Tooth World

The Tooth World is a microscopic world accidentally created by Lisa Simpson when she placed one of her lost teeth in a plastic tub with Buzz Cola and then added an electric shock.

History
Within days of its creation the world evolved from a society of cave-dwellers to a futuristic city with technology more advanced than current human developments. A scientist invented a Debigulator which was used to shrink Lisa down into the world. Since it was impossible to return Lisa to her original size, she quickly grew frustrated and started giving harsh orders to the people.

People
The inhabitants of the tooth world are human-like people with blue hair and skin. They speak English after hearing Lisa speak "through the ages". They worship Lisa as their God and Bart as the devil.