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Table 1 Comparisons of the mean differences in mesiodistal crown diameters (mm) between the male and female groups

From: Prediction of unerupted canines and premolars in a Syrian sample

  Males Females t value p value
  Mean SD Mean SD   
Maxillary arch       
  Central incisor 8.82 0.59 8.63 0.57 2.932 0.004
  Lateral incisor 6.84 0.58 6.71 0.62 2.032 0.043
  Canine 8.00 0.45 7.78 0.51 4.089 <0.001
  First premolar 7.08 0.42 6.96 0.45 2.345 0.020
  Second premolar 6.74 0.43 6.65 0.46 2.150 0.035
  First molar 10.43 0.59 10.25 0.57 2.833 0.005
  ∑345 21.81 1.14 21.39 1.26 3.183 0.002
Mandibular arch       
  Central incisor 5.56 0.41 5.47 0.41 2.0.35 0.040
  Lateral incisor 6.12 0.42 5.98 0.44 2.871 0.004
  Canine 7.01 0.48 6.73 0.46 5.469 <0.001
  First premolar 7.17 0.45 7.04 0.49 2.452 0.015
  Second premolar 7.27 0.44 7.15 0.47 2.405 0.017
  First molar 11.31 0.57 11.07 0.64 3.527 <0.001
  ∑345 21.45 1.21 20.91 1.24 3.938 <0.001
  1. ∑345 is the sum of the permanent canines and premolars in one arch quarter.