Rotten or decayed teeth are teeth that have become damaged by decay or infection. Signs include pain and marks or holes in tooth enamel. Decay usually results from inadequate oral hygiene, but certain ...

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Great question, Nicholas. It is important for us to know what’s inside teeth as they help us eat, and eating gives us the energy to do our daily activities. Our teeth are not just for chewing, though.

You only get 52 teeth in your lifetime: 20 baby teeth, followed by 32 adult teeth. It’s not like that for all animals. Some, like rodents, never replace their teeth. Others, like sharks, keep ...

Introduction. What is a vertebrate fossil? ; What are morphology, pathology, natural alterations, and cultural modifications? ; Why study morphology, pathology, natural alterations and cultural ...