[[quoteright:264:[[Film/{{Moonraker}} http://static.tvtropes.org/pmwiki/pub/images/jawsbond_5578.jpg]]]]
[[caption-width-right:264:A smile to disturb airport security...]]

A character smiles, and it is revealed that his or her teeth are...disturbing.

This trope manifests in myriad ways, from teeth being all askew to being rotten, from being a mouthful of sharp fangs to metallic prostheses, and sometimes even there not being any teeth at all (cute in an infant, disturbing in an adult).

This trope works for a variety of reasons. One of the biggest is that trauma to the teeth is a PrimalFear for most people. Also, teeth are very much associated with youth, vigor and hygiene, so nasty teeth instantly give an image of sickness, dirtiness and malevolence. Sharp, fanged teeth are an universal identifier of a predator, too, so anyone who sees fangs or a maw full of sharp teeth will instantly feel threatened.

Can be an indicator of an evil character, although good ones aren't disqualified.

Related to MoreTeethThanTheOsmondFamily and FangsAreEvil.

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!!Examples:

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[[folder:Anime and Manga]]
* Arlong and Hody Jones from ''Manga/OnePiece''. Justified as they're both shark fishmen (a sawshark and a great white shark respectively).
* Viral from ''Anime/TengenToppaGurrenLagann''.
* Grell Sutcliff from ''Manga/BlackButler''.
* Gyro Zeppelli in ''[[Manga/JoJosBizarreAdventure Steel Ball Run]]'' is a rare good guy example. His teeth are metallic and have "Go! Go! Zeppelli!" engraved on them. Most of the time his teeth are drawn normally, but when he throws a mischievous smile, the engravings can be seen, which can be a little jarring.
* The titular character of ''Manga/SoulEater'' and Giriko both have mouths entirely full of pointed teeth, [[UnusuallyUninterestingSight neither of which is ever commented on.]]
* Emperor Ganishka from ''{{Berserk}}'' looks like an Indian Santa Claus with a bear trap for a mouth.
** Protagonist Guts goes into this territory himself [[SlasherSmile whenever he is]] [[TechnicallyASmile baring his teeth.]]
* Rin Matsuoka from {{Anime/Free}} has shark teeth for some reason (as a child he only had CuteLittleFangs). It's because his representative animal in the series is a shark, but in universe no explanation is given.
* Moral from ''{{Hamatora}}'' has shark-like teeth.
* Nanana from ''Manga/{{Bleach}}'' has regular-shaped teeth, but they're colored black and gold (in a checkered pattern).
* ''Webcomic/{{Kubera}}'': Despite looking almost entirely human, Yuta actually has rows on rows of teeth in his mouth. We get an even clearer picture when we see [[spoiler:Yuta hide Leez in his sura-form mouth to protect her from a hail of energy blasts. After their attacker leaves, Yuta anxiously wants Leez to come out but she's remarkably casual about getting stuffed into a mouth full of sharp, pointed teeth. She even cuts herself while climbing out but manages to keep her reaction to mild surprise/interest, going to show how hard she's trying to show she trusts her friend.]]
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[[folder:Comicbooks]]
* In ''ComicBook/BatmanTheDarkKnightReturns'' the leader of the Mutant Gang has filed his teeth to points, and uses them to rip out the throats of the mayor and his aides (off panel).
** For that matter, this trope is also played with regarding SelfDemonstrating/TheJoker and his teeth - depending on the artist, his teeth can be a nasty yellowed color (implying he probably doesn't brush them), drawn unevenly, drawn longer than or as being more prominent than normal, [[MoreTeethThanTheOsmondFamily share space with FAR too many teeth for a normal human being]], or a combination of more than one of these.
* Gargamel in ''ComicBook/TheSmurfs'' mostly appears with only one top tooth in his mouth in most comic book and cartoon show appearances.
* SpiderMan villain [[EvilAlbino Tombstone]] has pointed teeth, because he purposely filed them that way to make himself look scary.
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[[folder:Films -- Animated]]
* Sharpteeth in ''WesternAnimation/TheLandBeforeTime''.
* Scar, at least once, in ''Disney/TheLionKing''. The hyenas too. "Yes our teeth and ambitions are bared!"
* Jafar from ''Disney/{{Aladdin}}'', in his old man disguise.
* In ''Disney/BeautyAndTheBeast'', one of the servants suggests that the Beast should be nicer to Belle. The Beast tries to smile, but realizes he has MoreTeethThanTheOsmondFamily.
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[[folder:Films -- Live-Action]]
* ''Film/JamesBond'':
** Jaws, pictured above, from ''Film/TheSpyWhoLovedMe'' and ''Film/{{Moonraker}}''.
** Silva from ''Film/{{Skyfall}}''. [[spoiler:His dentures hide the fact that his real teeth have been [[BodyHorror reduced to rotten nubs]] as a result of a defective CyanidePill.]]
* Jack has one for a moment in ''Film/FightClub'', when he smiles at a fellow coworker during a meeting and his mouth is a bloody mess.
* ''[[ShanghaiNoon Shanghai Knights]]'': During a chase scene, Roy runs into a demure-looking street vendor and starts putting the moves on her... then she smiles, revealing hideous rotting BritishTeeth. He understandably panics.
* In ''Film/{{Coneheads}}'', the titular characters have this until they fix their teeth to blend better amongst humans: not only are their teeth shark-like, when they open their mouth wide, it shows endless rows of them.
* Seth Brundle in Creator/DavidCronenberg's remake of ''TheFly'' slowly loses his teeth as the transformation progresses, making him look more inhuman and threatening.
* ''Film/TheLordOfTheRings'':
** When the MouthOfSauron appears, his helmet covers up every part of his face except for his mouth, which often grins with elongated, pointy teeth covered in black ichor. Eugh.
** Less pronounced, but if his slightly insulting behavior at the beginning of the first movie hasn't suggested to you that [[spoiler:Saruman]] might be a bad guy, his rather filthy teeth (compared to Gandalf's fairly healthy ones) really ought to have.
*** They are, in fact, [[ChristopherLee Christopher Lee's]] [[BritishTeeth natural set]], but they are made more pronounced by making his otherwise white beard dark around his mouth.
* Winslow Leach in ''Film/PhantomOfTheParadise'' had his teeth replaced with sharp stainless steel teeth while he was in prison.
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[[folder:Literature]]
* Pennywise in ''Literature/{{It}}'' can morph his teeth into a fanged maw.
* Arno Blunt, TheDragon from ''Literature/ArtemisFowl and the Eternity Code''. After getting his teeth shattered early on in the book, he gets a number of interesting - and somewhat disturbing - prostheses.
* In Literature/{{Discworld}}, Cohen the Barbarian has dentures made out of diamonds. In the Disc, diamond teeth are associated with trolls, so anyone who sees Cohen's is understandably disturbed.
* Apparently Randall Flagg in TheStand. "There were worse things than death. There were teeth." (illustrated rather well with a big lamprey-mouth sketch in the comic.)
* Every time Vlad in ''Literature/CountAndCountess'' is about to take a bite out of someone, he grins. The glimpse of artificially sharpened teeth serves as the victim's first and last warning.
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[[folder:Music Videos]]
* One of the last mouth close-up shots of the Music/WeirdAlYankovic's "Bedrock Anthem" (a parody of RedHotChiliPeppers' "Give It Away") has dinosaur teeth. A memorable, and hilarious left-field gross-out moment.
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[[folder:Web Comics]]
* ''Webcomic/PennyArcade'' combines it with GrossUpCloseUp to illustrate Gabe's [[http://www.penny-arcade.com/comic/2011/05/18/the-maw less-than-stellar mouth hygiene]] (how he doesn't realize he has a rabid badger living inside his mouth, we may never know).
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[[folder:Western Animation]]
* TheGrinch.
* Ren in ''WesternAnimation/RenAndStimpy''. Especially in "Ren's Toothache", where he refuses to brush his teeth and they eventually rot and fall off.
* In both ''WesternAnimation/TimeSquad'' and ''HudsonHawk'', this is why Leonardo da Vinci ends up painting the Mona Lisa with a closed-mouth smile.
* ''WesternAnimation/TheSimpsons'': [[MemeticMutation Dental Plan]].
* In ''WesternAnimation/MyLittlePonyFriendshipIsMagic'' [[MadGod Nightmare Moon]] has [[FangsAreEvil fangs]]...which tend to [[CaptainObvious look slightly creepy]] on a horse.
* [[spoiler: The Terras]] in {{WesternAnimation/Motorcity}}.
* ''WesternAnimation/TheSmurfsTheLegendOfSmurfyHollow'' gives us a nice close-up view of the few teeth that are left in Gargamel's mouth.
* SelfDemonstrating/TheJoker, as mentioned above, got these in ''WesternAnimation/TheBatman'', which gave him a gaping mouthful of bright yellow teeth with jigsaw-like protrusions and holes, causing them to slot together in a highly unnatural fashion.
** The same series also gives these to Oswald Cobblepot, the Penguin, with a frankly shark-like array of jagged, pointed fangs.
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