Teeth. From the outside, they probably don’t look like they’re all that complex. After all, they’re so small, it’s hard to imagine there's much going on inside of them. But believe it or not, these small but mighty bones are more complex than they look – and a lot different from the other bones in your body. Whether you’ve always wanted to know what goes on inside your teeth, or you never really thought about it before, knowing what’s going on inside your teeth can help you understand why it’s so important to take care of them, and better understand what’s going on in your dental procedures.