Teeth Grinding Symptoms: Could Bruxism Be Causing Your Pain?
Waking up with a sore jaw, a dull headache or sensitive teeth can be frustrating—especially when the cause is not obvious. For many people, these symptoms are linked to bruxism, the involuntary clenching or grinding of teeth.
Bruxism can happen while you are asleep or during the day. Because sleep bruxism occurs unconsciously, many people do not realise they are doing it until a partner hears grinding at night, or their dentist identifies changes to their teeth.
What is bruxism?
Bruxism is excessive grinding or clenching that is not part of normal chewing. Over time, the pressure placed on the teeth, jaw muscles and jaw joints can lead to tooth wear, cracking, discomfort and other long-term dental concerns.
Some people mainly clench their teeth. This may cause muscle tightness and facial pain without immediately obvious tooth damage. Others grind their teeth, often leading to worn, flattened or chipped teeth as well as jaw symptoms.
Common signs of teeth grinding
Bruxism can look different from person to person, but possible signs include:
- Jaw pain or stiffness, particularly on waking
- Tension headaches or frequent morning headaches
- Facial pain, neck pain or shoulder tension
- Tooth sensitivity to hot, cold or sweet foods
- Teeth that look flatter, shorter or more worn than before
- Chipped, fractured or cracked teeth
- Damaged fillings, crowns or other restorations
- Clicking, popping or discomfort around the jaw joint
- A partner noticing grinding noises during sleep
- A feeling that your teeth no longer meet comfortably
It is important to remember that symptoms can develop gradually. You may not notice tooth wear until it has become more significant, which is why regular dental examinations are valuable.
Why does bruxism happen?
The exact cause of bruxism is not always clear. However, several factors may contribute, including stress, poor sleep, certain medications, alcohol consumption and sleep disorders.
Daytime clenching is often associated with concentration, stress or anxiety. For example, you may notice yourself tightening your jaw while driving, working at a computer, exercising or dealing with a demanding situation.
Night-time grinding can be harder to identify without an examination. If you wake with a tired jaw or persistent headaches, it is worth discussing the possibility of bruxism with your dentist.
Can bruxism damage teeth?
Yes. Teeth are designed to withstand the normal forces of biting and chewing, but repeated grinding can place much greater pressure on them. Continued bruxism may contribute to:
- Enamel wear
- Cracks and fractures
- Loosened teeth
- Damage to fillings, crowns and veneers
- Increased sensitivity
- Strain on the temporomandibular joint (TMJ)
Once tooth structure has been worn away, it does not grow back. Early assessment can help identify signs before more extensive dental treatment is needed.
How can a dentist help?
A dentist will assess your teeth, bite, jaw muscles and jaw joint, as well as discuss your medical history and symptoms. If sleep bruxism is suspected, one common management option is an occlusal splint.
An occlusal splint is a strong acrylic appliance worn over the teeth while sleeping. It creates a protective barrier between the upper and lower teeth, helping reduce direct tooth-on-tooth contact.
Depending on your needs, your dentist may also discuss ways to manage contributing factors, such as daytime clenching habits, stress, jaw tension or potential sleep concerns.
When to book an appointment
Book a dental assessment if you have persistent jaw pain, headaches, tooth sensitivity, visible tooth wear, repeated broken fillings or a tooth that feels cracked. Prompt attention can help protect your teeth and identify the most appropriate management plan.
For more information about assessment and treatment options, visit Mason Square Dental’s Bruxism service page
