Dentist

Synopsis
When Finn's toothache gets too much to take, he has no choice but to visit the dentist, where he encounters an old foe.

Plot
The episode starts with Finn in the bathroom complaining about severe tooth pain and Jake inside of Finn's mouth investigating a tooth that is seriously diseased and black, telling Finn to go to the dentist. Finn refuses and asks Jake if he can fix the problem, to which Jake reluctantly touches the infected tooth, which in turn squishes and gives Finn intense pain. Jake then comes out of Finn's mouth and once again tells Finn he needs to go to the dentist and when Finn refuses to do so again, asks what Princess Bubblegum said after checking out his tooth. There is a flashback of when Princess Bubblegum checked out Finn's tooth and insisted he go get some medical attention, causing Finn to scream.

Major characters

 * Finn
 * Tiffany
 * Ants

Minor characters

 * Jake
 * Princess Bubblegum
 * Fly
 * Snail
 * Tree Trunks
 * Candy People
 * Sugar Cube
 * Chocoberry
 * Starchie
 * Chet
 * Jam Jam
 * Mr. Cream Puff
 * Marshmallow Kids

Songs
TBA

Trivia

 * The voice of television's Andy Daly is featured at multiple points throughout the episode (including the first talking ant and the voice on the ant intercom.)
 * The Finn Sword is used for the first time and is shown to have the past Finn trapped inside of it and talking to Finn.
 * The Ant Kingdom makes its first official appearance.
 * It reveals that Finn actually knows his full name given at birth.

Episode connections

 * Tiffany brings up Jake's criminal past once more and admits that if Finn never came into Jake's life, Jake would have become a powerful mob boss.
 * Tiffany's teeth had nearly rotted away due to the Baker's Shard heist in "One Last Job."
 * Finn refers to himself as his full name, "Finn Mertens," for the first time, not counting his alternate universe self in "Finn the Human."

Production notes

 * This is the first episode to premiere on a Friday.
 * This was the final episode of the 2014 Adventure Time: Corn-Ooo-Copia event.

Cultural references

 * One of the ant's names is, a type of ant.

Errors

 * At some points, Tiffany has a full set of teeth