[Table/Fig-6]:

Correlation between Fluorosis Grade and IQ Grades (Overall)

DI Grade	IQ Grades
	Grade 1		Grade 2		Grade 3		Grade 4		Grade 5
	No.	%	No.	%	No.	%	No.	%	No.	%
Normal	6	2.5	184	76.3	50	20.7	1	0.4	0	0.0
Very Mild	0	0.0	10	10.4	79	82.3	6	6.3	1	1.0
Mild	0	0.0	2	4.5	29	65.9	7	15.9	6	13.6
Moderate	0	0.0	0	0.0	15	34.9	16	37.2	12	27.9
Severe	0	0.0	0	0.0	0	0.0	0	0.0	5	100.0