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Table 3 Distribution of left mandibular 1st and 2nd premolar with respect to gender

From: Evaluation of root and canal morphology of mandibular premolar amongst Saudi subpopulation using the new system of classification: a CBCT study

Classification

Left 1st PM

Left 2nd PM

Male

Female

p-value

Male

Female

p-value

1 PM 1

139

122

0.056

157

120

0.528

1 PM 1–2−1

14

4

 

2

0

 

1 PM 1–2

12

6

 

1

2

 

1 PM 1–2−1–2

0

1

    

2 PM 1 B 1 L 1

17

4

 

0

1

 

2 PM B 1 L 1

2

1

    

3 PMMB 1 DB 1 L 1

   

2

1

 

 C-Shaped canals

   

3

0

 

Total

184

138

 

165

124

 
  1. PM- premolar, *significant value < 0.05; Chi-square test