Dental Emergency

Can Teeth Grinding Crack Your Teeth? Signs of Bruxism You Shouldn’t Ignore

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A Real Problem Many Patients Don’t See Coming

Teeth grinding (bruxism) is a common problem many patients don’t realise they have. At Ferry Dental Centre in Southampton, we regularly see cases where teeth become worn, cracked, or even break due to grinding during sleep.


We recently saw a patient who woke up with a cracked molar. There was no accident or warning. It happened overnight. The tooth was one of the strongest in the mouth. Unfortunately, the crack was so severe that the only option was extraction. In many cases like this, the cause is teeth grinding (bruxism).

Can Grinding Really Crack a Tooth?

Yes — and it happens more often than people think. Grinding puts repeated pressure on teeth, weakening them over time. This can lead to:

  • Small cracks
  • Sudden fractures
  • Damage to otherwise healthy teeth

This often happens at night, when you are not aware of it. If you think you may have a cracked tooth or are in pain, contact Ferry Dental Centre in Southampton for an emergency appointment.

Severe tooth fracture caused by teeth grinding (bruxism) during sleep

What Is Bruxism?

Bruxism means grinding your teeth, usually during sleep. Stress is the most common contributing factor.

Many people do not realise they grind until damage appears.

How Do I Know If I Grind My Teeth?

There are several common signs:

  • Teeth that look shorter or worn down
  • Flattened or chipped edges
  • Jaw pain or tightness, especially in the morning
  • Neck or shoulder discomfort
  • Grinding noises noticed by a partner
  • A scalloped tongue (marks along the sides)
Scalloped tongue with visible indentations along the edges, commonly associated with teeth grinding or clenching during sleep (bruxism).
Scalloped tongue showing signs of teeth grinding (bruxism)
Severely worn and shortened showing enamel loss caused by long-term teeth grinding (bruxism)
Severe tooth wear with shortened teeth, commonly caused by chronic grinding or clenching (bruxism).

If you notice any of these, it’s worth checking.

How We Check for Grinding (Brux Checker)

At Ferry Dental Centre, we use a simple way to confirm grinding. A Brux Checker is a thin, custom-made appliance worn for one night. It shows patterns of grinding.

Brux Checker appliance after use showing visible contact points and wear patterns indicating areas of teeth grinding and clenching during sleep.
Brux Checker showing clear grinding patterns where the teeth meet during sleep

What Happens If Grinding Is Confirmed?

If grinding is confirmed, we usually recommend a custom night splint. This helps to:

  • Protect your teeth
  • Reduce pressure on the jaw
  • Prevent further damage

It is simple and effective.

Clear upper dental night splint fitted over upper teeth to protect against bruxism and reduce tooth grinding during sleep.
Night splint fitted over teeth to protect against grinding during sleep

When Should You Take Action?

Do not wait until a tooth breaks. If you:

  • Notice worn teeth
  • Have jaw discomfort
  • Suspect grinding

It’s best to check early. At Ferry Dental Centre in Southampton, we can assess your teeth and confirm whether grinding is present. We welcome both new and existing patients — you can contact us here to arrange an appointment. Early diagnosis helps prevent serious damage and protects your natural teeth.

Bruxism Frequently Asked Questions

Can teeth grinding happen without symptoms?

Yes. Many people grind their teeth without realising it, especially at night. In the early stages, it may not cause noticeable symptoms, but over time signs such as tooth wear or jaw discomfort can begin to develop.

Is grinding always caused by stress?

Stress is the main contributing factor.

Can bruxism be stopped completely?

It can be managed. A night splint protects your teeth and reduces damage.

Is a cracked tooth always extracted?

Not always. But if the crack is severe, extraction may be the only option.

How do I know if I need a brux checker?

If you have signs of wear, jaw pain, or unexplained damage, it’s worth assessing.

Book an Assessment

If you are concerned about grinding or changes in your teeth, contact Ferry Dental Centre in Southampton. A simple check now can prevent more serious problems later.

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