Table 3.

Comparison of mean age at eruption (corrected age for preterm) of maxillary and mandibular teeth in term and preterm children

Primary teeth		Term (≥37 weeks), n = 53	Preterm (<37 weeks), n = 52	t-value	p-value *
		Age in months, mean ± SD
Maxilla	Central incisor	11.25 ± 1.99	12.39 ± 1.58	−3.24	0.002*
	Lateral incisor	13.10 ± 2.75	14.16 ± 1.54	−2.45	0.016*
	Canine	20.12 ± 2.98	20.93 ± 2.00	−1.63	0.106
	First molar	16.75 ± 2.54	17.93 ± 2.13	−2.57	0.012*
	Second molar	27.59 ± 3.38	30.49 ± 2.69	−4.88	<0.001*
Mandible	Central incisor	10.55 ± 1.87	11.46 ± 1.25	−2.93	0.004*
	Lateral incisor	15.97 ± 3.40	16.62 ± 2.17	−1.17	0.246
	Canine	21.10 ± 2.93	21.69 ± 2.94	−1.02	0.309
	First molar	16.87 ± 2.38	17.56 ± 3.02	−1.29	0.202
	Second molar	26.83 ± 3.18	28.57 ± 2.17	−3.28	0.001*

SD, standard deviation; *significant