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Table 1 Distribution of adolescents regarding sex, posterior crossbite, and angle classification

From: Mini Hyrax vs Hyrax expanders in the rapid palatal expansion in adolescents with posterior crossbite: a randomized controlled clinical trial

 

Mini Hyrax

Hyrax

p value

N (%)

N (%)

 

Sex

   

 Male

8 (53.3)

7 (46.7)

1.000a

 Female

7 (46.7)

8 (53.3)

 

Posterior crossbite

   

 Bilateral

5 (33.3)

4 (26.7)

0.811b

 Unilateral right side

6 (40.0)

5 (33.3)

 

 Unilateral left side

4 (26.7)

6 (40.0)

 

Angle classification

   

 Class I

5 (33.3)

6 (40.0)

1.000b

 Class II

4 (26.7)

4 (26.7)

 

 Class III

6 (40.0)

5 (33.3)

 
  1. aPearson’s chi-square test
  2. bFisher’s exact test