Table. 3.
Table. 3.
Table 3
A frequency table of fluoride concentrations in Laos (unit: ppm)
Fluoride concentration (ppm)
Number of region
0.000
4
More than 0.000 and less than 0.050
6
More than 0.050 and less than 0.100
4
More than 0.100 and less than 0.150
3
0.150 or more
3
Int J Clin Prev Dent 2023;19:39-44
https://doi.org/10.15236/ijcpd.2023.19.3.39
© 2023 Int J Clin Prev Dent
