Bruxism (Teeth Grinding and Jaw Clenching)

Bruxism refers to involuntary teeth grinding or jaw clenching, often occurring during sleep or periods of stress. It is a common cause of jaw pain, headaches, and migraines, and can also contribute to temporomandibular joint (TMJ) dysfunction and tooth wear.

Many patients are unaware they have bruxism until symptoms such as morning headaches, jaw tightness, or facial pain develop.

How bruxism causes headaches and migraines

Overactivity of the jaw muscles (particularly the masseter and temporalis) can place sustained tension on the head and neck.

This may lead to:

• Tension-type headaches
• Migraine exacerbation
• Facial pain and pressure
• Neck and shoulder tightness

Treating the underlying muscle overactivity can significantly reduce these symptoms.

How treatment works

Botulinum toxin is injected into the masseter and temporalis muscles to reduce excessive muscle activity.

This can:

• Relieve jaw tension
• Reduce headaches and migraines
• Improve comfort when chewing or speaking
• Help prevent further dental damage

Treatment is tailored based on symptom pattern and muscle involvement.

Who this is for

This treatment may be suitable for patients with:

• Jaw clenching or teeth grinding (awake or during sleep)
• Chronic headaches or migraines with a muscular component
• TMJ-related pain
• Facial muscle tightness or fatigue
• Limited benefit from mouthguards or other conservative measures

What to expect

• Performed in clinic
• Targeted injections to jaw muscles
• Typically takes 10–20 minutes
• Minimal downtime
• Effects usually begin within 1–2 weeks and last 3–6 months

How this differs from other treatments

Unlike mouthguards or medications, botulinum toxin directly targets the source of muscle overactivity.

• Mouthguards protect teeth but do not reduce muscle tension
• Pain medications provide temporary relief only
• Botulinum toxin reduces the underlying muscle activity

This makes it a useful option for patients with persistent symptoms.

Why GC Rehab

Specialist rehabilitation physician with experience in movement disorders and ultrasound-guided injections.

FAQs

Can this help migraines?
Yes, particularly when migraines are triggered or worsened by jaw muscle tension.

Will it affect chewing?
Treatment is targeted to reduce overactivity while preserving normal function.

How long does it last?
Typically 3–6 months.

Is it safe?
Yes when performed by an experienced clinician.