Why Humans Can't Regrow Teeth
ฝัง
- เผยแพร่เมื่อ 6 ก.ย. 2024
- Humans can’t grow new teeth. But we’re not alone. Most mammals can’t. But many reptiles and fish can grow hundreds, or even thousands of new teeth in a lifetime. The reason has to do with how reptiles and mammals evolved differently over 300 million years ago.
Following is a transcript of the video:
Humans need dentists. It’s a fact. In 2017 alone, Americans spent $124 billion on dental visits. And an estimated 90% of adults in the US have fillings.
But many animals don’t have this problem. Because they can regrow their teeth replacing old, damaged ones with brand new pearly whites.
Wouldn’t it be great if you could do that? Well, there’s actually an important trade off for this nuisance.
Only a handful of mammals can regrow teeth multiple times, compared to the 50,000 species of reptiles and fish. Take geckos, for example, who will replace all 100 teeth, or so, every 3 to 4 months. And since geckos can live for 6 to 10 years, they’ll grow anywhere from 1,800 to 4,000 teeth in a lifetime! It’s all thanks to a special type of cell in their gums, called stem cells.
Stem cells are handy because they can morph into different cells when needed. Like tooth stem cells to build new teeth. Humans have these stem cells when we’re younger. But after our adult teeth grow in, the stem cells die and disappear.
To understand why, let’s take a journey back in time. To about 320 million years ago, when mammals and reptiles split off. In addition to the many obvious differences another change that eventually emerged was tooth shape. Reptiles, for example, are what’s called generalists. Meaning they eat the animals they can get their teeth on. And for that, they needed teeth with the same size and shape, to keep prey from escaping their mouths. Mammals, on the other hand, developed more specific diets. Like grazers who only eat grass and hunters who rip flesh from their kills. As a result, mammals evolved different shaped teeth for different purposes. And it’s this difference, that could also explain why most mammals can’t regrow more teeth.
Now, let’s say you could regrow your molars multiple times, for example. It’s important that the top and bottoms sets match up. Otherwise, they can’t grind up food as efficiently. It sounds good in principle, but with each new set, there’s a risk that the regrown teeth won’t line up. So the leading theory is that adult humans can’t regrow our teeth because it was better for survival to only grow one, well-aligned adult set.
However, if you still wish you could regrow a tooth, there may be a way in the future. Using lasers and drugs, scientists have helped rats and mice regrow damaged tissue in cavity-ridden teeth. With the idea that if you can regrow tooth tissue, you can eventually regrow entire teeth.
Though no human testing has been done, yet. So continue to see your dentist! At least for the time being.
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Why Humans Can't Regrow Teeth
Don’t worry guys this glitch will get fixed in the next patch!
But itll take 1000 years to patch it in
Knowing our luck, it'll be in the form of microtransactions.
tierzoo
Zwizard247 nah, they will certainly come out with some sort of drug to do the job. Besides you can still implant porcelain teeth, which look exactly like the real deal, you never have to take them off and they never get caries as well, which means permanent.
Well as long as i can try it out in the PTB FIRST!
This video is sponsored by the dental industry
IQ 200
One out of five recommended
Maybe it was so you take better care of your teeth... next time I see you guys better not have any cereal stuck in between....
@@SheikhMohammedIlham lol
-4 Subscribers with a hammer addiction im your 700th like
Gecko are rich af. They abuse the tooth fairy
sharks too
The tooth fairy treasury department has banned gecko and other reptilian teeth a few 65 million years ago. A lot of reptilians were abusing the system.
Chris G lol
Chris G haha
i hate geckos
Someone needs to do research on keeping those stem cells from dying.
Why not u
It won't be good for us tbh, look at 2:15
@@Burak-ls5yd I think it would be an ideal project for a DDS/PHD lab. I'm premed so I don't know if I could. I am fascinated by cell biology though
@@barbra962 true, but if we're only regrowing one at a time we could probably deal woth the alignment problem
@@thefenerbahcesk4156 braces are expensive, and last for about 2 years
So its expensive and time consuming, so nothing good came out of it
J.K. Rowling reveals that humans can actually regrow teeth.
(^-^)
/>🏆Comment Oscar!
J.K Rowling reveals your momma gay
Someone explain this reference to me
and says that your stem cells for your teeth and gums r gay
SeouL JK always says stupid shit about the Harry Potter franchise in order to stay relevant. (Ex: Dumbeldore was gay despite not showing signs or anything in the books and movies)
The real question is...
*Do dentists need dentist?*
Yep. Dentist here and I need my dentist every 6 months or so.
Neko Tachi r/wooosh
yes
@@uriah9645 why it's a real question
@@AllohaAllohaSnackbar why dont you just look at the mirror the fix your shit
"With each new set theres a risk that the new teeth wont line up "
Most people: *teeth grow in crooked anyways*
Thing is if the new teeth grew in entire sets at a time, they could actually become less crooked than the originals.
Not only that, that’s why we have braces and we grew our first and second set just fine. They are full of shit because how the hell do they know that they grow in like that if THEY SUPPOSEDLY HAVEN’TDONE IT. Liars
@@deraldsjaysonify thats a terrible god damn 100% true point ,...yeah man ...now i lost hope in scientists and reportersssssss!. by the way thanks for your pov
Our teeth have become more crooked because we don't use them or our jaws enough. Our food is waaaaay softer than what our teeth or mouth evolved for
@@katwilliams2950 no, because we dont get 10 babies anymore and let the worst 8 of them die. thats evolution.
Somebody needs to call god and report this design flaw.
Exactly! Yet some still promote intelligent design.
Hair Lost, teeth lost, lost of arm or foot. It's horrible.
Design flaws in the body could possibly mean that our bodies are not designed by a loving creator who values humans more than animals (or more than anything else he created). That's why I question the intelligent design theory.
I mean the devs have to balance it out. Otherwise, the humans will be more op than they are now. We'll see on the following patch what they will change though
Good one. another one is mosquitoes, science suggest, if they all were wiped out, nothing would happen. they exist to annoy us. nothing more.
In Russia, teeth grows human
Its the last of us we are last of the ppl who keep the meme alive
Sounds like there might be collusion with teeth and Russian Obligarchs.
I will contact Robert Muller.
.
What do you mean?
Russia sucks
Tooth falls out, BAM you just have birth. Imagine that's how we made life lmfao
Nice try 9/10 dentists that support Colgate.
Dentists gotta put bread on the table too ya know..
I thought it was Oral B
wait is colgate that bad
I use Crest jokes on you
Just put flex tape on the teeth that you already have
AS SEEN ON TV
That could actually harm your teeth because it's harder to clean and harder to eat, which can lead to tooth decay and other diseases
maria fe woosh
If someone discovers a way to grow teeth from stem cells that won't turn into cancer, I'm sure that person will be tracked down and be eliminated. Because you know, business
That's the dental industry for ya.
send bitcoin assassins
Alzheimers drug Tideglusib regrowths teeth
Yep
Yeah, but the problem is that millions of people have teeth problems, either cavities or missing teeth or crown or root canals. So it would be nice that if you lost a tooth a new tooth would regrow in its place.
I mean, it sounds like a pretty simple request. So for the love of God please let our teeth regrow if we loose a tooth.
I agree
well guess what its now a treatment thats in testing but it works
You can't regrow teeth because you don't believe that it's possible, but if you have faith, anything is possible...
At night 2:33 am i am not going to concern about why my teeth is not growing!
+5:30 UTC, are you Chinese?
@@gustopher6500 no i am not 😅let it be a secret
I can easily regrow my teeth but I don’t lose any anyway
ok
you again
your pic matches your comment perfectly, its like you're showing off your teeth to other measly humans 😂
Is it true you don't have an asshole?
Just nuke the dentist
What???? So a single tooth is better for chewing than an unaligned pair?
Logic can only dictate, but you gotta pick up the paste..
😂😂😂
Yeah a set of teeth that grows in unaligned and haphazardly could have been very dangerous back then. Just think of all the pain and problems wisdom teeth can cause growing in.
Unaligned pair may sound simple but it can cause various problems
Think about when your car has a misaligned axle, can it drive as well? Extrapolate that into your mouth and think about how that damage accumulates over time
It's obviously because of the tooth fairy's magic
So we don’t abuse the system
Tooth fairy doesn't exist
@@bluefirewolf1991 You missed the joke smh
@@bluefirewolf1991 nah it does though it only works when youre 8
While there are advantages to having non-replacable teeth, we humans stopped getting those advantages when we learned to use stone tools and fire to prepare and cook food. Notably, this is also why we often need wisdom teeth removed; Once we stopped needing our jaws to survive, they shrunk, and now they sometimes get a little too small for all the teeth in them.
I have one tooth that had grown for the third time when I was under 10. It is half size. My dentist said that it is impossible, yet it happened.
I am only 17 years old, but I broke my front teeth. Thanks to the video of your team, it really help and get me hope for the future. 😔🙏🙏🙏💕
Calm down. Your tooth broke. You shouldn't lose hope for the future over some broken teeth
@@notanarsonist7348 It was his front teeth. And he said he's not losing hope in the future.
No, you can regrow a permanent tooth, but it's extremely unlikely. I had a dead permanent tooth I need to get removed before getting braces. For a couple of years, it was just a boney gum at the back of my right upper jaw. Then a few months ago something bone-like starts protruding. At first, I thought it was bone, but it was a tooth. Granted it's kinda short, but its still a tooth. I regrew a tooth
what was your age thats time
I had 2 of my premolars extracted for braces and I decided to stop my treatment midway bevause retracting my jaw back and closing space fucked up my jaw joint. So I’m praying so hard that I can regrow my 2 premolars back :’)
Maybe that could be ur wisdom tooth tho
I heard that human teeth can only regrow twice.
1. Your baby tooth breaks to form mature one
2. Your child teeth breaks to form a mature adulthood teeth. After that if it breaks, you’re done.
Why would they even do "teeth regrowth" experiments on rats, who already have teeth that keep growing?
Because animal right groups would burn down their labs if they used a larger mammal
incisors in rats are evergrowing not their molars.
I saw the title and I thought it said “why humans can’t grow teeth”
It's really fascinating how human nature can create teeth (enamel), the hardest substance in your body. It's just wildly complex. Look after your teeth!
mike8055 it’s not really that hard I chipped most of my teeth
I'd rather get the shark general teeth than these risky one-knock human teeth
1:01 anyone else find this extremely satisfying?
SEBASTIAN Kowalik how dare you >:(
I wish I could regrow my tooth 🦷
*one well aligned adult set*
Girl in outro has braces*
Sound legit
"Using lasers and drugs" is the best thing I've ever heard in my life
Watch at 1.25x so he actually sounds like hes speaking normally
Thank you
thank you
There are tumors that can grow teeth, but my gums can’t regrow adult teeth? Okay.
Yes! Teratoma tumors, I'm surprised they didn't mentioned in the video.
Upgrade us in the next lab run and it will all be fixed!
Who even needs teeth, true gamers grind their teeth on Doritos and douse them in Mountain Dew
When you watched this video cuz your dental hygiene is in a way terrible
Dear Human Teeth,
Release v2.0 soon, we're eagerly waiting! 😂
If you ask me, we have nobody to blame but ourselves when our teeth become bad. However, we should not be shamed. Dental care should be fully covered because my taxes pay for it. We made mistake of not taking care of our teeth but we should not be shamed for it. The bottom line is, depression is a slow killer. It brings us down to the point where all we wanna do is stay in bed and not brush our teeth, and even equally disgusting, not shower. It's a symptom of depression, we don't need shamed for it because we already knew it was going to happen.
Ever heard of Ramien Nagel? He wrote a book that poor people love and dentists hate.
It's not about regrowing teeth, but reversing cavities.
1:13 That is not exactly true. We do have stem cells in our teeth as adults. "Researchers knew that the soft “tooth pulp” in the center of teeth contained a small population of mesenchymal stem cells, the type of stem cell that can mature into teeth, bones, and cartilage. But no one had conclusively determined where these stem cells came from. Adameyko figured that if he could trace their development, he might be able to recreate the process in the lab, thereby offering a new way of growing stem cells for tissue regeneration.
He and his and colleagues were already studying glial cells, which support and surround neurons that wind through the mouth and gums and help transmit signals of pain from the teeth to the brain. When they added fluorescent labels to a set of glial cells in mice, they saw that over time, some of them migrated away from neurons in the gums toward the inside of teeth, where they transformed into mesenchymal stem cells. Eventually, the same cells matured into tooth cells, the team reported this week in Nature."
The reason we cannot regenerate dentin after a large cavity is because the rate of decay far outpaces the rate or repair; probably for the same evolutionary reason mentioned in this video.
www.sciencemag.org/news/2014/07/unexpected-stem-cell-factories-found-inside-teeth
I had a friend actually grew teeth on same spot over 5 times. There are exceptions.
How
@@seemithakur4730 maybe because his stem cells didnt die idk
2:38 “However if you still wish you could regrow a tooth, there may be a way in the future. Using *lasers and drugs* …”
*Sounds like humans alright…*
Humans are sooo used to eating soft & warm food that after few "millions" years, Humans will have no teeth to chew.
Question to ask what were wisdom teeth used for?
Imagine being an adult, You still have ur baby teeth, can u remove that teeth, and will a permanent teeth grow after?
anyone constantly scratching their teeth while watching this? no? just me?
Is that how animals teeth are always white even if they don’t brush?
What about selective prompting regrowth of one tooth at a time when it has deep fillings and wear braces to realign as you go?
Just got a root canal and now this video LOL
I wish I was a gecko like the Geico gecko. That way I can save all the time on car insurance. At least I don’t have any fillings
Humans may not be able to, But I can!(I think) TAKE THAT DENTISTS!!
The eel We did take that and also we’ll take your money now, see you in 6 months for a denture when you fail miserably....
I regrow teeth all the time! Sure, it's just in my dreams after yet another stress-dream involving tooth-loss, but details.
I'm down for experimenting, I ruined my teeths :(
Greetings from Norway, in my area there was a man who grew a full set of new teeth in the age of seventyfive! No,it is not a tell tale story,my father knew this man,they lived in the same village and my father was about fifteen years old.
How can I achieve this brother
Well, I guess it can only regrow once. When it is a milk teeth, then you take it off when it moves, then it grows into a permanent tooth. If a permanent tooth falls off, then it won't grow anymore.
In the future we should have "Why humans can regrow teeth" cause that's being worked on. 😍
Because we usually died before having serious issues with our teeth.
Or maybe because we didnt start eating junk food untill this last century?
It's probably the fact that the food we eat now has more refined sugar etc....
This video was very misleading due to poor research and over simplifying.
An example of the bad research comes to show at 1:03-1:20, where the host claims, humans can not regrow teeth due to the stem cells dying.
in reality teeth arises from a complex interaction between 2 of the 3 germ layers (stem cell layers), the mesenchymal layer and the ectodermal layer.
The mesenchymal layer gives rise to the dentin, whereas the ectodermal layer gives rise to the enamel. later on the development, all the ameloblasts(enamel producing cells) die due to a process called apoptosis. Although some odontoblasts (dentin producing cells) stays in the pulp of the tooth, and help with the regrowth of some dentine, it does not regrow everything and the process is very slow which leads me to my next point.
at 2:44 the claim is simplified so much, that it does not paint the right picture.
The laser- and drug treatments only speed up the normal growth of the dentin, but it does nothing to repair the enamel.
with all that being said, they at least got something right by saying the complexity of teeth limit their ability to regrow.
- Edit children can not regrow teeth, all the teeth we have are produced during embryogenesis, this includes the primary and secondary sets of teeth.
Regrow teeth? No
Grow teeth? Yes, teratoma tumors.
I swear I’ve lost one tooth twice and it grew back
Why does the narrator sound like Austin McConnell?
apperently we can grow new teeth or regen them but it going to cost us $10.000 per tooth...in america only.
Where in America
“With lasers and drugs”
Well shit man that’s all ya needed to say, I’m interested
be prepared for hot af lasers
I wish in the future they can make that drugs that can regrow teeth, hair and even regenerate any cut parts of the body or even organ
theres a reason why (the regrow teeth invention hasn't been released)
because there would be no need for dentist anymore!!!
think about it , if such a drug/or whatever that activated that process again..why would you need a dentist, in a short time that problem tooth will be new again.
i wouldnt be surprised if it already out yet just locked up in vault somewhere..dentist board probably pays someone/the inventor to keep off the market. cause again if such a thing existed, that whole profession be gone..and of course they cant have that.
do i know this for sure..No..but cmon its not that far of a stretch to believe..and makes sense
same thing for the others ailmetns..no more hair specialist , Drs..if a pill could restore it all you wouldnt need it.
ever play a video game? when have you ever seen your game character go to the dr. to heal? there was magic drug in the games playthru that healed you along the way..and you were restored ..if that was reallife there be no hospitals..there just be that wonder pill in your supermarket section.
This doesn't make any sense. If you can regrow your teeth once in your life and they match perfectly, there is in principle no problem for the body to again regrow new set that would match.
Maybe regrowing all teeth continuously like for those reptiles is a bit exaggerated and not very useful. One thing is for sure though, being able to regrow and repair teeth’s tissue would be magical to have. That way there wouldn’t be any need to grow back entire new teeth all the time, you would just repair the pre-existing ones.
My dad had all his teeth took out through gum disease but had a small tooth regrow on the bottom and he said it cut all his food with that and the top dentures. He was real quick at eating aswell
Human: help! Im losing teeth and i cant regrow em
Shark: infiniTEETH!
Be pretty cool if teeth could grow kinda like bones when they are broken or damaged
*_Tooth Fairy_*_ has left the chat_
When I was a kid: *Oh mom, my teeth fell out!*
Mom: *Don't worry, it'll grow another one.*
After months of not noticing it: *Oh, look! Another teeth!*
Aapki kitni age ma aap ka teeth tuta tha
If dentist can use bracelet to straighten crooked teeth it shouldn't be impossible to set a regrown teeth to match it's parallel on the upper/lower jaw ...
I like the idea that if your body looses a tooth, then another tooth grows back in. Why is this so difficult.......... I'm looking at you evolution and natural selection. If something happens and you loose a tooth then your body should grow another one in its place. I mean, this would fix all of dentistry. No more root canals, if your tooth is damaged or decayed then just pull it and let a new one grow in its place.
If we utilize gene therapy we can regrow teeth, there are some forms of cancer that form extra teeth.
But front upper teeth & front lower teeth incisors & canine teeth can Regrow because they don't touchs while chewing
That mean my lil bro teeth won't grow back
Animals don’t eat the same sugary processed junk food. that humans are accustomed to
You can regrow teeth if you don't already have your adult teeth
01:15 _KIDS! This is what happens when you eat too much chocolates!_
they should take a group of people to experiment on and tell them that a sugar pill will regrow their teeth and see if it works and use the placebo effect to try and regrow teeth since it seems to work like 7 times out of 10 with other stuff.
“There’s been no human testing on that..yet” oh please, there has been but they just don’t want us to know.
The concept about stem cells is oversimplified
Go to the dentists? Ha... i just wait for it to HURT LIKE HELL.... then i get insurance for it
I have two tooth's which grow two time.I don’t know why but it did happened when I was 10.
The correct title should be Why Adult Humans Can't Regrow Their Teeth because when a human is a child, we will lose our baby teeth and get our "new" teeth which are our adult teeth. Now, if I were to lose a tooth as an adult, then it would not grow back and the dentist would have to either remove the tooth and/or replace it.
I had a tooth that almost rotted out, but my dentist fixed it by making a model like a book holder for a bookshelf and put it on both sides of the tooth. I have also chipped part of a tooth, but that part grew back and I am fine. I don't even remember what tooth it was because it looks like the tooth never chipped off.
Well let's get those stem cells back
Animals don’t eat sugar that’s why
just put hotglue if you lose a set of your adult teeth duh...
Referencing to another video where someone actually did hotglued their fallen teeth on their gums because they have a phobia of dentist
What if you accidentally eat the glue?
My metal tooth fell out
Regrowth teeth 6missing please help how to improve new teeth
Man my teeths are in so bad shape
My sisters crooked teeth don't agree with the Evolutionary reasons.
she really had fun flossing those 2 teeth
As much as I love being a human mammal my whole life this is one of a number of reasons why I hate being a human mammal. 😭😠
Humans get regrow teeth like if you loses your teeth again it won't grow
Science Insider: **Gets all information from only America**
*-Mr. Worldwide-** Mr. America*
Ill save you some time. The answer is that the enamel seals the base of the teeth where it meets the bone and when teeth comes off the enamel remains and i dont know what im saying thanks for reading
Why have I never seen a baby with jacked up teeth? Every one or two year old I have ever seen have perfectly straight teeth.
"Lasers and Drugs" could be the title of a so-bad-it's-good sci-fi flick
I've regrown teeth after my dentist pulled the wrong one, and lost one a second time.
how? my parents lost half their teeth, please help them