Big Tooth Growing in Behind Baby Teeth

Updated on November 18, 2011
S.B. asks from Costa Mesa, CA
14 answers

I just discovered a big tooth growing in behind my 5 year old's bottom baby teeth. I have read both that the baby teeth should be pulled, and also that the big tooth with eventually push the baby teeth out of the way, and they will fall out on their own. We are going to the dentist on Tuesday, and want to know what the best route to go is. Anyone have experience with this?

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answers from Los Angeles on

Trust the dentist's advice. In my case one of my molars is totally out of line with the others because my adult tooth was growing behind my "baby" tooth and my baby tooth did not fall out! It was eventually removed by a dentist when I was around age 14 but by then the damage had been done. I'm 42 years old now and I find the "out of line" tooth to be annoying as food often gets trapped there. Luckily, though, it's far enough back in my mouth that I'm the only one aware of the defect. I think that the adult tooth needs to be growing in the right place in order to push the baby tooth out. Good luck either way! :)

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answers from San Diego on

All but I think one of my son's has done that so far (well some in front and some behind). He's lost 8 now. We asked his dentist and they said it isn't a problem, the baby tooth will come out on it's own. He had one like that for one of his checkups and they said it wasn't worth it to pull it, it would come out on it's own. All of his adult teeth have moved where they belong once the baby tooth fell out and his teeth look fine now.
You are going to find dentists that will tell you they need to come out. Some of them are working off outdated information, some are simply wanting to make an extra buck and know full well it doesn't need to be pulled. Our dentist said to save our money ;)

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answers from Honolulu on

this happened with my daughter's first tooth, too. Kind of freaked me out :) but the dentist said not to worry that the baby tooth would fall out soon on its own-- and it did. Her two bottom teeth looked very crooked growing in but they are fine now-- i'm hoping this is the case as her two top teeth are growing in crooked now .. :)

see what the dentist says and if he/she says "pull it" i'd ask why and get a second opinion...

just my 2 cents :)



answers from Washington DC on

Shark teeth!

My daughter has had this happen to 3 teeth. The issue is that the adult teeth push up on the root of the baby teeth adn help dissolve the root making them loose and forcing them to fall out. If that is not occuring (the tooth is coming up behind) then the baby teeth won't get loose. Which is why they need to be pulled. Once the space is open, the adult teeth do migrate forward. However, if you wait too long, the more likely the adult teeth will be crooked, depending on the placement. For my daughter's middle front teeth, the adult teeth moved foreward and were perfectly straight. In the case of the third tooth up top, I didn't see it for a LONG time and it came in very crooked and didn't move into position as well.

Baby teeth come out very easily. My daughter had a gum numbing cream and some novacain. Ped dentist did a trick to make her think he was going to remove them through her ears. She never even felt them get pulled. Easy.



answers from New York on

Big teeth will push baby teeth out of way. Would neve pull baby teeth. Why
traumatize child.



answers from St. Louis on

it can go either way, it will depend on the root system of the baby tooth vs. the rate of eruption for the adult tooth.


answers from Washington DC on

Awww.. is the little one in pain? If not, then I guess you can hold it off til tuesday but, so long..... :-(

A month ago, my daughter pulled her lower incisor. literally. she gave it to me and said, i have to clean this and put under my pillow for the tooth fairy... seriously.

my cousin is a dentist and she said that it is rare for a tooth to fall out on its own. it "needs help" moreso now that there is a new tooth coming. it might be a bad effect on the new tooth to have the old tooth hangin' in for a long period of time. will disrupt normal growth.

(did your baby by any chance thumbsucked instead of orthodontic pacificiers? i am such an advocate of this and tell practically everyone that my kids have long benefitted from ortho pacifiers i bought from coolpacifiers. their teeth are picture perfect. see pictures :-) )



answers from Los Angeles on

My son had this and the dentist was not concerned. The tooth eventually fell out on its own.



answers from Los Angeles on

Happened to both my kids. Baby tooth eventually fell out own it's on.



answers from Los Angeles on

almost always, the baby tooth will fall out on its own & the new tooth will push its way forward into place. I know that it looks freaky! My oldest had "shark teeth" for a couple of his big kids teeth (my middle kid has one right now too), and they are all in place now.
don't worry - just encourage your kiddo to wiggle away (with clean hands!).



answers from Joplin on

my son had two bottom front teeth come up behind his baby ones and after the baby teeth fell out , and i heard this would happen and it did the two behind some how came forward to replace them, weird i know.



answers from Louisville on

I think part of it will depend on whether or not the big tooth is in a spot to be able to push out the baby teeth.

You don't always lose baby teeth - my 22yo son has for sure one and maybe two baby teeth still in his head - there was nothing behind/under them for a big tooth.



answers from Pittsburgh on

In my understanding (this happened with my son & it happens with a lot of kids!) it's not that big of a deal--especially with the bottom teeth. The baby teeth will come out & the big teeth will most likely move forward. Quite amazing!



answers from Los Angeles on

I work on a playground with elementary kids and I cannot tell you how incredibly common this is. It even happened to my daughter and her friend both. None of them had to have the teeth pulled. Your dentist will let you know if it's necessary, but most of the time the permanent teeth will push the baby teeth out.

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