Table 4.

Calcium ion dissolution at day 2.

Varnish	Mean calcium ion concentration (mg/mL)	SD	Median	Range	Kruskal-Wallis	P value	Sig.
Control	185.4a	±0.5	185.0	185–186	86.44	<0.001⁎⁎	HS
NaF	64.6b	±0.4	64.8	64–65
CS-NPS	113.2c	±0.9	113.0	112–115
CSF-NPS	71.6d	±1.0	71.7	70–73
P	177.0e	±1.3	176.9	175–179
PF	129.1f	±2.6	129.5	125–133
M	126.9g	±3.1	127.3	120–131
MF	83.0h	±8.1	83.0	70–5
MFD	105.7c	±9.1	105.0	93–117

Kruskal-Wallis Test. Means with same superscript letters are not statistically significant at P ≤ 0.05.

^⁎⁎HS: Highly significant.