Bruxism: why you grind your teeth and how to stop it

In short: bruxism is the involuntary habit of clenching or grinding your teeth, especially at night. It usually goes unnoticed until the consequences appear: worn teeth, sensitivity, jaw pain and headaches. The star treatment is the night guard, a custom protector that prevents the wear while you sleep. Stress is one of its main triggers.

Why do I clench my teeth without realising?

Because bruxism is involuntary and, in large part, nocturnal: it happens while you sleep, so you are not aware of it. The most common causes are stress and anxiety (we clench the jaw as a release), although a misaligned bite or certain habits also play a part. That is why it tends to get worse in stressful or very busy periods.

How do I know I have it?

Bruxism is silent, but it leaves clues. Suspect it if:

• You wake up with a tense jaw or a headache, especially around the temples.
• You notice your teeth are sensitive or you see them flattened / worn down.
• You have clicking or discomfort when opening your mouth.
• Someone has heard you grind your teeth at night.

At a check-up, the dentist quickly recognises the characteristic wear of the enamel, often before you notice anything. It is one of the things detected at a simple preventive check-up.

Why is it important to treat it?

Because clenching hard, night after night, wears down and fractures. Over time it can:

• File down the enamel and leave the teeth sensitive (related to sensitive teeth).
• Break teeth, fillings or even crowns.
• Overload the jaw joint and cause neck and head pain.

The sooner it is halted, the less irreversible damage.

How is it treated?

The most common and effective treatment is the night guard: a transparent shield, made to measure, that you wear to sleep. It does not “cure” the habit, but it protects the teeth from wear and relaxes the muscles, so you wake up feeling better.

It is also worth tackling the cause: managing stress, looking after your sleep and, if the bite is misaligned, having it assessed. In some cases the dentist may suggest other measures depending on your situation.

If you wake up with a tired jaw or you see your teeth worn down, do not let it slide: bruxism does not ease off on its own. Come in for a check-up and we will assess it. The first visit is free. Book an appointment whenever suits you.