Short answer: start with free habits and a dentist check, then buy a guard only if your teeth need protecting. A cheap guard can be a fair choice, but it may wear out faster.
Here’s the order I’d spend in, from nothing to something.
Key Takeaways
- Free first. In a 66-person trial, sleep hygiene plus muscle relaxation lowered grinding episodes about as much as a splint did.
- A cheap guard can work. In a 43-person trial, a low-cost mixed splint and a rigid splint both reduced pain, though the mixed one showed more wear.
- Don’t expect a cure. Reviews found insufficient evidence that splints stop the grinding itself.
Step One: What Can You Try for Free?
Nothing here costs a cent, and it’s the same advice a dentist would start with. In a 2024 randomized trial of 66 people, a sleep hygiene and progressive muscle relaxation program reduced grinding episodes and perceived stress.

An occlusal device did too, and the authors found no significant difference between the two groups.
Try these for two weeks:
- Keep a steady bedtime and a dim, quiet last hour.
- Tense and release your face, neck, and shoulders slowly.
- Remind yourself during the day: lips together, teeth apart.
- Cut late caffeine and alcohol and see how mornings feel.
Step Two: Is a Dentist Visit Worth It?
Yes, and it often pays for itself. A dentist can see wear you can’t, rule out other causes of jaw pain, and tell you whether a guard is worth buying at all.
Ask whether you need a custom guard or whether a cheaper one will do. It’s a better question than guessing from a product page.
Step Three: Should You Buy a Cheap Guard?
Maybe, if your dentist agrees.
A 2024 trial of 43 adults compared a rigid splint with a low-cost mixed splint. Both reduced pain, and the mixed splint showed higher wear.
That wear matters for your wallet. A cheaper guard you replace often can cost as much as a better one that lasts.
Our five questions to ask before choosing a snoring device works the same way for anything you wear in your mouth.
Step Four: Will Any Guard Fix the Habit?
Don’t count on it. A Cochrane review of five trials found no significant difference for splints on the one outcome it could pool, and a 2021 systematic review found insufficient evidence too.
A guard protects enamel, and that alone can be worth the money if your teeth are wearing down.
Step Five: What If You Also Snore or Wake Up Gasping?
Then spend on finding out why before you spend on the mouth. Our cheapest-first order for gasping at night shows how to sort that out without overbuying.
If snoring is the bigger problem, see ZQuiet or CPAP: a five-question decision guide and our ranking of dry throat fixes by cost.
When Should You See a Dentist or Doctor?
See a dentist for chipped or loose teeth, a jaw that clicks or locks, or pain that doesn’t ease. See a doctor if grinding comes with loud snoring, gasping, or heavy daytime sleepiness.
Frequently Asked Questions
Your Next Step: Try the Free Routine First
Give the evening routine two weeks and note how your jaw feels. If the soreness stays, book a dental visit and bring your notes.
