The average fluoride level was 0.72 parts per million ppm. The US Public Health Service has established 0.7 to 1.2 ppm as the optimum concentration for fluoride in water for decay prevention.
Surveys indicate that children have increased their intake of carbonated beverages in recent years.
If this trend continues, it could be that fluoride concentrations in soft drinks would become an increasingly important factor in of total fluoride exposure. Because soft drinks may contain significant concentrations of fluoride, dental and medical practitioners may wish to consider this possible source of fluoride exposure when prescribing dietary fluoride supplements for children in nonfluoridated areas who consume substantial amounts of carbonated soft drinks.