A handful of everyday foods are responsible for most of the cracked and broken teeth I see in my Midtown Manhattan practice: popcorn kernels, olive pits, hard bread and biscotti, hard or sticky candy, and stubborn food packaging. Teeth usually break because they meet something unexpectedly hard. Eating a little slower and paying attention to what’s actually in your mouth prevents most of these emergencies entirely.
It happens more often than you’d think, and almost always the same way. Someone is halfway through a bowl of popcorn, mid-movie, mid-conversation, mid-distraction, and then, mid-bite: a jolt of pain and a sharp edge where a smooth tooth used to be. I hear some version of this story constantly in my Midtown Manhattan practice, and it’s almost never a dramatic accident. It’s popcorn. Or an olive pit. Or a piece of crust from the bakery on the corner.
Here’s what surprises people: tooth enamel is the hardest substance in your body, harder than bone, but that doesn’t make it invincible. The tooth was simply asked to do something it wasn’t built for: absorb the full force of a bite meant for something soft, delivered instead by a camouflaged piece of rock-hard “shrapnel.” Teeth are remarkably strong, but strength and invincibility aren’t the same thing.
Below are the five foods I see cause the most cracked teeth in my chair, what’s actually happening inside the tooth when it happens, and what to do about it if (when) it happens to you.
What Actually Happens When You Bite Down Wrong
Hardness and toughness aren’t the same quality. Enamel is also brittle, closer to glass than to steel. When you bite down expecting something soft and meet something dense and unyielding instead, the force doesn’t spread out evenly. It concentrates on one small point, usually a cusp or the edge of an old filling, and something has to give.
Note: think of a tooth like a windshield. It can survive a thousand highway miles of pebbles and grit without a scratch, then one specific rock at one specific angle puts a crack straight across it.
The American Dental Association specifically warns patients to avoid chewing ice, popcorn kernels, and hard candy for exactly this reason. If you already have a large filling, crown, or root canal in a tooth, it’s more vulnerable still, since that tooth has less of its original structure left to absorb the impact.
The 5 Common Foods That Can Crack Your Teeth
1. Popcorn
Popcorn is the single most common cause of cracked teeth I see in my chair, and I understand why. It’s light, it’s salty, it feels harmless, practically a vegetable if you squint. But somewhere in every bag or bowl is an unpopped kernel disguised as one of its fluffy, cooperative neighbors, and your jaw has no idea it’s coming.
You don’t have to give up popcorn. You do have to stay a little bit present while you eat it, which is easier said than done when the bowl’s in your lap and you’re shoveling it in by the handful.
Note: I’ve treated more perfectly healthy teeth split clean in half by a popcorn kernel than by almost anything else on this list combined. The kernel always wins.
2. Olive Pits
Olive pits are popcorn’s quieter cousin. A pit left in by accident, or an olive you assumed was pitted, delivers the same unexpected jolt: soft olive flesh, then suddenly a small stone your tooth was never warned about.
If you’re eating olives from a jar, a bar snack plate, or a dish at a restaurant, treat the first bite like a test run before you settle into a rhythm.
3. Baguettes, Pretzels, and Biscotti
New York bakeries do crust extremely well, which is precisely the problem. Hard, crunchy foods like a good baguette, a Dutch pretzel, or biscotti put your enamel in a genuine contest, and enamel doesn’t always win, especially at the edge of a molar that’s already carrying a filling.
Take a small exploratory bite first. If it fights back, break it apart with your hands instead of your teeth (or dunk it in your coffee, beer, or soft drink).
4. Hard and Sticky Candy
Two different candy categories cause two different kinds of trouble. Hard candy, jawbreakers, peanut brittle, a Milky Way bar left too long in the freezer, cracks teeth through sheer force. Sticky candy, caramel, taffy, jellybeans, does its damage differently: it doesn’t crack a tooth so much as grab hold of a filling or crown and pull.
Note: I can always tell when a patient has had a rough encounter with a caramel, because they show up holding their goo-covered crown, wrapped in tissue that’s now paper-macheted to it. Never wrap a dislodged crown in tissue paper, it’s too easy to toss out by accident. Bring it in a small container or a plastic bag instead. I’ve lost count of how many patients have thrown their own crown away by accident, tissue and all.
5. Food Packaging
This one has nothing to do with what you’re eating and everything to do with how you’re getting to it. You’re rushing between meetings, the bag of almonds won’t tear, there are no scissors in sight, and your teeth start looking like a reasonable substitute for a box cutter. They are not a reasonable substitute.
Your teeth are built for biting, chewing, and very little else. Save the packaging battles for actual tools.
What To Do If You Crack a Tooth
- Stop eating on that side right away. Continued chewing can push the crack further before you even reach a dentist.
- Rinse gently with warm water. This clears debris without irritating the area further.
- Save any broken piece if you can find it. It occasionally helps with repair, and it’s useful for your dentist to see either way.
- Apply a cold compress to the outside of your cheek if there’s any swelling.
- Call your dentist the same day, even if the pain is mild. Cracks tend to get worse, not better, with time.
Final Thoughts
None of the foods on this list need to disappear from your life entirely. I still eat popcorn. I still enjoy a good olive (in fact, I like three in my martini). The goal isn’t deprivation, it’s increased awareness of what evil lurks in a wayward bite, mid-movie, mid-meeting, mid-rush.
If you do end up on the losing side of a popcorn kernel or a stubborn piece of packaging, don’t panic and don’t wait it out. A cracked tooth rarely announces itself as an emergency at first, which is exactly what makes it worth calling about early.
For New Yorkers Looking for a Dentist They Can Trust
If you are in New York City and looking for a dentist who will give you straight answers without a lecture, my team and I would be glad to meet you.
Visit us at our Midtown Manhattan dental office for an experience built on clarity, warmth, and genuine care.
Whether you have questions about a tooth that cracked on a popcorn kernel or one that’s simply due for a checkup, you will leave with real information and a plan.
You may have just found your new dental home.
Call us today to book your appointment; we look forward to meeting you!
Frequently Asked Questions: Foods That Crack Teeth
1. What foods are most likely to crack a tooth?
Popcorn kernels, olive pits, hard bread and biscotti, hard or sticky candy, and food packaging cause most of the cracked teeth I see. Each shares the same pattern: your jaw expects something soft and meets something hard instead, concentrating force on one small point of the tooth.
2. Can a cracked tooth heal on its own?
No. Unlike a bruise or a cut, a cracked tooth cannot repair itself. Left alone, a crack tends to spread deeper with normal chewing, which is why calling your dentist promptly matters even if the pain seems minor at first.
3. How do I know if I cracked a tooth?
Sharp pain when you bite down, sensitivity to hot or cold, or a visible chip or rough edge are the most common signs. Some cracks are painless at first and only show up on an exam, which is one more reason not to wait if something feels different.
4. Are teeth with fillings or crowns more likely to crack?
Yes. A tooth with a large filling or crown has less of its original structure intact, which makes it more vulnerable when it meets something unexpectedly hard. Extra caution with the foods above is worth it if you have significant dental work.
5. Should I tell my dentist if I bit down on something hard?
Yes, even if nothing hurts right now. A small crack can be invisible to you but visible on an exam, and catching it early is almost always simpler and less costly than waiting until it worsens.
While You're Here...
About the Author
Dr. Michael Sinkin is a NYC general and implant dentist located in Midtown Manhattan with over 40 years in practice. He is also a Surgical Director at NYU College of Dentistry’s Continuing Education Implant Program. Dr. Sinkin has built his practice around one idea: exceptional dental care with a heart.
10 Responses
You can add caramelized popcorn such as Crunch and Munch to the list. Just a few days ago I broke my #3 CEREC crown, lingual side chewing on a large piece. I just wasn’t thinking because I’ve given up many of these tasty offenders due to having three crowns now. The crown in question was 17 years old and in fact my dentist said on one side the material was paper thin! He was impressed that it lasted as long as it did. Yes, even us with excellent dental habits fall down at times. $1,245 the total cost no no insurance….ouch! I get my permanent crown in a couple of weeks. From now it’s cheese puffs!!
Biscottis are meant to be dipped in a warm liquid before you eat them, to soften them up. Are there really people who just eat them hard??
I didn’t know that. But some people like to munch and crunch at the same time with the unfortunate crack resulting. Thanks, Danielle.
Beef Jerky and Turkey Jerky! Terrible. My molar has split in half
Dear PJ,
Jerky can certainly wreak havoc on A tooth, especially one that has large fillings. Jerky has a density to it that can cleave off a weakened cusp and a chewiness that can pull out that which has been broken. You might want to rethink what or at least how you chomp on your snacks. Good luck with your molar.
Dr. Sinkin
Ate salad with critons and fragnents of upper teeth chipped.help.just had upper tooth worked on last month
Hi Kim,
Those croutons can certainly pack a crunch. Time to make a dental appointment!
Good luck,
Dr. S
Very relatable. A lot of my patients come to me with broken teeth because of carelessly biting into popcorn kernels and other stuff.
This article should serve as an example to others to take their oral health seriously.
Just broke my tooth on a popcorn kernel. I’ve done it before. I don’t understand how we forget things like this and do stupid stuff over and over!
Insanity is defined as doing the same thing over and over again and expecting different results.