The document traces the evolution of dentures from 2500 BC to the modern era. Some of the earliest dentures were found in Mexico dating back to 2500 BC and were made of animal teeth. Later dentures included those made by Mayans using carved stones and seashells, Etruscans using gold bands to bind teeth together, and ancient Egyptians using gold and silver wire to secure tooth replacements. Over time, dentures were constructed from materials like wood, ivory, teeth from dead soldiers, vulcanite rubber, and today's acrylic dentures.