Bite Me! Ultimate Tooth Development Quiz

Just like deciduous trees, which lose their leaves and grow new ones, deciduous teeth are only temporary.

When permanent teeth start to grow in, they press down on the roots of the deciduous teeth, which then dissolve. The remnants of the roots are absorbed by the new teeth.

Baby teeth usually start to fall out when you're about 6, starting with the incisors.

Most kids are about 12 when they lose their last deciduous tooth.

Even though it takes months for deciduous teeth to begin erupting after you're born, and years for the adult teeth to come in, they all start to form by the 20th week in utero.

Just like a volcano, your teeth erupt. But thankfully, there's no lava involved!

Mamelons are ridges on teeth that have just come in. They'll gradually wear away on their own.

Third molars are also known as wisdom teeth because you're (presumably) a wiser person than you were when your other permanent teeth arrived.

Many cultures have their own names for wisdom teeth. The Thai know them as huddling teeth because they crowd your other teeth, while the Koreans refer to them as love teeth due to their appearance sometimes coinciding with the pain of crushes and first love.

Researchers think that wisdom teeth are on the way out, evolutionarily speaking. We had more use for them back when our jaws were longer, and therefore had room for an extra set. There may come a time when those with wisdom teeth are much rarer than those without.

Impaction also refers to wisdom teeth that are encased in bone, or that grow in at an abnormal angle.

There's really no rhyme or reason to how many wisdom teeth a person might get, if any. Some people may get as many as five!

It might sound a bit early, but consulting an orthodontist when your child is about 7 can help identify problems before they get out of hand.

Though it takes longer to shift adult teeth, using braces to treat crooked teeth in adults is very common.

Malocclusion can mean a misaligned jaw, crowded teeth or any other abnormality of the bite.

Thumb-sucking, injury and a number of other factors, including genetics, can contribute to malocclusion.

Shark scales, also called dermal denticles, have a pulp cavity, blood vessels, and dentine -- just like your teeth.

The top and bottom jaws each have 14 teeth chompers. No wonder it gets crowded when the wisdom teeth come in!

Anodontia is an extremely rare genetic abnormality that results in a complete lack of teeth.

Nearly 4 million people in America undergo orthodontic treatment, and 3 out of 4 of those patients are younger than 18.