Archaeologists recreate 2,000-year-old dental dye in Vietnam

A team has recreated a black dye used on 2,000-year-old teeth.

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The fact

The skulls found in northern Vietnam contained iron and plant tannins.

This aesthetic practice, thought to be much older than previously believed, intrigues researchers.

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Auto-synthesis from 1 media source · identified on August 9, 2026