Teeth Grinding (Bruxism) – Causes, Symptoms and Treatment

Teeth grinding or clenching also known as bruxism, is a condition that many people may not even realise they have. Because it often happens during sleep, it is usually a partner, family member, or the appearance of symptoms that first brings it to attention.

Common Symptoms of Teeth Grinding

  • Worn-down, chipped, or fractured teeth and fillings
  • Increased tooth sensitivity
  • Dull headaches or jaw pain, particularly in the morning
  • Tightness in the jaw muscles or stiffness in the face
  • Earaches without an ear infection
  • Discomfort when chewing, especially at breakfast
  • Noticeable clenching during the day

If you notice any of these issues, it is important to let your dentist know so they can assess whether teeth grinding may be the cause.

Potential Complications

Over time, untreated teeth grinding can cause:

  • Cracks in the enamel (the protective outer layer of teeth)
  • Broken teeth, crowns, or fillings
  • Increased tooth sensitivity to temperature
  • Pain when biting or chewing
  • Jaw joint (TMJ) discomfort

Early diagnosis and management can help reduce the risk of long-term damage.

Causes of Teeth Grinding

The causes of bruxism can be physical or emotional and may include:

  • Stress and anxiety
  • Sleep disorders
  • Poor bite alignment
  • Lifestyle factors (e.g., alcohol, caffeine, certain medications)

Sometimes both physical and emotional factors need to be considered when planning treatment.

Nightguards

A custom-fitted nightguard can help protect teeth from the forces of grinding and clenching during sleep. These guards are made by a dentist to fit your mouth securely and comfortably.

Compared with over-the-counter nightguards, custom nightguards:

  • Provide better protection
  • Fit securely and comfortably
  • Allow normal breathing and speaking

When properly fitted, cared for, and checked regularly at dental appointments, a custom nightguard can last several years.

Management and Support

If you think you may be grinding or clenching your teeth, let your dentist know. Depending on your individual situation, treatment may include:

  • A custom-fitted nightguard
  • Restoring damaged teeth with fillings or crowns
  • Advice or referral to address contributing factors such as stress, nutrition, or sleep concerns

To learn more or book an appointment, contact Morphett Vale Dental Care on (08) 8382 2410.

Disclaimer: The information above is general in nature and is not a substitute for professional diagnosis or treatment. For personalised advice, please consult your dentist or healthcare provider.

Written by Dr Erika Guerra (Dentist) | AHPRA Registration Number: DEN0001411499