Table 2.

Comparison of saliva buffering capacity (SBC) for caries-free and S-ECC group

		Group 1 Caries free N (%)	Group 2 S-ECC N (%)	Total N (%)	Chi-square test p-value
Buffering capacity	High [above pH 5.5]	132 [66.0]	40 [20.0]	172 [43.0]	0.000 HS
	Medium [from pH 5.5 to 4.5]	44 [22.0]	96 [48.0]	140 [35.0]
	Low [below pH 4.5]	24 [12.0]	64 [32.0]	88 [22.0]
Total		200 [100]	200 [100]	400 [100]