Why some people's teeth crack while others stay strong

By Chris Emery | Sun reporter
November 15, 2007

The closest thing China has to a tooth fairy might be Dwayne Arola, an engineering professor from the University of Maryland, Baltimore County who has a thing for Asian choppers.

Not long ago, Arola returned from a trip to Shanghai with a plastic lunch box containing a dozen prime specimens from Chinese dental patients - large, cavity-free wisdom teeth - destined to endure a regimen of abuse that he once reserved for aircraft parts.

How the Chinese molars hold up under Arola's stress tests may explain why Chinese teeth are more brittle than American teeth. Ultimately, that knowledge might lead to a dental Fountain of Youth: a high-tech process to make old teeth young again, and less prone to cracking under pressure.

Read the entire article on the Baltimore Sun web site


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