Table 5.

Comparison of pre- and post-treatment SR of enamel samples.

Analysis Groups	SR (mean ± SD)		P
	Initial	Final
G7 - 35% HP S/F	0.18 ± 0.06	0.09 ± 0.08	0.1520 a
G8 - 35% HP FN	0.15 ± 0.05	0.10 ± 0.04	0.1102 a
G9 - 35% HP FFA	0.19 ± 0.06	0.19 ± 0.08	0.9651 a
G10 - 35% HP w/ Ca S/F	0.18 ± 0.05	0.14 ± 0.05	0.0994 a
G11 - 35% HP w/ Ca FN	0.16 ± 0.03	0.12 ± 0.07	0.3204 a
G12 - 35% HP w/ Ca FFA	0.19 ± 0.10	0.09 ± 0.07	0.1294 a

^aStudent’s t-test for paired samples.

SD, standard deviation.