[Table/Fig-2]:

Comparison of fluoride levels in various other studies

S. NO	Place	Author	Year	Reported range of fluoride level in mg/L
1	Canada [8]	Weinberger SJ.	1991	0.06–40
2	Australia [10]	Conchrane NJ et al.,	2006	0.001–01
3	Northern Greece [9]	Ahiropoulos V	2006	0.05-4.80
4	Iran [19]	Dobaradaran S et al.,	2008	0.00–059
5	Saudi Arabia [23]	Aldrees AM et al.,	2010	0.50-0.83
6	Babli, Iraq [24]	Mohammad Hashim Matllob	2011	0.058-0.146
7	Agra, India [22]	Guptha P	2012	0.45-0.86
8	Bushehr, Iran [18]	Nabipour I	2013	0.07 and 0.31
9	Najaf and Karbala, Iraq [25]	Fard Mahvi Hosseini	2014	0.13 to 0.50
10	Chennai, India	Sujatha et al.,	Present study	0.27 to 0.59