Teeth Grinding: Signs, Damage and Treatment

Most people who grind their teeth do it while asleep and have no idea until a dentist points out the wear. Left alone, grinding flattens teeth, cracks them, and strains the jaw joint.

Signs you may be grinding

Jaw ache or tired jaw muscles in the morning.
Headaches around the temples on waking.
Teeth that look flattened, shortened or chipped at the edges.
Increased sensitivity, as worn enamel exposes the layer beneath.
A partner who hears grinding at night.
Marks along the edge of the tongue or ridges inside the cheeks.
Repeated failures of fillings or crowns.

What causes it

Stress and anxiety are the most common triggers, but sleep problems, bite irregularities, certain medicines, caffeine, alcohol and tobacco all contribute. Often more than one factor is involved.

What the damage looks like over time

Enamel wears first, then the softer layer beneath wears faster, so the process accelerates. Teeth become shorter and more sensitive, cracks appear, and restorations fail repeatedly. In advanced cases the bite collapses enough to need extensive rebuilding — which is why early management is worth it.

How it is managed

A night guard. A custom-made guard absorbs the forces and protects the teeth. It manages the damage rather than curing the habit.
Treating the cause where possible: stress management, sleep quality, reducing caffeine and alcohol in the evening.
Repairing existing damage with bonding, crowns or, where wear is extensive, full mouth rehabilitation.
Reviewing the bite, as an uneven bite can contribute.

Common questions

Will a shop-bought guard do? A guard that does not fit your teeth can shift the bite and make matters worse. A custom guard is fitted to your mouth.

Does grinding cause jaw joint problems? It can contribute to jaw pain and restricted opening, which is assessed separately.

Can grinding be cured? The habit may reduce when the cause is addressed, but protecting the teeth matters in the meantime.