{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,8]],"date-time":"2026-10-08T09:57:27Z","timestamp":1791453447235,"version":"4.3.3"},"reference-count":48,"publisher":"Springer Science and Business Media LLC","issue":"5","license":[{"start":{"date-parts":[[2020,5,29]],"date-time":"2020-05-29T00:00:00Z","timestamp":1590710400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"},{"start":{"date-parts":[[2020,5,29]],"date-time":"2020-05-29T00:00:00Z","timestamp":1590710400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["J Orofac Orthop"],"published-print":{"date-parts":[[2020,9]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec>\n<jats:title>Purpose<\/jats:title>\n<jats:p>To test the null hypothesis of no significant deviation between the center of rotation (C<jats:sub>ROT<\/jats:sub>) and the center of resistance (C<jats:sub>RES<\/jats:sub>) during space closure in Angle class\u00a0II division\u00a02 subjects achieved using a\u00a0completely customized lingual appliance (CCLA) in combination with class\u00a0II elastics and elastic chains.<\/jats:p>\n<\/jats:sec><jats:sec>\n<jats:title>Methods<\/jats:title>\n<jats:p>This retrospective study included 29\u00a0patients (male\/female 11\/18; mean age 15.6 [13\u201327]\u00a0years) with inclusion criteria of an Angle class\u00a0II\/2 occlusion of least of half of a\u00a0cusp, maxillary dental arch spacing, completed CCLA treatment (WIN, DW Lingual Systems, Bad Essen, Germany) in one center with a\u00a0standardized archwire sequence and use of class\u00a0II elastics and elastic chains only. Maxillary incisor root inclination was assessed by X\u2011ray superimpositions of the maxilla at the beginning (T1) and the end (T3) of CCLA treatment. Using Keynote software (Apple\u00ae, Cupertino, CA, USA), the incisor\u2019s C<jats:sub>ROT<\/jats:sub> was assessed with the point of intersection of the incisor axes (T1; T3) following vertical correction of overbite changes. C<jats:sub>RES<\/jats:sub> was defined at 36% of the incisor\u2019s apex\u2013incisal edge distance.<\/jats:p>\n<\/jats:sec><jats:sec>\n<jats:title>Results<\/jats:title>\n<jats:p>The null hypothesis was rejected: the mean C<jats:sub>ROT<\/jats:sub>\u202f\u2212\u2009C<jats:sub>RES<\/jats:sub> difference was 52.6% (<jats:italic>p<\/jats:italic>\u202f&lt;\u20090.001). The mean C<jats:sub>ROT<\/jats:sub> was located at 88.6% (min\u2013max 51\u2013100%) of the incisor\u2019s apex\u2013incisal edge distance. Although 6.9% of C<jats:sub>ROT<\/jats:sub> were located between the C<jats:sub>RES<\/jats:sub> and the alveolar crest, the vast majority (93.1%) were assessed between the alveolar crest and the incisal edge, or beyond.<\/jats:p>\n<\/jats:sec><jats:sec>\n<jats:title>Conclusion<\/jats:title>\n<jats:p>CCLAs can create upper incisor palatal root torque even in cases in which lingually oriented forces applied incisally to the center of resistance of the upper incisors counteract these intended root movements.<\/jats:p>\n<\/jats:sec>","DOI":"10.1007\/s00056-020-00231-9","type":"journal-article","created":{"date-parts":[[2020,5,29]],"date-time":"2020-05-29T17:02:55Z","timestamp":1590771775000},"page":"328-339","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":22,"title":["Controlling incisor torque with completely customized lingual appliances","Kontrolle des Schneidezahntorques mit vollst\u00e4ndig individuellen lingualen Apparaturen"],"prefix":"10.1007","volume":"81","author":[{"given":"Ons","family":"Alouini","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Michael","family":"Kn\u00f6sel","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Moritz","family":"Blanck-Lubarsch","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hans-Joachim","family":"Helms","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dirk","family":"Wiechmann","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2020,5,29]]},"reference":[{"key":"231_CR1","first-page":"CD005972","volume":"2","author":"DT Millett","year":"2018","unstructured":"Millett\u00a0DT, Cunningham\u00a0SJ, O\u2019Brien\u00a0KD, Benson\u00a0PE, de Oliveira\u00a0CM (2018) Orthodontic treatment for deep bite and retroclined upper front teeth in children. 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Am J Orthod Dentofacial Orthop 134:176\u2013177","journal-title":"Am J Orthod Dentofacial Orthop"}],"container-title":["Journal of Orofacial Orthopedics \/ Fortschritte der Kieferorthop\u00e4die"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/link.springer.com\/content\/pdf\/10.1007\/s00056-020-00231-9.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/link.springer.com\/article\/10.1007\/s00056-020-00231-9\/fulltext.html","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/link.springer.com\/content\/pdf\/10.1007\/s00056-020-00231-9.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2021,5,28]],"date-time":"2021-05-28T23:30:25Z","timestamp":1622244625000},"score":1,"resource":{"primary":{"URL":"https:\/\/link.springer.com\/10.1007\/s00056-020-00231-9"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2020,5,29]]},"references-count":48,"journal-issue":{"issue":"5","published-print":{"date-parts":[[2020,9]]}},"alternative-id":["231"],"URL":"https:\/\/doi.org\/10.1007\/s00056-020-00231-9","relation":{},"ISSN":["1434-5293","1615-6714"],"issn-type":[{"value":"1434-5293","type":"print"},{"value":"1615-6714","type":"electronic"}],"subject":[],"published":{"date-parts":[[2020,5,29]]},"assertion":[{"value":"21 April 2019","order":1,"name":"received","label":"Received","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"11 March 2020","order":2,"name":"accepted","label":"Accepted","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"29 May 2020","order":3,"name":"first_online","label":"First Online","group":{"name":"ArticleHistory","label":"Article History"}},{"order":1,"name":"Ethics","group":{"name":"EthicsHeading","label":"Compliance with ethical guidelines"}},{"value":"D.\u00a0Wiechmann is the inventor of the WIN appliance and Managing Director of the manufacturing company DW LingualSystems, Bad Essen, Germany. O.\u00a0Alouini, M.\u00a0Kn\u00f6sel, M.\u00a0Blanck-Lubarsch and H.-J.\u00a0Helms declare that they have no competing interests.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Conflict of interest"}},{"value":"This study received full prior approval from the Ethics Committee of the Hannover Medical School (No. 3151-2016). Informed consent to anonymized data release was obtained from all patients or their legal guardians included in this study.","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethical standards"}}]}}