Abnormal (Fused?) Baby Teeth

Updated on May 26, 2010
H.Z. asks from Midland, MI
14 answers

My 10-month-old daughter's two bottom teeth came in when she was 7 months old. But they aren't identical, like most cute little bottom baby teeth I've seen - one is much wider than the other and jagged along the top. At first we thought she chipped it, but the pediatrician said at her 9-month appt. that it looked as thought it might have come in fused with the one next to it. (And she was never bothered by it, as she might have been if it were chipped.) She said to just wait until we saw a dentist at one year. I was wondering if anyone else had ever encountered fused teeth? I've found very little on the 'net about it, so it seems fairly rare, but I thought I'd ask anyway. I know it's just baby teeth, but most of what I've read says they are important because they hold the place for adult teeth. We call it her mutant tooth - ha. Her top 2 teeth just came in and they look fine.

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So What Happened?

Just wanted to say a big thank-you to everyone who responded about my daughter's fused teeth. I am not so worried any more about them - we'll just see what happens when we take her to the dentist when she's a year old, and if there's not an adult tooth there to replace it, then we can go from there. But at least I now know it's not some freakishly rare thing! I couldn't respond to everyone, but I really appreciate you sharing your stories. Thanks!

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G.M.

answers from Boston on

My now 5 year old niece also had two fused teeth, but they were on top so very noticeable. At the time, her doctor said that it wouldn't affect her adult teeth. Her adult teeth have since come in and they're perfect.

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B.P.

answers from Lewiston on

My son had 2 baby teeth that we fused on his bottom jaw. They were not jagged and did not bother him at all. Our dentist told us it was somewhat rare. So, in turn, he was very proud of them. They eventually came out with out any real incidence, and the new ones came in separate and perfectly fine! I wouldn't worry much if I were you. Good luck!

D.B.

answers from Boston on

My son had 2 fused teeth. They were the same size and came in exactly together. It was never a problem - they held the space for permanent teeth and they just came out at the same time, while the permanent teeth grew in at their own pace. He's 18 now so there was definitely no long range problem. I wouldn't worry unless they cause an eating or chewing problem. No one really notices children's teeth once they start losing them and having those funny smiles for a few years!

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N.B.

answers from Boston on

Hello H. Z,
I am a Dental Hygienist-living in the Manchester area. I have 16 years of experience in the field. I can tell you that fused teeth are not that uncommon. I have seen it more often on lower front permanent("adult") teeth, but it can happen with primary ("baby") teeth as well. Just watch to see how her adult teeth come in underneath....they may be normal, even though her primary lower incisors were fused. For now, just enjoy her "mutant" tooth as being a sign of her unique-ness.... :-)

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L.B.

answers from Boston on

Two of my three children were born with fused teeth on the bottom.
When they were older, they needed teeth pulled for braces and when the dentist pulled my daughter's, it was fused right down through the root. My son's had two seperate roots at the very bottom.
Sometimes, there will not be an adult tooth to replace one of the teeth, as in my daughter's case. This has not been an issue and something that runs on both sides of the family. Thank goodness for orthodontists! :)
My son had two adult teeth to replace the fused teeth.
It really isn't as rare as you'd think according to the dentist and orthodontis.

L.

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D.H.

answers from Providence on

My son had two of his bottom teeth in front come in like that. The dentist said that they were indeed fused together. He is now 15 yrs old and all of his teeth came in fine except for one on the other side of his mouth, which had nothing to do with the two fused baby teeth. The fused teeth do hold the place for both permenant teeth underneath and they should come in just fine. I wouldn't worry about it too much. My son had a baby tooth fused to his jaw bone with no permenant tooth under it and had to have it removed a few months ago. When his braces come off and he stops growing, they will fix it.

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K.G.

answers from Hartford on

My son has 2 fused teeth on the bottom row in the front. He had a missing space for a while but then that filled in. We were worried but went to the children's dentist and were told it was fine.

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M.J.

answers from Atlanta on

My daughter who is 4 years old has what looks like an infused tooth, but its one tooth that looks split and then fused together. It is her top tooth incisor tooth. The dentist told me not to worry about it, but I am hoping that there is a normal permanent tooth underneath this one.

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E.N.

answers from Boston on

Hi H.,
I think that I had a similar thing when I was a baby - we called it my "double tooth". Once it fell out, my adult teeth came in normal and without any spacing problems. Of course, I did get double the money from the tooth fairy! : )

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C.R.

answers from Los Angeles on

my now 6 year old has her bottom teeth fused
baby teeth were fused as well. I have to accept the fact that her adult teeth will be very bad. Braces will join her teeth. Problem is
2 of the 4 fused teeth have formed into a huge tooth which is gigantic and looks odd and out of place.
Well, I thank god thats the only problem with my little one.
Im thinking of 4 implants for the future, but that will be pretty pricy. We will just have to see.

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S.B.

answers from Providence on

My son's front left bottom tooth came in fused too! All his other teeth are fine. Funny b/c my pediatrician told me it was fairly common. She said not to worry it doesn't affect his perm. teeth! I verified this with my dentist and they agreed. He's approaching 3 yo. (which is when they recommend going to a dentist) so he's going to accompany me to my next appt. We call it his snaggle tooth! we also thought it was chipped. it's like a big wide tooth with a little "v" notched out. i wouldn't worry. i did at first and not i don't even notice it!!!

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R.H.

answers from Boston on

Hi H.,
I have been a Dental Hygienist for 20 years. I would not worry about the mutant teeth, they will still hold space for her adult teeth. As far as the bumpy top that is just how they form, those will eventually wear down. I would not worry about her adult teeth comming in like that, and if they do that is not a big deal either.

Becci H

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A.S.

answers from Portland on

Hi H.,
My son has 2 fused teeth! It is his canine and the little one beside it. At first they thought it could be what is called a "split tooth" but after all the other teeth came in we realized that 2 of the teeth were fused. My son is now 6. The dentist said it is not terribly uncommon but the real question is: Will he have 2 adult teeth to replace it? Well, he just had his 6 year panaramic x-rays and sure enough, he is missing a tooth. He will need braces and depending how much room is there, they will either shift things to even it out or put in a "fake" tooth. My husband and I are upset to some extent but have decided to accept it. This is who he is, how he was meant to develop and we will do everything we can to make him as "normal" looking as we can. I think it will be ok.

About you calling it her mutant tooth...funny! We call his, his "special tooth!"

Good luck! I hope my information helps and doesn't totally freak you out!

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C.F.

answers from Pittsfield on

H.,
The other thing I thought of is that maybe it's actually an adult tooth, and she didn't have her baby tooth. The adult teeth sometimes seem to be more jagged on the top. Is it taller, too? Anyway, either way, the dentist can confirm it when you take her in a couple months, and that amount of time probably isn't going to make any difference as far as spacing goes. Isn't it fun wondering and worrying about all these little things? :) What an adventure it is being a mom!

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