Teeth Grinding and Night Guards: What Bruxism Destroys (and the RM-Something Fix)

Most grinders don't know they grind — the evidence shows up as morning jaw ache, unexplained headaches, or a dentist frowning at flattened molars. Bruxism is boring right up until it's expensive: cracked teeth, dead nerves, and worn-through enamel are all downstream of untreated grinding. Here's how to recognise it and what actually protects your teeth.

Signs you grind (that you can check today)

• Jaw muscles tired or tight on waking; temple headaches in the morning

• Teeth that look flattened, chipped at the edges, or shorter than they used to

• Increased sensitivity (enamel wear exposes dentine)

• Scalloped tongue edges or cheek ridges (you're clenching against them)

• A partner who can hear it — grinding is loud

Daytime clenching counts too: if your teeth are touching right now while you read this, that's it. (Teeth should only meet when chewing — the rest is jaw tension.)

What grinding actually costs you over time

Grinding forces are multiples of normal chewing pressure, applied for hours, nightly. The damage ladder: enamel wear → sensitivity → chips and cracks → cracked-tooth syndrome (pain on biting that's notoriously hard to diagnose) → root canals for cracked nerves → crowns to rebuild what's left. Grinders also loosen dental work: fillings, crowns and implants all dislike bruxism. A night guard is cheap insurance against every rung of that ladder.

Custom night guard vs pharmacy boil-and-bite

A pharmacy guard is bulky, drops out at night, and distributes force unevenly — many people quietly stop wearing them within weeks, which protects nothing. A custom night guard is made from a scan or impression of your teeth: slimmer, secure, and built to spread grinding forces properly. It's the same custom-fit logic as our sports mouthguards — fit is the difference between a device you wear and a drawer ornament. Expect a custom guard to last years with care; bring it to check-ups so wear can be monitored (the guard wearing down is the system working — better the guard than your enamel).

Can you stop grinding rather than just guard against it?

Sometimes partially. Bruxism tracks with stress, caffeine and alcohol near bedtime, sleep quality, and in some cases sleep apnoea (loud snoring + grinding + daytime exhaustion deserves a doctor conversation, not just a dentist one). Managing those helps — but for most grinders the honest strategy is reduce triggers and protect the teeth while you sleep, because you can't white-knuckle an unconscious habit.

FAQ

Do children grind? Should I worry?

Very common and usually outgrown; mention it at your child's check-up — persistent cases get watched.

Will a night guard stop the headaches?

Frequently yes for morning tension-type headaches — by decoupling the jaw muscles from a night of isometric workout.

How do I clean a night guard?

Cold water and a soft brush daily (hot water warps them), fully dry before casing, occasional denture-cleaner soak.

I already cracked a tooth. Too late for a guard?

It's exactly the moment — the same forces are aimed at the neighbouring teeth. Fix the crack, guard the rest.

Morning jaw ache or a flattening bite? Book an assessment — Teethos Dental can confirm bruxism from the wear pattern in minutes and scan you for a custom guard the same visit.