Posted by Dean L. Carlston Jun 04,2025
Cracked teeth are sneaky. They don’t always announce themselves with a bang. Sometimes, they whisper—showing up as a mild twinge when you bite down or drink something cold. Other times, they shout—with sharp pain that makes you wince and wonder what just happened. Either way, they deserve attention. Let’s talk about what causes cracked teeth, how to spot one early, and why ignoring that little zing could cost you more than just your bite.
You don’t have to bite into a popcorn kernel to crack a tooth—though that’s one way it happens! Here are some common culprits I see in my office:
- **Nighttime grinding (bruxism)** – Unconscious clenching can create enormous pressure.
- **Large fillings** – Older restorations can weaken the tooth structure.
- **Chewing hard foods** – Ice, nuts, bones, or even dense bread crusts.
- **Sudden temperature changes** – Like sipping hot tea and then eating ice cream.
- **Accidents or trauma** – Sports injuries or an unexpected fall.
- **Aging and enamel wear** – Teeth naturally lose elasticity over time.
Some teeth are already vulnerable without us realizing it. That’s why I always look closely at older fillings or signs of wear during your exams.
Cracks can be tricky. They’re not always visible on X-rays or to the naked eye. But your mouth gives clues:
- Pain when chewing (especially when releasing pressure)
- Sensitivity to hot or cold
- Intermittent discomfort that comes and goes
- A feeling that something’s 'off' with your bite
- Swelling or irritation near the gum line
If you experience any of these symptoms, it’s worth a visit. I use magnification, gentle testing, and sometimes imaging to track down the crack—and stop it from spreading.
Not all cracks are created equal. Here’s a quick guide to what we look for:
- **Craze lines** – Tiny surface cracks in the enamel. Common and usually harmless.
- **Fractured cusp** – When a piece of the tooth breaks off, often around a filling.
- **Cracked tooth** – A deeper split that starts at the crown and can extend downward. Needs urgent care.
- **Split tooth** – When the crack goes all the way through. Often not salvageable.
- **Vertical root fracture** – Starts at the root and moves upward. Hard to detect and often painful.
Each type has its own treatment path—ranging from smoothing and bonding to crowns, root canals, or extractions. The earlier we catch it, the better the outcome.
Here’s how I help patients keep their teeth intact:
- **Nightguards for grinders** – A custom-fitted guard cushions the pressure.
- **Replace worn or oversized fillings** before they weaken the surrounding tooth.
- **Avoid chewing ice** (seriously—your teeth are not tools).
- **Address misaligned bites or jaw tension,**which increases stress on certain teeth.
- **Treat acid reflux or dry mouth** to preserve enamel strength.
- **Come in for regular exams**, so I can spot early signs of stress fractures.
Prevention is powerful. It’s easier (and less costly) to reinforce a vulnerable tooth than to rebuild a broken one.
If something feels different when you bite, don’t chalk it up to aging or stress. That little twinge could be the beginning of a crack—and a crack left alone doesn’t heal. But with early intervention, we can save the tooth and your peace of mind. Let’s keep your smile strong, steady, and pain-free. I’ve got the tools, the know-how, and the care to help
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