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Inclusion criteria were overjet\u202f\u2265\u20094\u202fmm, skeletal Class\u00a0II and availability of study casts from before, after and \u2265\u202f15\u00a0years after treatment. The study casts were assessed using the Peer Assessment Rating (PAR) index and standard orthodontic cast measurements.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>During treatment, PAR score, overjet and sagittal occlusal relationship improved significantly in all groups. Long-term, there was a\u00a0significant increase of incisor irregularity in the upper (HMB) and lower (BIO) arch and a\u00a0significant decrease of lower arch width 3\u202f\u2013\u20093 (BIO). PAR score, overjet, and sagittal occlusal relationship remained stable long-term. Intergroup comparisons revealed significant differences between the BIO and HMB groups in terms of lower arch width (6\u202f\u2013\u20096), upper and lower arch width (3\u202f+\u20093\/3\u202f\u2013\u20093) as well as sagittal molar relationship.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>The achieved improvement in PAR score, overjet, and sagittal occlusion remained comparably stable long-term in all groups. The long-term changes are probably a\u00a0consequence of natural aging.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1007\/s00056-023-00457-3","type":"journal-article","created":{"date-parts":[[2023,2,24]],"date-time":"2023-02-24T06:02:50Z","timestamp":1677218570000},"page":"260-269","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Long-term (\u2265\u202f15\u00a0years) outcome quality after Class\u00a0II:1 bionator or Herbst multibracket appliance treatment","Qualit\u00e4t der Langzeitergebnisse (\u2265 15 Jahre) nach Klasse-II:1-Behandlung mit Bionator bzw. 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