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- W3032321666 abstract "ObjectiveThe purpose of this study is to investigate the changes of dentofacial skeleton after orthodontic treatment in anterior open bite patients, and explore their influence on anterior overbite.MethodsThe sample comprised 50 anterior open bite patients with 37 premolar extraction-treated sample and 13 non-extraction-treated sample. The pre-treatment and post-treatment cephalograms were measured. Twenty-eight measurements were constructed. Pre-treatment and post-treatment variables were compared using paired t-test. The changes of variables between two groups were compared using independent t-test. Stepwise multiple 1inear regression was used to screen variables that could affect the change of overbite.ResultsAfter orthodontic treatment, the upper and lower incisors were significantly retracted [U1-NA: (-2.43±3.86) mm, P<0.001; U1/NA: -8.82°±9.53°, P<0.001; L1/NB: -6.12°±6.82°, P<0.001; U1/L1: 14.40°±12.17°, P<0.001] with a greater height of lower alveolus [(1.89±2.43) mm, P<0.01]. There was no significant difference between the premolar extraction-treated group and the non-extraction-treated group. Stepwise multiple linear regression showed that the change of anterior overbite was affected by the change of upper incisor inclination and lower alveolar height.ConclusionsRetraction of incisors and elongation of lower alveolar height were observed following orthodontic treatment and affected the overbite in anterior open bite patients.Key words: Anterior open bite; Alveolar compensatory; Cephalometrics; Dentofacial changes" @default.
- W3032321666 created "2020-06-05" @default.
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- W3032321666 date "2017-03-20" @default.
- W3032321666 modified "2023-09-26" @default.
- W3032321666 title "An analysis of changes in the dentofacial skeleton following orthodontic treatment in anterior open bite patients" @default.
- W3032321666 doi "https://doi.org/10.3760/cma.j.issn.1674-5760.2017.01.008" @default.
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