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Table 1 Descriptive data of the measures for each breastfeeding group

From: Association of breastfeeding and three-dimensional dental arch relationships in primary dentition

Variables Pure breastfed for > 6 months Pure breastfed for ≤ 6 months Never breastfed
Overjet* ≤3.5 mm 169 (88.0%) 276 (85.2%) 187 (79.2%)
>3.5 mm 23 (12.0%) 48 (14.8%) 49 (20.8%)
Incisal relationship* Class I incisor 126 (65.6%) 199 (60.9%) 131 (55.3%)
Class II incisor 36 (18.8%) 83 (25.4%) 78 (32.9%)
Class III incisor 30 (15.6%) 45 (13.8%) 28 (11.8%)
Canine Relationship Class I canine 57 (35.8%) 76 (29.7%) 60 (30.3%)
Class II canine 89 (56.0%) 157 (61.3%) 123 (62.1%)
Class III canine 13 (8.2%) 23 (9.0%) 15 (7.6%)
Molar Relationship Flush 58 (43.6%) 97 (44.5%) 75 (46.3%)
Mesial step 53 (39.8%) 69 (31.7%) 47 (29.0%)
Distal step 22 (16.5%) 52 (23.9%) 40 (24.7%)
Anterior Crossbite Yes 25 (12.8%) 51 (15.5%) 26 (10.9%)
No 170 (87.2%) 279 (84.5%) 213 (89.1%)
Anterior overbite ≥1/2 131 (67.5%) 232 (70.9%) 170 (71.4%)
<1/2 63 (32.5%) 95 (29.1%) 68 (28.6%)
Anterior openbite Yes 6 (3.1%) 9 (2.7%) 7 (2.9%)
No 189 (96.9%) 320 (97.3%) 231 (97.1%)
Posterior Crossbite Yes 5 (2.6%) 5 (1.5%) 2 (0.8%)
No 190 (97.4%) 325 (98.5%) 237 (99.2%)
Intercanine width* 31.50 ± 2.09 mm 30.94 ± 1.91 mm 30.93 ± 2.05 mm
Intermolar width* 45.25 ± 2.49 mm 44.53 ± 2.41 mm 44.50 ± 2.71 mm
  1. *Variables showing significant difference (p < 0.05) among the breastfeeding groups.