Common Causes of Dental Crown Damage and How to Prevent It

Dental crowns are like protective shields for your teeth. Whether you’ve gotten a root canal, a large filling, or a cracked tooth, a dental crown helps bring strength and function back. But just like anything you use daily, they can wear down or break if you’re not careful.

If you’ve ever asked yourself, “Why did my crown break?” or “Could I have stopped this?”—this guide is for you.

Dental crowns can become damaged from excessive biting forces, teeth grinding, poor oral hygiene, an improper fit, or normal wear over time. While some crown damage can be prevented with good oral hygiene and careful eating habits, changes such as pain, sensitivity, looseness, cracks, or food getting trapped around the crown may require a dental evaluation. Identifying these signs early can help protect the crowned tooth and prevent more extensive treatment.

Let’s walk through the most common causes of damage to dental crowns and what you can do to make yours last as long as possible.

What Causes Damage to Dental Crowns?

Your crown may look tough—and it is—but it’s not invincible. Several things can put it at risk. Let’s break it down.

1. Grinding Your Teeth (Bruxism)

You might do this while sleeping and not even realize it. Grinding or clenching puts immense pressure on the crown, causing tiny cracks that worsen over time.

Signs you might be grinding:

• Waking up from sleep with a sore jaw or headache
• Flattened teeth
• A partner mentioning “crunching” sounds at night

Prevention Tip: Wear a custom nightguard. It cushions your teeth and protects the crown from excessive force.

2. Chewing on Hard Foods or Objects

It might feel satisfying to bite into an ice cube or open a package with your teeth, but your crown pays the price.

Culprits include:

• Ice
• Hard candy
• Unpopped popcorn kernels
• Pens, fingernails, and bottle caps

Prevention Tip: Use your teeth only for eating. Cut tough foods into smaller pieces. And don’t chew on pens—keep one with a grip if you’re tempted to bite.

3. Poor Oral Hygiene Habits

You may think crowns don’t need brushing since they’re artificial, but the tooth underneath still does. If decay forms under the crown, it can loosen or damage it.

Common mistakes:

• Skipping flossing
• Not brushing around the crown edges
• Letting plaque build up at the gumline

Prevention Tip: Brush twice daily and floss around the crown carefully. Use fluoride toothpaste. Don’t skip checkups at your dental clinic near you—even crowns need professional cleanings.

4. Improper Crown Fit or Old Age

Sometimes, the damage isn’t your fault. A crown may have been poorly made or placed. Or maybe it’s just time—crowns don’t last forever.

Warning signs:

• A loose crown
• Sensitivity to hot/cold
• Pain while chewing

Prevention Tip: If you feel your crown is shifting or hurting, see a trusted dentist. A timely repair or replacement can prevent worse problems down the line.

Everyday Habits That Could Be Damaging Your Crown

We tend to overlook the little habits that cause big problems. Here’s a quick list of things that wear down crowns faster than you think:

• Nail biting during stress
• Chewing gum constantly (especially the sticky kind)
• Using teeth as tools
• Skipping dental visits
• Letting cavities spread around the crowned tooth

Warning Signs of a Failing Crown

Catch issues early to avoid costly repairs. Look out for:

• A visible crack or chip
• Sharp edges when you run your tongue over the crown
• Sensitivity that wasn’t there before
• Food is getting stuck around the crown
• Bleeding gums near the crowned tooth

How to Protect Your Crown: Smart Prevention Tips

Taking care of your crown isn’t complicated—it just takes a few mindful choices. Here’s what we tell our patients:

Brush and floss daily.

• Use a soft-bristle toothbrush
• Floss gently around the crown to remove plaque
• Consider a water flosser for ease

Avoid sticky or crunchy foods.

• Taffy, caramels, and brittle can loosen the crown
• Crunching ice can crack the porcelain

Wear a nightguard if you grind.

• Ask your dentist near you for a custom-fitted guard.

Schedule regular checkups.

• See your local dentist or a dentist in East York twice a year
• They’ll check the crown’s condition and catch problems early

Say no to DIY repairs.

• Temporary glue or home kits can make the issue worse
• If your crown loosens, call your dentist instead

What to Do if Your Crown Is Damaged

If you notice something off, don’t wait. A damaged crown can let bacteria in and infect the natural tooth underneath.

Here’s what to do:

• Save the crown if it falls out (don’t throw it away)
• Clean your mouth with warm salt water to bring down irritation
• Avoid chewing on that side of your mouth
• Call your nearby dental clinic right away

Your dentist can often recement a crown if you act fast. Waiting could mean a full replacement—or worse, needing a root canal or extraction.

Final Thoughts

It’s easy to think of crowns as a fix-it-and-forget-it solution. But just like your natural teeth, they need care. Avoiding bad habits, seeing your dentist regularly, and staying alert to changes can make all the difference.

If you’re unsure about anything, don’t guess. Reach out to your trusted team at Danforth Village Dental Care. We can guide you regarding cosmetic treatments like dental crowns in East York. Small steps now can prevent big issues later.