalian Stomatological Hospital)  Dalian Liaoning Province China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhenyuan","family":"Zhang","sequence":"additional","affiliation":[{"name":"Orthodontic Department Stomatological Hospital of Dalian University (Dalian Stomatological Hospital)  Dalian Liaoning Province China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ruoxin","family":"Du","sequence":"additional","affiliation":[{"name":"Orthodontic Department Stomatological Hospital of Dalian University (Dalian Stomatological Hospital)  Dalian Liaoning Province China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yaojuan","family":"Qian","sequence":"additional","affiliation":[{"name":"Orthodontic Department Stomatological Hospital of Dalian University (Dalian Stomatological Hospital)  Dalian Liaoning Province China"},{"name":"Department of Stomatology Changzhou Traditional Chinese Medical Hospital  Changzhou Jiangsu Prov China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Junqiu","family":"Wang","sequence":"additional","affiliation":[{"name":"Orthodontic Department Stomatological Hospital of Dalian University (Dalian Stomatological Hospital)  Dalian Liaoning Province China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hongtao","family":"Jiang","sequence":"additional","affiliation":[{"name":"Orthodontic Department Stomatological Hospital of Dalian University (Dalian Stomatological Hospital)  Dalian Liaoning Province China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0004-9245-9288","authenticated-orcid":false,"given":"Gang","family":"Guo","sequence":"additional","affiliation":[{"name":"Department of Stomatology Changzhi People's Hospital  Changzhi Shanxi Prov China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Weifeng","family":"Han","sequence":"additional","affiliation":[{"name":"Orthodontic Department Stomatological Hospital of Dalian University (Dalian Stomatological Hospital)  Dalian Liaoning Province China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yan","family":"Li","sequence":"additional","affiliation":[{"name":"Endodontic Department Stomatological Hospital of Dalian University (Dalian Stomatological Hospital)  Dalian Liaoning Province China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0002-5346-9040","authenticated-orcid":false,"given":"Mingfeng","family":"Wang","sequence":"additional","affiliation":[{"name":"Orthodontic Department Stomatological Hospital of Dalian University (Dalian Stomatological Hospital)  Dalian Liaoning Province China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,10,6]]},"reference":[{"key":"e_1_2_13_2_1","first-page":"709","volume-title":"Contemporary Orthodontics","author":"Proffit W. 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