Teeth Grinding (Bruxism): Causes, Signs and Treatment Options

Teeth grinding, also known as bruxism, is a common dental concern that affects many Australians. Whether it happens during the day or at night, bruxism can impact your oral health and overall well-being.

In this guide, we’ll explore the causes, signs, and treatment options available, so you can take steps to protect your teeth and relieve discomfort.

What Is Bruxism (Teeth Grinding)?

Bruxism is the involuntary clenching, gnashing, or grinding of teeth. It can occur during the day—often linked to stress or concentration—or at night, when it usually goes unnoticed but can be just as damaging.

Daytime vs Nocturnal Grinding

• Daytime bruxism often happens when you’re stressed, focused, or anxious. You might notice jaw tension or find yourself clenching teeth without realising it.
• Night-time bruxism is more difficult to detect. Many people only discover they grind their teeth after waking with jaw pain or through the observation of a sleeping partner.

In Australia, research suggests that around 8–10% of adults regularly grind their teeth, with a higher prevalence in people experiencing stress or sleep disorders. Children may also grind their teeth occasionally, often related to growth or developmental changes.

Signs and Symptoms of Teeth Grinding

Early detection is important to prevent long-term effects. Common clenching teeth symptoms include:

• Worn enamel – Teeth may appear flattened or shortened over time.
• Jaw pain or stiffness – You might notice soreness, especially in the mornings.
• Headaches or facial pain – Grinding can trigger tension headaches or tenderness around your temples.
• Tooth sensitivity – Exposed dentine can make teeth more sensitive to hot, cold, or sweet foods.
• Chipped or cracked teeth – Persistent pressure can weaken enamel.
• Disrupted sleep – Night grinding can interrupt restful sleep for both you and your partner.

If you notice any combination of these signs, it’s worth discussing with a dentist in Casula or nearby suburbs like Liverpool or Prestons.

What Causes Teeth Grinding?

Teeth grinding is often multifactorial. Common jaw clenching causes include:

1. Stress and Anxiety – Mental tension is the most frequently reported trigger for bruxism.
2. Sleep Disorders – Conditions like sleep apnoea or insomnia can contribute to nocturnal grinding.
3. Misaligned Bite – Uneven teeth or jaw alignment may increase the risk of grinding.
4. Medicine Side Effects – Certain antidepressants or stimulants may heighten muscle activity at night.
5. Lifestyle Factors – High caffeine intake, alcohol consumption, and smoking can all aggravate bruxism.

Understanding what triggers your teeth grinding can help guide the most effective management plan.

The Effects of Untreated Bruxism

While it’s important not to panic, untreated bruxism can gradually affect oral and facial health:

• Tooth damage – Enamel wear, chips, or cracks may develop over time.
• TMJ (Temporomandibular Joint) disorders – Jaw pain, clicking, or limited movement can occur.
• Chronic headaches – Frequent tension headaches may develop due to jaw muscle strain.
• Gum recession – Aggressive clenching can contribute to gum tissue stress.

Addressing teeth grinding early can prevent these issues and improve comfort, sleep quality, and overall oral health.

Treatment Options for Teeth Grinding

Dentists offer several approaches for managing bruxism, tailored to the individual:

1. Custom Occlusal Splint / Night Guard

A bruxism mouthguard is one of the most effective ways to keep your teeth from grinding at night.

2. Stress Management

Techniques like mindfulness, meditation, or cognitive behavioural therapy can help reduce daytime teeth clenching.

3. Bite Adjustment

In some cases, minor dental corrections may relieve grinding caused by misaligned teeth.

4. Muscle Relaxants

Short-term use of muscle relaxants or anti-inflammatory medications may be recommended for jaw discomfort.

5. Botox

In select cases, Botox injections can help reduce severe jaw clenching by relaxing overactive muscles.

How a Custom Night Guard Works

A personalised night guard is made to fit your teeth comfortably and acts as a barrier to protect them from grinding pressures.

1. Impressions – Your dentist takes precise moulds of your teeth.
2. Lab Fabrication – To guarantee a precise fit, the night guard is manufactured in a dental laboratory.
3. Fitting and Adjustments – Your dentist checks comfort, making minor modifications if needed.

Custom vs Over-the-Counter Night Guards

Feature	Custom Night Guard	Over-the-Counter Guard
Fit	Perfectly moulded	One-size-fits-most
Comfort	Highly comfortable	May feel bulky
Durability	Long-lasting	Less durable
Protection	Optimised for your bite	Limited protection
Adjustment	Easily modified	Not adjustable

Customised guards are generally more effective and comfortable for long-term use.

Tips to Reduce Teeth Grinding at Home

Additionally, you might do the following practical things to lessen night-time teeth grinding:

• Stress Reduction – Try relaxation techniques before bed.
• Jaw Exercises – Gentle stretching and massage can ease tension.
• Avoid Stimulants – Reduce caffeine and alcohol, especially in the evening.
• Warm Compress – Apply to the jaw muscles to relax them before sleep.
• Sleep Position – Sleeping on your back may reduce pressure on your jaw.

Consistency is key—these strategies work best alongside professional treatment.

FAQ About Teeth Grinding

Can children grind their teeth?

Yes. It’s common in children and often linked to growth. Most outgrow it, but persistent cases should be evaluated.

Does grinding cause headaches?

Yes, clenching muscles can trigger tension headaches or facial pain.

How long does a night guard last?

Depending on use and maintenance, custom night guards can last three to five years.

Can teeth grinding be cured?

While stress or bite-related triggers can’t always be eliminated completely, bruxism can be effectively managed to protect your teeth and reduce discomfort.

Teeth Grinding Management in Casula

Managing teeth grinding doesn’t have to be stressful. With the right combination of professional treatment, at-home strategies, and regular dental check-ups, you can protect your smile and enjoy more restful sleep.

If you’re experiencing teeth grinding at night or noticing jaw discomfort, it’s important to act early. At our Casula dental clinic, we provide customised night guards and personalised advice for managing bruxism.

We welcome patients from Casula, Liverpool, Prestons, Moorebank, and Hammondville. Our team can assess your symptoms, discuss treatment options, and create a plan that suits your lifestyle.

Call us at (02) 9199 9695 or book online to arrange a consultation. Visit us at Shop 17A Casula Mall, 1 Ingham Drive, Casula for professional care and guidance.