Secondhand smoke leads to tooth decay in children

A study published in The BMJ claims that exposure to secondhand smoke at 4 months of age is associated with an increased risk of tooth decay at age 3 years. The research indicates that smoke may directly affect teeth and microorganisms in a number of ways, including inflammation of the oral membrane, damage to the salivary gland function and a decrease in serum vitamin C levels, as well as immune dysfunction.

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