Table 3.

Number and percentage of sound teeth per group at the end of the study using visual examination.

Group	Name	Number of decalcified teeth	Number of sound teeth	Percent of sound teeth
First	Positive control	20	0	0
Second	Negative control	0	20	100
Third	100% fre-in-sol	2	18	90
Fourth	50% fre-in-sol	3	17	85
Fifth	100% ferotonic	3	17	85
Sixth	50% ferotonic	3	17	85
Seventh	100% feromin	3	17	85
Eighth	50% feromin	2	18	90
Ninth	100% ferose	16	4	20
Tenth	50% ferose	20	0	0
Overall		72	128	64