A lot of people grind or clench their teeth in their sleep without having any idea they're doing it. The clinical name is bruxism, and because it happens while you're unconscious, the first clues are usually indirect, a partner hearing it, or you waking up with symptoms you can't quite explain.
Signs you might be grinding
Common giveaways include waking with a dull headache or aching jaw, teeth that feel sensitive or look worn or flattened, a partner who hears grinding noises at night, and tension or tenderness in the muscles around your jaw and temples. Some people also notice small chips or cracks appearing, or existing dental work wearing down faster than expected.
Why it happens
Bruxism doesn't have a single cause. Stress and anxiety are common contributors, which is why grinding often flares up during difficult periods. Sleep issues, bite alignment, and certain lifestyle factors like caffeine and alcohol can play a part too. Sometimes it's a combination, and identifying the main driver for you helps shape the right response.
Why it's worth addressing
Left unchecked, grinding can wear down enamel, crack teeth, damage fillings and crowns, and contribute to jaw joint problems and ongoing headaches. Because the force applied during sleep can be far greater than normal chewing, the damage adds up over time. Catching it early can save you from more significant (and more expensive) problems down the track.
What actually helps
The most common and effective protection is a custom night guard, a slim, comfortable splint made to fit your teeth that you wear while sleeping. It cushions the teeth and absorbs the force of grinding, protecting both your enamel and any dental work. Unlike bulky over-the-counter versions, a custom-made guard fits properly, which makes it far more comfortable to actually wear.
Beyond the night guard
A guard protects your teeth, but it's also worth looking at what's driving the grinding. Stress-management techniques, better sleep habits, and cutting back on caffeine and alcohol in the evening can all reduce it. If jaw pain is significant, your dentist may suggest additional approaches. The right mix depends on your particular situation.
If this sounds familiar
If you're waking up with sore jaws or headaches, or someone has told you you grind at night, it's worth getting checked. A quick look at your teeth can reveal the tell-tale wear patterns, and a custom night guard is a straightforward way to protect your smile while you sort out the underlying cause.