Table 3

 Effect of type of feeding and non-nutritive sucking on posterior cross-bite

Group of childrenCross-biteLogistic regression OR (95% CI)p value
Yes (%)No (%)
NNS+, children with non-nutritive sucking activity for more than 1 year; NNS−, children without non-nutritive sucking.
Bottle feeding52 (11)407 (89)2.54 (1.66–4.03)0.0002
Breast feeding28 (4)612 (96)
NNS+65 (9)672 (91)1.86 (1.04–3.36)0.0367
NNS−15 (4)347 (96)