Table 1. Changes in pH during the three days of the demineralization cycles using the different biofilm models. Ss: Streptococcus sobrinus, Lc: Lactobacillus casei, and Sm: Streptococcus mutans.

Groups	pH
	Initial	24 h	48 h	72 h
Ss + Lc	6.2	3.7	3.7	3.7
Ss	6.2	4.8	4.7	3.9
Sm	6.3	5	4.5	4.3