Modern dentistry could learn a few lessons in bling from the Mayans - as they stuck colourful gemstones made of jade and turquoise on their teeth.
But the stones were not just for decoration. The adhesive used by the ancient people to affix the stones may have had therapeutic benefits, according to a recent study.
Research led by Gloria Hernández-Bolio from Cinvestav, , found that some of the sealants had antibacterial properties.
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