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Indigenous tooth powders = covert lead poisoning?
Sapna Hegde1, A B Shubha, B Dinesh Rao
1Department of Paediatric Dentistry, Pacific Dental College and Hospital, Udaipur, Rajasthan, India.
Summary
Indigenous tooth powders in India contain high levels of lead, posing a risk of lead poisoning. This study measured lead concentrations in local tooth powders, revealing levels exceeding safety standards.
Area of Science:
- Environmental Health
- Toxicology
- Public Health
Background:
- Traditional tooth powders are widely used in India.
- Concerns exist regarding the safety of heavy metal contamination in these products.
- Lead exposure can lead to serious health issues.
Purpose of the Study:
- To quantify lead concentrations in indigenous tooth powders.
- To assess the potential health risks associated with their use.
Main Methods:
- Seven commercial and homemade tooth powders from Udaipur, Rajasthan, were collected.
- Lead content was determined using atomic absorption spectrophotometry.
Main Results:
- All tested tooth powders contained lead.
- Lead levels ranged from 21 to 82 parts per million (ppm).
- These levels exceed the Bureau of Indian Standards' maximum permissible limit of 20 ppm.
Conclusions:
- Indigenous tooth powders are a significant source of lead exposure.
- This overlooked source may contribute to lead poisoning in the population.
- Regulatory oversight and public awareness are crucial.
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