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Published On: October 9, 2026Categories: Check-ups5.6 min read

Do You Grind Your Teeth at Night? Signs to Look Out For

You may think you would know if you were grinding your teeth. However, because it often happens during sleep, many people remain unaware of it until their partner hears the noise or their dentist notices signs of wear.

Teeth grinding—also known as bruxism—does not always require treatment. But when it begins causing discomfort, sensitivity or damage to the teeth, it is worth arranging a dental assessment.

Here are some of the signs to look out for and how your dentist can help.

What Is Teeth Grinding?

Teeth grinding describes repeatedly moving the teeth against each other. Bruxism also includes jaw clenching, where the teeth are held together with sustained pressure.

It can happen while you are awake or asleep. Daytime clenching may occur when you are concentrating, driving or feeling under pressure. Nighttime grinding is harder to recognise because it happens without conscious control.

Not everybody who grinds their teeth will experience significant problems. The frequency and force involved, along with the condition of your teeth, can influence whether damage or discomfort develops.

What Causes Teeth Grinding at Night?

There is not always one clear cause. Teeth grinding may be associated with several factors, including:

  • Stress or anxiety
  • Disturbed or poor-quality sleep
  • Some medicines
  • Smoking
  • Alcohol or caffeine consumption
  • Certain sleep-related conditions

It is important not to diagnose the cause yourself. A dentist can examine your teeth and jaw, discuss your symptoms and determine whether further investigation may be appropriate.

Signs You May Be Grinding Your Teeth

You Wake Up With a Tight or Tired Jaw

Jaw tension upon waking can be one possible sign of nighttime clenching or grinding.

Your jaw may feel tired, stiff or uncomfortable around the cheeks, temples or ears. The discomfort may ease as the day progresses before returning the following morning.

Jaw discomfort has several possible causes, however, so a professional assessment is needed rather than assuming that grinding is responsible.

Your Teeth Look Worn or Flattened

Repeated tooth-to-tooth contact can gradually wear down the biting surfaces.

Your dentist may notice that certain teeth appear flatter, shorter or unusually smooth. Small cracks, chips or damaged restorations may also develop when teeth are subjected to repeated pressure.

Because these changes can happen slowly, they are often easier for a dentist to identify during regular examinations.

Your Teeth Have Become More Sensitive

As the protective outer surface of a tooth wears, the layers beneath it can become more exposed.

This may cause increased sensitivity when eating or drinking something hot, cold or sweet. However, sensitivity can have many causes, including decay, gum recession and damaged fillings.

An examination will help identify the source of the problem and the appropriate way to manage it.

You Experience Morning Headaches

Some people who clench or grind their teeth report headaches around the temples, particularly after waking.

Headaches are common and can have numerous causes, so they should not be treated as proof of bruxism. If headaches are frequent, severe or accompanied by other symptoms, you should seek appropriate medical advice.

Someone Hears You Grinding During Sleep

A partner or family member may hear grinding or scraping sounds while you sleep.

This can be one of the clearest indications that nighttime grinding may be occurring, although silent jaw clenching can still place considerable pressure on the teeth.

Fillings, Crowns or Teeth Keep Chipping

Repeated pressure can affect natural teeth and existing dental restorations.

If fillings, crowns or veneers repeatedly chip or fracture, your dentist may investigate whether grinding or clenching is contributing to the problem. Other possible causes must also be considered, including decay, accidental damage and how the teeth meet.

What Can Happen If Teeth Grinding Continues?

Occasional grinding may not cause lasting harm. More persistent or forceful bruxism can potentially contribute to:

  • Worn or flattened teeth
  • Chipped or cracked teeth
  • Increased sensitivity
  • Damage to fillings or other restorations
  • Jaw or facial discomfort
  • Disrupted sleep

Changes often develop gradually, which is why regular dental examinations are valuable. Early signs may be visible before you notice any discomfort yourself.

How Does a Dentist Check for Teeth Grinding?

Your dentist will ask about your symptoms, sleep, general health and any changes you have noticed.

They may then examine:

  • Wear patterns on the teeth
  • Cracks, chips or damaged restorations
  • Areas of sensitivity
  • Your jaw movement
  • Tenderness around the jaw muscles
  • The way your teeth meet

Clinical photographs, impressions or digital records may sometimes be helpful for monitoring changes over time.

The aim is not simply to identify wear. It is to understand what may be causing it and whether treatment or ongoing monitoring is appropriate.

Can a Night Guard Help?

A dentist may recommend a custom-made night guard or dental splint in suitable cases.

It is worn over the teeth while you sleep and can help protect them from further wear or fracture. A professionally made appliance is designed to fit your mouth precisely and should be checked regularly by your dentist.

A guard protects the teeth, but it may not remove the underlying reason for grinding. Managing factors such as stress or disrupted sleep may form another part of the overall approach.

Treatment is not necessary for everyone. The most suitable recommendation will depend on your symptoms, the condition of your teeth and the findings from your assessment.

What Can You Do in the Meantime?

Simple changes may help reduce jaw tension and protect your comfort:

  • Notice whether you clench during the day
  • Keep your jaw relaxed, with your teeth slightly apart when you are not eating
  • Avoid chewing pens, fingernails or gum
  • Develop a regular, relaxing bedtime routine
  • Consider reducing caffeine or alcohol, particularly later in the day
  • Speak to a healthcare professional if stress, anxiety or poor sleep is affecting you

These steps are not a substitute for an assessment if you are experiencing persistent pain, sensitivity or tooth damage.

When Should You Contact a Dentist?

Arrange an appointment if:

  • Your teeth appear worn, cracked or chipped
  • You have developed persistent sensitivity
  • You regularly wake with jaw or facial discomfort
  • Your partner hears you grinding during sleep
  • Restorations repeatedly become damaged
  • You are concerned about changes to your teeth or bite

Seek medical advice for severe or persistent headaches, significant facial pain or other symptoms that may not have a dental cause.

Arrange a Dental Assessment in Stoke-on-Trent

If you are concerned that you may be grinding your teeth, an examination can help establish whether there are signs of wear and what should happen next.

The Riley Dental Studio provides personalised dental care from its practice in Barlaston, welcoming patients from Stoke-on-Trent and across Staffordshire.

Our team can examine your teeth, listen to your concerns and discuss suitable ways to protect your oral health.

Call 01782 374 330 or contact The Riley Dental Studio to arrange an appointment.