Enamel, the outer layer of teeth, is the hardest substance in the human body.
The practice of using toothpaste dates back to ancient Egypt and Rome.
The average person spends 38.5 days brushing their teeth over their lifetime.
Snails have thousands of tiny teeth on their tongues to help them scrape food.
Sharks typically lose thousands of teeth in their lifetime. Some species can lose up to 30,000 teeth.
Elephants have six sets of molars throughout their lives, but once the last set wears out, they struggle to chew and may die from starvation.
Tooth enamel can’t repair itself like some other tissues in the body.
Carnivores usually have sharp, pointed teeth for tearing meat, while herbivores have flat teeth for grinding plants.
The fear of dentists is called dentophobia or odontophobia.
The teeth of rodents, like beavers and rats, grow continuously throughout their lives.
Narwhals have a single, spiral tusk that is actually an elongated tooth.
The tusks of walruses are elongated canine teeth that can grow up to 3 feet long.
Toothprints, like fingerprints, are unique to each individual.
The vampire bat has razor-sharp teeth specialized for cutting into the skin of its prey to feed on blood.
Crocodiles can regrow teeth up to 50 times in their lifetime.
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