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And what, what?

And what,what,what?

It means they have yellow teeth. YDI for: smoking/not brushing your teeth.

You know, they invented something a while back, what was it called again?.....Oh yeah, that's right, toothpaste. You should really look into it.

It means they don't use tooth whiteners or toothpaste containing it, which really aren't that great for your teeth anyway. It means they don't have any of the fluorescent additives that are i whiteners that will glow under blacklight. It doesn't mean their teeth are yellow or unclean. The cleanest and whitest teeth in the world aren't going to glow under blacklight if there no fluorescent additive from whiteners on them. If anything, it means they have healthier teeth than their friends because they're not stripping the enamel off their teeth.

floss? or stop eating black jelly beans.

They'd obviously swallowed a lot of cum that day ;)

nice

whitening toothpaste doesn't work. It's not on your teeth long enough to whiten them.

#71 you don't have to be such a douche about it

#79 is totally right! It's better when your teeth don't glow under UV light...

#56, I brush 3 times a day (once after lunch) and have yellow teeth because of tea and coffee. You don't have to smoke not have whitened teeth

Lol YDI

Crest Whitening Stripes. Get them.

Why? So his teeth can glow unnaturally on the rare occasion he goes Cosmic Bowling as well?

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No. Teeth don't glow under black light, regardless of how clean they are. It's the additives in tooth whitener that glows. Not the teeth, so yes, it's unnatural.

Trust me there is less ( norm ) then youd believe. This world is very weird. However the norm is said to be morally correct.

That's true, I have a backlight and got curious and did it to myself after reading this and nothing happened. My teeth aren't yellow, just average.

Coffee stains?

their teeth were glowing BECAUSE they used teeth whitening agents.... Not because they were naturally white.

Um, I don't use whitening agents and my teeth glow in a blacklight. Maybe the "whitening agent" known as toothpaste is the culprit..still..I think I'll have my unnaturally white toothpaste smile than non glowing yellow teeth

I just looked this up so I can end this discussion. Enamel doesn't glow naturally, but whitening agents glow blue under a black light.

Teeth glow green under black light when they are DIRTY. NOT CLEAN jesus has anyone been to a rave?

Actually, white teeth aren't normal, our ancestors didn't have white teeth.

@90 our ancestors didn't live more than 15 years either, is that normal today? whether our ancestors had clean teeth or not is irrelevant. modern people should. neither FYL or YDI. justbrushbetter.

It's because your mouth is a Black Hole.

OP has bonded teeth, hopefully.... Else YDI for not scraping the shit off your teeth at least occasionally.

It means all your friends use whitening strips.

And how did op tell that his teeth wasn't glowing? can u see ur own teeth? But that could just mean that the toothpaste they use contains whitening which make ur teeth whiter

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Just because her/his teeth aren't pearly white doesn't mean she isn't taking care of them. I had bad seizures when I was little and the medication permanatly messed up my teeth color, even though I brush and floss every day!

yeah, some people have a natural grey tint to their teeth as well. that, no matter how killer your hygiene routine is... and as pp said, anti seizure medication and some others can cause the enamel to weaken, causing a less than wonderful color to show through

Only fake teeth glow in a black light. You were the only one there with real teeth.

psh...my teeth glow in black light, and i don't use any fake teeth or whitening-strips. i just brush my teeth well. anyway, your teeth not being white might just be genetic.

my teeth are not fake at all, idont use white strips & mine glow vibrantly in black light

You've got it backwards. Fake teeth don't glow, real ones do

Most toothpastes contain some whitener though the package doesn't list it. OP could just use healthier toothpaste (some biological for example). Teeth don't glow under black light without whiteners. It's the same with clothing.

Time to meet Mr. Toothbrush!

You has mowldy rocks :3