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Table 4 Non-nutritive sucking habits and occlusal characteristics

From: Effects of breast-feeding duration, bottle-feeding duration and non-nutritive sucking habits on the occlusal characteristics of primary dentition

Characteristics Pacifier sucking Digit sucking
  Chi-square test P Chi-square test P
Posterior crossbite 0.7416 0.3891 1.2050 0.2723
No maxillary space 0.0146 0.9038 0.9173 0.3382
Mesia step 0.1041 0.7470 0.0114 0.9151
Class IIcanine relationship 0.2657 0.6062 0.0036 0.9519
Overjet4 mm 6.6105 0.0101* 0.0305 0.8613
Absence of lower arch developmental space 4.3492 0.0370* 2.3139 0.1282
Anterior open bite 0.3012 0.5832 20.3337 0.0000*
Anterior crossbite 0.2477 0.6187 0.1574 0.6916
  1. The chi-square test was used to analyze the associations between non-nutritive sucking and occlusal characteristics.
  2. *Comparisons are significantly different, P < 0.05.