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Table 4 Mean (± SD) skeletal and dentoalveolar expansion (mm) (T1-T0) at M1, P1, and/or C

From: Efficacy of Miniscrew-Assisted Rapid Palatal Expansion (MARPE) in late adolescents and adults with the Dutch Maxillary Expansion Device: a prospective clinical cohort study

Position Total expansion Midpalatal suture separation Alveolar width increase Nasal cavity expansion
M1 6.56 ± 1.70*** 3.75 ± 1.02*** 4.43 ± 1.60*** 2.07 ± 1.42***
P1 4.19 ± 1.29*** 3.86 ± 0.95*** 3.86 ± 1.49***  
C 4.19 ± 1.57***    
  1. Paired t-tests were performed; ***p < 0.001