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Table 4 The distribution of inter-canine and inter-molar distances according to age group

From: Association between breastfeeding duration, non-nutritive sucking habits and dental arch dimensions in deciduous dentition: a cross-sectional study

  Maxilla Mandible
ICD (cm) IMD (cm) ICD (cm) IMD (cm)
4 years (n = 1) 4.10 ± 0.0 5.10 ± 0.0 3.60 ± 0.0 4.50 ± 0.0
5 years (n = 141) 3.93 ± 0.29 5.06 ± 0.33 3.47 ± 0.27 4.64 ± 0.31
6 years (n = 273) 4.06 ± 0.35 5.20 ± 0.32 3.59 ± 0.35 4.73 ± 0.33
P value 0.001 (S) 0.001 (S) 0.002 (S) 0.018 (S)
  1. Values are mean ± standard deviation. P value was obtained by one-way analysis of variance (ANOVA) after confirming the underlying normality assumption. P < 0.05 was considered to be statistically significant. ICD, inter-canine distance; IMD, inter-molar distance; S, statistically significant; NS, statistically non-significant.