Bruxism (teeth grinding)

Bruxism is the habitual grinding of teeth and clenching of the jaw, often during sleep or under stress. Over time it can cause jaw ache, headaches, worn teeth and a squarer, heavier look to the lower face as the jaw muscle enlarges.

Treatment at Leela Cosmedica is led by cosmetic physician Dr Lauren Lee, who assesses the jaw and discusses options to ease the muscle tension behind the grinding and soften the jawline.

What is bruxism?

Bruxism is the involuntary grinding of teeth and clenching of the jaw, often without you realising. It comes in two forms: awake bruxism, usually linked to stress or concentration, and sleep bruxism, which happens during sleep and is often harder to notice and more wearing on the teeth.

What causes bruxism?

There is rarely a single cause. Stress and anxiety are common threads, and caffeine, alcohol, smoking and some medications can contribute. Sleep bruxism is also linked to sleep apnoea. Over time the repeated clenching overworks the jaw-closing muscle, which can enlarge it and give the lower face a squarer, heavier look.

What are the signs and effects?

Common signs include morning headaches, an aching jaw or face, earache, pain when eating and difficulty opening or closing the mouth. Left unmanaged, it can wear or crack teeth and strain the jaw joint. Many people first hear of it from a dentist, or from a partner who notices the grinding.

How is bruxism treated?

A dentist may fit a custom night guard to protect the teeth, and managing stress and cutting back on caffeine and alcohol often helps. Where the jaw muscle is overactive or enlarged, injections that relax that muscle can ease the clenching and soften the jawline. The effect is temporary and maintained over time. Dr Lauren assesses your jaw and explains the options, their risks and their benefits.

When to see a dentist or doctor

See a dentist or doctor if the grinding happens most nights, your teeth show wear or damage, or you have ongoing jaw pain or limited movement. Where sleep apnoea is suspected, a sleep study may be suggested.