ArticleKorean journal of orthodontics2026
Dentoalveolar outcomes and the long-term stability of tooth-tissue-borne versus bone-tissue-borne rapid maxillary expansion in growing patients: A 5.8-year follow-up.
Article in Korean journal of orthodontics, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Objective: This retrospective study evaluated the short- and long-term dentoalveolar effects and the long-term stability of tooth-tissue-borne (TTB) and bone-tissue-borne (BTB) rapid maxillary expansion (RME) appliances in growing patients. Methods: Individuals treated with TTB-RME (n = 20; 12 males, 8 females; mean age at T1: 12.44 ± 0.75 years) and those treated with BTB-RME (n = 20; 10 males, 10 females; mean age at T1: 12.86 ± 0.80 years), for a total sample of 40 patients, were retrospectively evaluated. Digital models were analyzed at four different time points: before treatment (T1), 3 months after expansion (T2), at the end of fixed orthodontic treatment (T3), and at long-term follow-up (T4). Maxillary arch width, palatal area, and palatal volume were measured. Longitudinal changes were analyzed using a mixed-design analysis of variance (ANOVA). Results: RME led to statistically significant increases in all evaluated parameters for both groups. A mixed-design ANOVA revealed significant main effects of time for all parameters (all Conclusions: Both TTB-RME and BTB-RME produced significant increases in maxillary transverse dimensions in growing patients, with no significant difference between the two appliances in the pattern of longitudinal changes.
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