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Table 2 Comparison of matching percentage of pre and post-treatment orbital 3D models between tooth-borne (TB) and bone-borne (BB) group

From: Evaluation of the changes of orbital cavity volume and shape after tooth-borne and bone-borne rapid maxillary expansion (RME)

   TB Group BB group  
Sample size Matching SD Matching SD Significance
Percentage Percentage
(T1-T2) (T1-T2)
Tolerance A 40 83,84% 3,67% 81,87% 2,70% p > 0.05
Tolerance B 40 94,46% 2,97% 92,89% 2,65% p > 0.05
  1. T1 = before maxillary expansion, T2 = 6 months after maxillary expansion. P values are reported according to the unpaired Student’s t Test
  2. Tolerance A = 0,20 mm; Tolerance B = 0,40 mm. SD = standard deviation