Table 4.

Content of microelements in the intact and carious enamel of teeth (weight %, mean ± SD)

Elements	Intact teeth enamel tubule ( n  = 30)	Carious teeth enamel tubule ( n  = 30)
С	19.34 + −0.27	31.43 + −0.25
S	0.18 + −0.003	0.73 + −0.007
Cl	0.67 + −0.015	0.99 + −0.018
N	5.17 + −0.05	10.27 + −0.05
О	34.34 + −0.54	15.48 + −0.19
Na	0.62 + −0.03	0.5 + −0.01
P	19.02 + −0.41	14.21 + −0.25
Ca	31.97 + −0.60	25.04 + −0.31
Zn	0.17 + −0.009	0.15 + −0.001
К	-	0.41 + −0.05