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Table 6 Comparison between BOP and FOP in each skeletal pattern

From: Changes of occlusal plane inclination after orthodontic treatment in different dentoskeletal frames

(BOP-SN°)-(FOP-SN°)a   Skeletal class I (n= 30) Skeletal class II (n= 30) Skeletal class III (n= 30)
Pre-treatment Mean ± SD −0.13 ± 2.71 −0.02 ± 2.29 −0.24 ± 3.44
p value 0.799 0.968 0.000***
Post-treatment Mean ± SD 1.29 ± 1.93 0.90 ± 1.74 0.52 ± 1.53
p value 0.017* 0.009** 0.076
  1. a “°” represents the unit of angle measurement “degree”; *p < 0.05; **p < 0.01; ***p < 0.001.