★★★★★ Loved by customers across the US
Custom Night Guards for teeth grinding
70% Cheaper than Dentist Made
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Skip the impression kit — we already have your mold on file. Reorder direct and take 30% off with your exclusive code.
Which Guard Is Right for Me?
Match your grinding intensity to the right thickness — thinner feels more natural, thicker lasts longer.
Hybrid · 1.0 / 2.0 / 3.0mm MOST POPULAR
Our most popular. Dual-layer guard for light to severe grinding: 1.0mm for maximum comfort, 3.0mm for maximum protection. First time? Start with the 2.0mm.
Hard · 3.0mm
For severe grinding. Rigid 3.0mm acrylic stands up to the heaviest bite forces, night after night.
Soft · 2.0mm
For light grinding. Soft, flexible 2.0mm profile, gentle on sensitive teeth.
Still not sure? Take our quick 30-second quiz and get a personalized recommendation →
Thickness guide: comfort vs. durability
- More comfortable and easier to talk in — but less protection for heavy grinding.
- Maximum protection and durability — but a little more noticeable.
Not sure? The 2.0mm Hybrid is the safe middle ground — or just ask us.
How it Works, Three steps from your door, back to your door.
Order the kit, take your impression at home, and we handle the rest.
Your kit includes:
How to take a perfect impression
Why go custom?
Made for your teeth, not everyone’s
A custom guard is built from a mold of your teeth, so it stays put all night — no bulk, no slipping. Store-bought guards are softened in hot water and shaped by guesswork; they often feel loose or pop out.
Real protection where it counts
Grinding force gets spread across your whole bite instead of hammering individual teeth — less wear, fewer chips, and less stress on crowns and veneers.
Safe materials, U.S. lab
Biocompatible, BPA-free materials, crafted in a controlled U.S. dental lab. Consistent quality, guard after guard.
What to expect
A night guard protects your teeth from the effects of grinding and clenching. Pair it with good sleep habits and your dentist’s advice for the best results.
How Do Night Guards Work?
A barrier against wear
The guard sits between your upper and lower teeth, so grinding wears down the guard — not your enamel.
Spreads the pressure
Instead of concentrating force on a few teeth, a custom guard distributes it across your bite — easier on teeth and dental work.
Eases jaw tension
By supporting a neutral jaw position, a custom guard can calm the overworked muscles behind morning jaw soreness.
One important note
If you snore loudly, gasp during sleep, or feel wiped out during the day, talk to your doctor — those can be signs of sleep apnea.
Why OKI ?
60-night guarantee
Love it or send it back. Return or replace your guard within 60 nights — free.
Real human support
Questions about your impression, upper vs. lower, or thickness? Message us — you’ll get a practical answer, not a script.
Made for every night
From the simple at-home kit to a slim, low-bulk fit — designed to be comfortable enough to wear nightly.
Crafted in a U.S. lab
Trained technicians build your guard from your impression, then finish and polish it for comfort and clarity.
Free shipping both ways
Free standard shipping across the continental U.S. — the kit to you, your impression back to us, and your finished guard home.
Dentist recommendations
Upper vs. lower
Upper guards are the most common — comfortable and secure. Lower guards suit strong gag reflexes or extensive upper dental work. Torn? We’ll help you choose.
Picking your thickness
- Mild grinding: 1.0mm, slim and discreet.
- Moderate: 2.0mm, the all-rounder.
- Heavy: 3.0mm for maximum protection.
When to replace
Cracks, warping, deep grooves, or a guard that starts feeling loose — those are your cues. Bring it along to dental checkups.
Cleaning do’s and don’ts
Do: cool water, mild soap, soft brush. Don’t: hot water, bleach, abrasive toothpaste, or the dishwasher.
Avoid: Hot water (warping), bleach or alcohol soaks (unless instructed), abrasive toothpaste, dishwashers.
Waking up sore?
Morning headaches, jaw aches, or sensitive teeth? You’re not alone — millions grind their teeth in their sleep. Protect your smile starting tonight.
Shop Our Custom Night Guards
Hybrid Night Guards
Our most popular. Soft inside, tough outside — dual-layer protection for light to severe grinding, without the bulk.
Hard Night Guards
Maximum durability for severe grinding. Rigid 3.0mm acrylic built for the heaviest bite forces.
Soft Night Guards
Flexible 2.0mm comfort for light grinding — gentle on sensitive teeth and gums.
Retainers
Keep your post-braces or post-Invisalign smile in place. Custom-fit, snug, and discreet.
It starts with a 15-minute impression at home. It ends with a guard made only for you.