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Table 2 Comparisons of cephalometric measurements between control, hypodontia, and oligodontia

From: Examination of craniofacial morphology in Japanese patients with congenitally missing teeth: a cross-sectional study

  Control (C)
(n = 63)
Hypodontia (H)
(n = 56)
Oligodontia (O)
(n = 50)
C–H C–O H–O
Mean S.D. Mean S.D. Mean S.D. P value P value P value
Angular measurements
 SNA 0.00 1.06 0.14 0.83 − 0.36 0.98 0.702 0.129 0.024*
 SNB 0.65 1.45 0.58 1.22 0.71 1.65 0.962 0.972 0.885
 A-B plane angle 0.98 1.05 0.25 1.68 1.28 2.06 0.038* 0.599 0.004**
 Mandibular plane angle − 0.61 1.45 − 0.40 1.32 − 0.78 1.15 0.661 0.772 0.299
 Gonial angle − 0.07 1.47 − 0.55 2.83 − 0.61 2.26 0.481 0.411 0.988
 Ramus inclination − 0.55 1.17 − 0.36 1.36 − 0.66 1.45 0.732 0.887 0.475
 U1 to FH plane 1.75 1.94 0.10 2.63 0.68 3.19 0.002** 0.077 0.486
 L1 to mandibular plane − 0.13 1.20 − 0.45 1.45 − 0.83 1.68 0.454 0.029* 0.360
Linear measurements
 Ba-N 0.11 1.44 0.24 1.58 0.53 1.32 0.877 0.283 0.565
 Ptm-A 0.32 1.25 0.38 0.86 − 0.23 0.84 0.944 0.013* 0.007**
 Ar-Go 0.80 1.42 0.36 1.50 0.61 1.36 0.220 0.767 0.642
 Go-Pog 0.98 1.26 0.54 1.16 0.66 1.15 0.107 0.319 0.865
 N-Me 0.64 1.32 0.31 1.36 0.33 1.38 0.420 0.449 1.000
 ANS-Me − 0.22 0.94 − 0.24 1.11 − 0.94 1.07 0.993 0.001** 0.002**
 ANS-U1 − 0.98 1.17 − 0.50 1.53 − 1.26 1.64 0.175 0.553 0.020*
 U1-L1 − 0.87 1.63 0.21 1.98 0.51 2.17 0.007** 0.001** 0.701
  1. Each number represents the Z-score [(measurement-norm)/SD]. *P < 0.05, **P < 0.01