Table 3. Eruption times of first primary/permanent teeth and socioeconomic status (SES) .

SES	N	First eruption timing
		Primary	Permanent
Lower	56	8.1±3.7	83.9±15.1
Medium	178	7.8±3.2	85.4±15.5
Upper	33	7.0±2.2	88.4±17.4
P value		0.67	0.75