Cracked Molars from Teeth Grinding: Causes, Symptoms & Treatments

Do you wake up with jaw pain, headaches, or sensitive teeth? You may be grinding your teeth at night without even realising it. Over time, this condition—known as bruxism—can cause serious dental damage, including cracked molars.

At Pain Free Dentist Sydney, we help patients protect their teeth and restore damaged smiles with gentle, effective treatments.

How Teeth Grinding Damages Molars

When you grind or clench your teeth (often during sleep), the constant pressure can:

  • Wear down enamel

  • Cause cracks or fractures in molars

  • Lead to jaw joint issues (TMJ disorder)

  • Increase tooth sensitivity or pain

Since molars take the brunt of chewing forces, they are the most vulnerable to cracking from grinding.

Symptoms of Cracked Molars

Not all cracks are visible. Signs you may have a cracked tooth include:

  • Sharp pain when chewing or biting

  • Sensitivity to hot, cold, or sweet foods

  • Pain that comes and goes

  • Swelling around the affected tooth

  • A visible line or fracture in the tooth (in severe cases)

Treatments for Cracked Molars

Treatment depends on the severity of the crack:

  • Dental bonding – repairs minor cracks and restores appearance

  • Dental crown – protects and strengthens weakened molars

  • Root canal therapy – if the crack has reached the tooth’s nerve

  • Extraction and replacement – in cases where the tooth is beyond saving, options include dental implants or bridges

Preventing Further Damage from Teeth Grinding

Stopping grinding is key to protecting your teeth long-term. At Pain Free Dentist Sydney, we may recommend:

  • Custom night guards – to protect teeth while sleeping

  • Stress management techniques – since stress often worsens grinding

  • Botox for bruxism – relaxes overactive jaw muscles and reduces grinding forces

  • Regular dental checkups – to catch early signs of wear before cracks worsen

Book Your Bruxism & Cracked Tooth Consultation

If you suspect you’ve cracked a molar or suffer from teeth grinding, don’t ignore it—early treatment prevents more serious problems. At Pain Free Dentist Sydney, we provide gentle, tailored solutions to restore comfort and protect your smile.

📍 Visit us online: Book Now
📞 Call us on 9558 8988
📧 Email: info@painfreedentistsydney.com.au

Protect your teeth today for a stronger, healthier smile tomorrow.