Can I Glue My Crown Back On Myself?

My crown fell off. Do I have to go back to the dentist or can I glue it back on myself?

by Dr. Burhenne

Can I Glue My Crown Back On Myself?

Crown Glue Question: My crown fell off. I’ve searched the internet and it seems like some people are gluing their crowns back on themselves, without having to see the dentist. Do I have to go back to the dentist or can I glue it back on myself?

Answer: The recent economic woes in the U.S. have led to an increased account of DIYers performing their own dentistry at home. So, perhaps it is not a surprise that the most popular technique involves Super Glue.

As amusing as it sounds, I see patients using many dangerous methods to save themselves a trip the to the dentist, from emery boards to power tools (i.e. Dremel tools). I was told by a patient the other day that Super Glue worked better than Krazy Glue. Obviously, he’s had some experience in differentiating between the two in their effectiveness.

It is true that cyanoacrylate, the generic name for Super Glue and Krazy Glue, which contains acrylic resins methyl-2-cyanocacrylate or 2-octal cyanoacrylate, is used by physicians for wound repair. In fact, cyanoacrylate bonds very well to surfaces that are moist and non-porous.

Sounds perfect for that dental crown that keeps coming out, right?

Unfortunately, that notion is wrong and here’s why: The crown is a non-porous surface and can be moistened, but the tooth, despite being very moist, is also very porous. Therefore, the adhesion between the two is negligible and will not last.

But the real danger is forcing the cyanoacrylate down into the tubules of the tooth and killing the tooth. This will ultimately lead to the need for a root canal or even the loss of the tooth due to resorption.

What most people may not know is that a dental crown does not stay in place via adhesion. It remains in place for years merely by mechanical retention.

Mechanical retention is best explained like this: Imagine placing an identical glass over another identical glass. Pick up the upper glass and the one below comes with it, and the two “stick” together as you lift the top glass.

Now try that with two identical bowls stacked face down on top of each other. It’s impossible to pick the bottom bowl by lifting the one placed on top. This is an illustration of the effects (and success) of mechanical retention.

So if that crown keeps falling off, it’s not due to a lack of adhesion – it’s due to the shape of the prepared tooth lacking in retentive features. Dentists typically don’t actually use glues, we use cement to prevent saliva from seeping between the crown and tooth, which prevents tooth decay. In this light, I hope you see the futility of using a product like Super Glue in your mouth.

It’s not at all about stickiness; it’s also about the shape of the tooth and the tightness of the fit, which keeps the crown from falling off.

And because the human body has a high moisture content, cyanoacrylate adhesives will bond very effectively to the skin and other body parts. Believe it or not, I have had a patient come in with his lips glued together!

Mark Burhenne DDS

read next: Can I Whiten My Crowns?

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Dr. Mark Burhenne DDS


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  1. Hello, and thank you for this information on how to properly deal with a crown that has fallen out. Many people have dental crowns, and depending on the type sometime they can fall out. I think it’s important to always seek the help of professionals when dealing with this type of thing to make sure the job is done right and effectively.

  2. Thanks for the information. My brother has been wondering if he can glue his crown back on. After reading this, it seems like that would definitely not be a wise idea! Just like Fitz said, it’s absolutely crucial that you seek the help of a professional to do the job. That’s definitely the safest way.

    • Hey — actually maybe you talked to someone who wasn’t as good at research. I know someone who went online, studied for a few nights, watched a few youtube procedures, and then went online and bought the stuff dentists use from a site. Not sure what he bought or watched, but he claims he recemented his crown better than his own dentists did using something called “etching” using the same exact ingredients he said are currently used in a dental office. He did something else, but the gist of it is, people who are intelligent and do proper research aren’t using super glue. Because I just researched a bit myself and found people are not all idiots, and as someone whose veneer keeps popping off, I find this encouraging. What is disappointing is JUST how many dentists seem to think we are all idiots using superglue.

      • You sound very defensive and I am not an idiot but very thankful that the dentist said NOT TO USE SUPER GLUE BECAUSE IT CAN KILL YOUR TEETH! Pretty sad that the dentist offered a very neutral honest post and you have to cut him down for some weird reason beyond any of our understanding. Very interesting.

  3. Thanks for the information. My mom’s crown fell off one summer, and I am glad we didn’t think of trying to fix it ourselves. After watching, “Castaway” I have not really been a fan of DIY dentistry. After reading this, I will be sure to get my dental crowns repaired by a professional.

    • Virginia, thanks! I had forgotten about that Castaway scene…great reminder of the problems with DIY dentistry.

  4. I don’t know about you guys but I wouldn’t feel completely comfortable about putting super glue in my mouth. It may work fine without repercussions but what if you were to mess up or not put the crown back exactly in place? Yes people are doing these things at home, but it would be better if they had them done at a dental office. At the dentist, they would be able to put the crown back exactly where it is supposed to be with a minimal margin for error.

  5. So as crazy as it sounds about super glue and your crown… here is my current story. At age 11 I fell down my stairs and hit my face slap down on the concrete basement floor. My two front teeth were done. It was right before Christmas so I asked Santa for “my two front teeth” I got them. Mom took me to get temporaries until the final crowns were installed. (Had two permanent crowns since then, and had to replace them once each since) Fast forward to last year. Fell down and hit my face again. This time one of the perm crowns broke off. So I was left with a stub on my front tooth. I work in retail so I had to have a smile. I grabbed the pieces of my tooth and got a tube of superglue out and proceeded to glue it back. This was the most embarrassing moment of my life. I was able to save the rest of the crown and take it to my dentist. They used some cement and color and fixed it for me the best they could till I could get another crown. So it has worked for me for a few months, but I can’t bite on anything and it becomes loose after two weeks and I have to re-superglue it. I am embarrassed to tell this story, but I am sure their are others also dealing with it too. So felt like I needed to share.

  6. What about the use of actual dental cement. Can one buy that somewhere? I have a real problem with tooth grinding and I often grind the thing right out of my mouth. then another trip back to the dentist where he turns around and glues back in

  7. I have a crow that comes off several times a day. I use Fix-O-Dent to hold it the best I can. My problem is I’m totally bed fast and live in an Assisted Living Home. To go to the dentist would involve going In an ambulance which cost me $200.00 round trip and I don’t think the gurney would even go past the waiting room and there’s no way I could get in the dental chair. Please I need to know what I should do. I’m only 62 years old and have MAJOR health issues. THANK YOU!

    • hi it seems we all older people have the same problems whit our denture, i live close to the border of mexico.and i visit any dental offices. down there and they do an excelent super chip job.i my self can afforth to go to a dentist here my penssion is just not enough .so i recomend to visit mexico for a dental .job

  8. I too have the same question. My crown keeps falling almost every fortnight and I am tired of visting the dentist again and again

  9. Those who commented on the article by repeating “go to the dentist” are missing the point entirely. Most assuredly, everyone who needs to have a crown replaced or repositioned would make a bee line to their dentist if money were not an issue. To respond with “go to the dentist” is cavalier and insensitive to those in less, or unfortunate, financial circumstances. I often hear others being advised to seek reduced fee or free dental care, but not once have I ever seen a practicing dentist offer either. Walk into a dentist office with a toothache or other oral emergency, you will be shown the door if you do not have the funds to cover all charges in full. While makeshift methods such as superglue may not be the best answer to solve a loose crown, it does work. When someone has no other options, then they do whatever is necessary to achieve the desired result.

    • Thank you for this!! Your Empathy and understanding as well as your eloquence are a rare thing nowadays … I wish more people had your grasp of how real people live

  10. You absolutely can buy the same adhesive and clean /glue your crown back on.
    Just Google dental adhesive and fix it yourself. The dentist won’t get a new yacht this year…..

    • Be aware that the dental cements available to the public are temporary adhesives only as they are soluble. They slowly dissolve away leaving the tooth vulnerable to decay, a root canal and eventual loss.

      I don’t charge for recementations of crowns and inlays I placed, as it does not happen often. Many dentist to the same and stand by their work.

      I hope this information is helpful. Permanent cement is only available to those that have a dental license, and it’s not the same stuff that you see available on line and in pharmacies.

      • I wish you lived close to me because I have been victimized by by very unethical practitioners… The last one shortened by front teeth so much, for ‘cosmetic’ reasons, that I not have really bad TMI. Not to mention the realigned bite caused my dental implant to move from side to side, which I don’t think they were designed for. One is now lose, which brings me to this forum… I have another crown on a root canal that keeps popping out.. One dentist kept recementing and charged me $170 a pop, the other said there was decay and the root canal needed to come o myselfut and an implant be placed… One said there was decay, the other said the needed veneers… So, I went to another one for a re-cement, when the tech left I studied everything they used, and while she was working I studied everything they did… I ordered KETAC CEM plus luting cement.. and I will do it myself…I passed all 5 tests on the Mensa website (thought they would give me a job, hehe) so I think I have the brain power to do it… My horse got lacerated on barbed wire and I actually numbed and sutured the area myself after a Vet quoted 5k for a 4 inch cut… He’s jumping 4 feet now and there isn’t even a scar

      • Thanks for the info. I would be greatly appreciative if you could give me an advice. 10 years ago my front tooth broke half, so I got a crown for $3000. After ten years the crown came off. The crown has a metallic pin protruding out of it which goes into a hole in the half broken tooth. I took it back to the same dentist and he has re-cemented it. The crown got loose again after few months. I have gone back to the same dentist and one other dentist but they would not recement it. They told me that I need an implant. well, I cannot afford an implant and but they just told me to recement it yourself. I have asked what type to cement to use but they did not tell me, just told me to buy anything from the market. One just said to use ‘Speed Cement’ but there are several different types coming up on Google. Could you please tell me what to do or what is the specific type of cement I can use. Thanks.

    • If your crown came out and you replace with any type of glue, it will take up space. When it does, it will unnaturally hit the apposing tooth. My dentist ground down the tooth surface reducing the contact area.

      • If you are sick of money grubing dentists who let their techs do all the work… order the Luting cement online Ketac Cem plus luting cement… do it yourself… it is not like you are drilling

  11. I had a crown fitted one year ago. I told the dentist that I couldn’t close my mouth properly as there seemed to be a lumpy piece on the back of the crown which went up onto the start of roof of my mouth. It didn’t seem right she told me it would be all right and it would go away soon. It is still there but the strange thing is the sides of the back of the cap seem to be dissolving and I can taste a metalic taste on my tongue and it looks like the top of the tooth at the back is going back. I have never had a problem with my teeth and I am lucky to never had a filling in my 51 years. all my teeth look clean front and back but now I’m concerned. How do I go about it, I don’t want to be fobbed off as she did with the clump at the back of my tooth.

  12. Howdy crown restorers…

    If your fallen off crown has reveled a abatement that is in good order, utilize a friction mechanism re-attachment method.

    I used wax paper by trying different layer-thicknesses. Line the crown with the appropriate thickness for your situation. Heat the wax-paper with a blow dryer and let it conform with the inside walls of the crown. Set it on the abatement by biting down until you feel you have the ideal forceful attachment effort. You will know and try different thicknesses.

    My third time was a charm. Seven months and two weeks has passed with my crown in place…
    Ordinary baking wax paper has worked most excellently for me.

    No worries about the hang over of a wee bit of wax paper around the abatement and gum transition. Within a few regular brushing cycles and dental flosses it will dis-appear.

    Your gum, tooth, and crown points are sealed from bacterial agents and your pocket book is buffered from the mouth zombies…

  13. I’m really shocked that people would try gluing their dental crowns back on. It kind of makes sense but is not anything I would ever want to try. I am further convinced that I shouldn’t by your post. I definitely don’t want to cause irreparable damage to my teeth. It just means more dental work. Anyway, thanks for your post and explaining how dental crowns are held on through mechanical retention. I had no idea this was the case.

  14. I had a crown that somehow got an abscess. I knew it’d need a root canal, and quite frankly, i expect some long term effects until I can afford to go to a dentist (no insurance). The pain was unbearable. Eventually, the crown broke off from the root, (solid on the inside) and now i have no pain. I use super glue to get it back in and it holds up pretty well. It’s certainly not a permanent solution, as i am still searching for FT work with dental… but.. a root canal will cost me too much.

  15. Hi all I recently had an implant crown come off, and had it re fitted by the dentist, have to say I am not impressed, took over an hour of faffing around and negative comments, I will be getting some dental cement ready to DIY if it comes off again, which I am sure it will, the original implants have lasted more than 9 years with no problem till now, I really do not expect this repair to last that long, I might add that I am a very capable self healer, for instance I fell years ago and was wearing “Dealer boots” the left boot was torn off and my for was at 90% to the left of where it should have been, I straight away pulled it back to where it should be, (re locating the joints to where they should be) in was immensely painful, and stared to swell, paid a visit to A & E where they X rayed it and pronounced all was in order, I had difficulty walking for a few months but now years later I would not know I had done it, the point is if something gets dislocated the sooner it gets put back the better, had I waited for the Hospital to sort it, it would have een far worse, Rick

  16. My boyfriend has a bridge consisting of three teeth, tooth broke that was holding in his bridge, can he use dental cement to glue the bridge back on to the tooth that is broken? A root canal was done years ago on the tooth that broke, which is holding the bridge to the other two teeth.

    • I had to have what is called a post and coil on the tooth that broke and the bridge was reattached to that. Not a do it yourself job. Sorry but sounds like a trip to Dr. $$$$$$.

  17. I just want a temp fix until I can get to the dentist on Monday ! But I don’t want to make his job any harder by putting some product on my tooth ? Will it be ok for s tom fix ?

  18. Had crown completed has made Five trips back to dentist since he made the crown because it came off had some for twenty years still on but one with post does not hold

    • same here I have had crowns for over 30yrs but this one i had before xmas has come out 4 times now and is really begining to annoy me it has just come out again eating ice cream I could cry 4 times in 5 months its not good enough

      • @debbie Same. Have several crowns that I’ve had thirty years, no problems. But the temp crowns I’ve gotten this year, from a dental school doing the work, all come off anywhere from a day to a week after being put in. Then I have to wait three to four weeks till the perm crown is put in. At least the four crowns they put in this last year are still holding strong so far.

  19. My tooth came loose from my dentures so I glued it but it’s in the wrong place, how can I get it loose ?Help thanks Debbie.

  20. I have a metal back porcelain bridge over my 4 upper front teeth. Those teeth were prepared for the bridge by the dentist and now are ground down nubs. The bridge never has stayed on longer than 30 or so days and this has been going on for over a year.

    I have told the dentist that I believe one of 2 things has happened. The bridge never fit correctly
    ( either the fault of the manufacturer or the dentist`s mold was off) or the teeth are were ground down to much.

    Can metal be added to the inside of the bridge to create a tighter fit and increase the chances of the crown staying in?

  21. I’m going to keep googling! Of course having everything handled by a well trained and properly equipped professional would generally be best, but this feels like a professional car driver telling us stories about some accidents and drunk drivers and concluding that we all better stay home until a proper chauffeur comes to drive us around in our own car. I’ve heard of people drilling their own teeth and the does sound crazy to me… but I’m here because a temporary crown (awaiting the arrival of the permanent one) came off and my dentist said “tomorrow” then the next day said “tomorrow” again so I used super glue. When I texted to say I thought it would be okay until next week (for a mutually convenient appointment time) the message from them was that I should not do that… when I said I already had they spoke of how inappropriate, poisonous, damaging it might be. People die in car accidents every day and probably people mis-glue themselves with some frequency, but nothing I’ve read here makes it sound like super (or “crazy”) glue would be bad to use TEMPORARILY on a tooth that is already root-canal-ed. I can see where trying to use it long term would invite decay issues. Back when “krazy” glue was new, a consumer reporter used two panes of glass (as the dentist in this article described) but she declared that the “trick” of the krazy glue was that it acted like the water between two panes of glass (which will loose their suction when the water between the panes dries out… so, at least it seems to me… filling the tiny voids that allow a crown to slip off its post is basically exactly the kind of job that krazy glue was made for!

  22. I’ve been to the dentist twice in as many days. They put a temporary crown on yesterday, and I popped out last night. I had it placed again today by the dentist. It’s already come out again. They suggested I get an over the counter dental bond or simply use toothpaste. I have to wait two weeks for the “permanent” crown. I’m not happy. Any input?

  23. Is it possible for dentist to bond one false upper tooth to teeth on either side without using a bridge , i have a temporary plate , hate it but also dont want a bridge , i dont have even have a bit of tooth in cavity

  24. A few years back, I had my four lower front teeth in a row crowned, last year one of the crowns fell off and I had it reglued at the dentist, this cost me $250.00. I had another of the 4 crowns fall off today. Called the dentist, went right down and had it replied to the tune of $290.00. I still have two out of the four crowns in place with the original glue…just waiting. These prices are ridiculous to reglue a crown but when it falls off on a front tooth, what else can you do? THIS is the reason people want to know where they can buy a glue that will hold, I’m looking for one now too. Does anyone know where to get the good glue?

    • Do not give that robber of a dentist any more money!! order Ketac Cem plus luting cement online… It is what dentists use, I know cause I went through all the stuff they used when the tech left the room… I ordered some online and will use it… it’s gluing one shape onto another. If you can craft, you can do it

  25. Should I just take the teeth out? They are three front teeth. I have temporary crowns – do i leave them out while I sleep until I can see the dentist?

  26. Why quality dental cement is not available for a public?
    I would like to charge the dentist every time I go for re cementing loose things…

  27. To Lynne:
    I am appalled that your dentist would put you off day after day to get a temp crown cemented in, let alone charge you! I love Dental Care in Vineland NJ. They are an awesome, caring and committed team. Not only did they squeezed me in the next day, no charge for cementing the temp. They are replacing the permanent one for free cause it was loose before it was a year old! How is that for customer service !

  28. Hobie,

    I drive a white van and have 4 crowns recently fitted, they also came off so I tried your swishing method to save a bit of time, lo and behold it has stuck all my mouth together and I am now in A&E slightly embarrassed awaiting a Doctor, the triage nurses are smirking away to themselves for some reason, I just feel a bit daft and am in a hell of a lot of pain!! In fact it’s a good job I can type this as I certainly can’t talk, and can’t drink this glass of milk? Impossible to swallow!

    So please don’t make my mistake people and glue them in one at a time!



  29. My crown that was fixed back in India has just fallen off. I stay in Dallas. May I know the cost to get it re fixed?
    Thank you

  30. I have a slightly different problem. My temp crown came off. It’s three more weeks till the permanent gold crown will be ready and installed. I’m having dental work done at a Dental school and it’s a 2 1/2 hour drive away. So I’d like to know if there’s a temp glue I can use to save me the trip in the mean time. BTW, the Dental school is in Indianapolis, IN. and the total cost for the gold crown is under $600. That’s for all the prep and everything. It takes three visits to do each crown. Gas to get there and back is around $40 for me, so with gas and the schools charge, $720 for a gold crown sounds pretty nice considering the last time I had a full time dentist do a crown, twenty years ago, it cost me $600. I’ve seen some of the posters here say their full time dentists charged them upwards of $3000 for a crown! 0_o. The school has been great, but at the second visit where they put on the temp crown, they have always come off before the final crown is ready. One came off during my first meal. Another lasted a week, this one only lasted two days. It’s intact, so wondering if I can reattach it myself?

  31. @Hobie I’m surprised your post made it past the moderators! Swish superglue? Are you insane? You are most likely a Troll. Superglue bonds INSTANTLY.

  32. Why is it after paying a huge amount of money we have to fix it ourselves. A lot of what you read blames the patient. I’m going on my third temp crown. The first 2 cracked off at the same spot and was so sharp it scraped the back of my tongue and made it sore.

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