A new study has concluded there to be no significant association between bottled water consumption and tooth decay.
Bottled water consumption in the US has greatly increased in the past decade. Because the majority of commercial bottled water is low in fluoride, there is the potential for an increase in dental caries (tooth decay).
The results of the study showed that while bottled water users had significantly lower fluoride intakes, especially fluoride from water, there were no significant differences found in either permanent tooth caries or primary second molar caries.
Results for smooth surfaces differed somewhat from those for pit and fissure surfaces, but neither showed significant differences related to bottled water use.
While bottled water users had significantly lower fluoride intakes, this study found no conclusive evidence of an association with increased caries. The researchers concluded that further study is warranted, preferably using studies designed specifically to address this research question.
Source: National Center for Biotechnology Information