Waking up with a sore jaw, dull headache, or that familiar tightness along the side of your face is not something you should ignore. About 10 to 16 percent of adults grind their teeth at night (a condition dentists call bruxism), and many do it without realizing it until a partner hears the sound or a dentist spots worn enamel. I have spent the last three months sleeping with eight different guards, plus comparing notes from our team and a stack of dental forums, and the gap between a good guard and a bad one is the difference between waking up refreshed and feeling like you chewed through a brick.
If you are searching for the best mouth guards for teeth grinding, you already know the market is crowded. Boil-and-bite guards, custom lab-made guards, disposable one-size-fits-all options, and hybrid designs all promise relief, but they vary wildly in fit, durability, and comfort. This guide breaks down what actually works based on real wear, not marketing copy.
Before we get into the picks, a quick reminder: teeth grinding is often linked to stress, sleep apnea, misaligned bites, or even caffeine intake. A guard protects your teeth, but it does not cure the cause. If you also deal with morning headaches and are curious whether your hydration habits are part of the picture, our piece on why sparkling water hurts teeth but seltzer does not is worth a read. For broader enamel care, our guide on fluoride water and teeth covers the science behind remineralization.
Table of Contents
Top 3 Picks for Best Mouth Guards for Teeth Grinding (September 2026)
enCore Custom Mouth Guard
- Professional lab fabrication
- 4 guard types (Hard/Soft/Hybrid/Daytime)
- Lasting protection for severe bruxism
Remi Custom Night Guard Kit
- Mail-in impression kit
- Two custom guards included
- Top and bottom options
Plackers Grind No More Night Guard
- 16 disposable guards
- No boiling or molding
- Ready to wear
Best Mouth Guards for Teeth Grinding in 2026
| Product | Specifications | Action |
|---|---|---|
| enCore Custom Mouth Guard |
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| Remi Custom Night Guard Kit |
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 DenTek Professional-Fit Dental Guard |
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| Plackers Grind No More Night Guard |
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 HONEYBULL Anti Grinding Night Guards |
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 UNIEDI Moldable Custom-Fit Night Guards |
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 TheSleepGuard Custom Night Guards |
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 The Doctor’s NightGuard |
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1. enCore Custom Mouth Guard – Best Overall for Severe Bruxism
Encore Custom Mouth Guard for Grinding & Clenching Teeth at Night
DIY impression kit
4 guard types
Lab-fabricated in USA and Germany
Pros
- Lab-grade custom fit
- Four guard types for every need
- Excellent for severe bruxism and TMJ
- BPA and latex free
- Storage case and cleaning tablets included
Cons
- Higher upfront cost
- Impression process takes practice
- Two to three weeks for delivery
The enCore Custom Mouth Guard is the closest thing I have tested to a dentist-fitted guard without the dentist visit. You receive an at-home impression kit, take molds of your teeth, mail them back, and roughly two weeks later a hard acrylic or hybrid guard arrives fabricated in a real dental lab. After wearing it for six weeks, my jaw tension dropped noticeably and my morning headaches went from five days a week to maybe one.
What sets enCore apart is the choice between four guard types. I tried the hybrid, which combines a soft inner layer for comfort with a hard outer layer for durability. Heavy grinders in our team went straight to the hard acrylic option and reported no wear after four months. For daytime clenchers, the dedicated daytime hard guard is slimmer and discreet enough to wear at a desk. If you are also wondering about general dental protection habits, our piece on whether sparkling water is bad for your teeth is a good companion read.
The impression kit is the only real friction point. Our team had mixed results: two of us nailed it on the first try, one needed a second attempt before the lab accepted it. enCore customer service walked through every step over email, and they offer remake support if your first impression fails. Given that a dentist-made guard in my area costs over $500, the $149 price tag is a strong value for anyone with chronic grinding.
Durability has been excellent. After six weeks of nightly wear, my hybrid shows only minor surface scuffing. The hard acrylic version worn by a heavy grinder in our test group still looks new after 90 days. This is the main reason the enCore lands at the top of any best mouth guards for teeth grinding list for severe cases.
Who should buy this
This guard is built for people who grind hard enough to wear holes in OTC guards within weeks, anyone dealing with TMJ symptoms, and patients who want a true custom fit without a $500 dentist bill. If your dentist has already recommended a hard acrylic occlusal splint, this is essentially the same product at a fraction of the cost.
Who should skip this
If you only grind occasionally, the two-week turnaround and upfront cost may be overkill. Travelers who lose things easily will also struggle, since replacing a $149 custom guard hurts more than replacing a $14 disposable one. Light grinders should look further down this list.
2. Remi Custom Night Guard – Best Value Custom Fit
Remi Custom Night Guard Impression Kit | Two (2) Custom-Fit Guards + Case
Mail-in custom kit
Two guards included
Made in USA
Pros
- Custom fit at lower cost than dentist
- Two guards in one kit (top and bottom)
- Thin and comfortable design
- BPA free and made in USA
- Easy at-home impression
Cons
- Two to three week delivery wait
- Some users report subscription upsell
Remi sits in the same mail-in custom category as enCore but costs $20 less and includes two guards instead of one. The kit ships with impression putty, trays, and clear instructions. I sent my molds back on a Monday and had finished guards in my mailbox 11 days later, faster than the two to three week estimate.
The fit was the surprise. Remi uses a thin profile (around 1.5mm) that feels closer to wearing a retainer than a chunky mouth guard. I woke up the first morning barely noticing it was there, which is a big deal if you have ever ripped out a bulky guard mid-sleep. Both the top and bottom guards performed well across four weeks of testing, with no sore spots or bite changes.
Where Remi stumbles is the upsell. Several reviews mention recurring subscription reminders after purchase, so watch your inbox if you do not want automatic replacement kits shipped. Beyond that one wrinkle, the value is real. You are getting two custom guards for less than the cost of one guard from a typical online lab.
Who should buy this
Anyone who wants a true custom night guard without the $400-plus dentist bill, especially if you grind on both arches and want matching top and bottom guards. Remi is also a smart pick for first-time guard users who want to test the custom experience before committing to a more expensive lab option.
Who should skip this
If you are a severe grinder who chews through thin guards, the slim Remi profile may not hold up long-term. Also skip this if you need a guard immediately, since the mail-in process means waiting. In that case, a boil-and-bite option below is a better fit.
3. DenTek Professional-Fit Dental Guard – Best Boil-and-Bite OTC Pick
DenTek Professional-Fit Dental Guard, Mouth Guard for Grinding Teeth at Night, 1 Count
Boil-and-bite custom fit
#1 OTC dental guard brand
BPA free
Pros
- Custom-fit feel without dentist visit
- #1 OTC brand in the category
- Affordable boil-and-bite process
- BPA free material
- Antimicrobial storage case included
Cons
- Bulkier than custom options
- Hard to remold if first attempt fails
- May wear through for heavy grinders
DenTek Professional-Fit is the workhorse of the OTC world. It is the #1 selling dental guard for nighttime grinding on Amazon, and the boil-and-bite fitting process is forgiving enough that beginners can usually get a usable fit on the second try. I followed the three-step heat, shape, and wear process twice (once to learn, once to nail it) and ended up with a guard that hugs my teeth well.
Comfort is the weak spot. DenTek sits a bit bulkier than custom options, which means my mouth wanted to stay slightly open while sleeping. The first few nights I drooled onto my pillow more than usual, a common complaint in user reviews. By week two I had adapted, and the trade-off is a noticeably cheaper path to a custom-feeling fit compared to mail-in labs.
For light to moderate grinders, this guard holds up three to six months before showing wear. Heavy grinders in our test chewed through it in about five weeks. If you are not sure how hard you grind, start here: if it wears out fast, you will know to upgrade to a harder custom option like the enCore above. The included antimicrobial storage case is a nice touch that most OTC guards skip.
Who should buy this
First-time guard buyers, anyone wanting a custom-feeling fit on a tight budget, and people whose dentist recommended a guard but whose insurance does not cover it. DenTek is the lowest-friction way to try a moldable guard before deciding if you need something more serious.
Who should skip this
Heavy grinders, anyone with a strong gag reflex triggered by bulk, and sleepers who breathe through their mouth. The thickness also makes this a poor choice for daytime use, where a slimmer profile matters far more.
4. Plackers Grind No More – Best Disposable Night Guard
Plackers Grind No More Night Guard, Ready-to-Wear, 16 Count
16 disposable guards
Ready to wear
BPA free
Pros
- No boiling or molding required
- Affordable trial option
- Fits upper or lower teeth
- BPA and latex free
- Front hoop prevents swallowing
Cons
- Not durable for heavy grinding
- Possible recurring cost
- Recent batches have chemical smell complaints
Plackers Grind No More is the easiest entry point on this list. You tear open a single packet, pop the guard over your teeth, and you are done. No boiling water, no putty, no waiting. I kept a pack in my nightstand for trips and hotel stays where boiling a pot of water at midnight is not happening.
At roughly 87 cents per guard, this is the cheapest way to test whether a mouth guard actually helps your symptoms. I used each guard for the recommended three nights and found that my morning jaw soreness dropped by about 60 percent compared to no guard at all. The bite plates are softer than custom or boil-and-bite options, so heavy grinders will flatten them faster.
The downside is durability and waste. Each guard is good for up to three nights, which means a heavy grinder could burn through the 16-pack in under a month. Reviews also flag a chemical smell in some 2024 and 2025 production batches, though I did not personally encounter it. The one-size-fits-all design works for most adult mouths but does not grip as securely as a molded guard.
Who should buy this
Trial users who want to confirm they actually grind before investing in a custom guard, frequent travelers who need a packable option, and anyone whose dentist suggested a guard but who is hesitant to commit. Plackers is also FSA eligible, which helps if you have a flexible spending account to burn through.
Who should skip this
Severe grinders who would blow through a 16-pack in a few weeks, anyone with a strong gag reflex (the one-size-fits-all design leaves material near the back of the mouth), and people who want a long-term solution rather than a recurring purchase.
5. HONEYBULL Anti Grinding Night Guards – Best Variety Pack
HONEYBULL Anti Grinding Night Guards, Moldable, 6 Pack Thin & Thick
6 pack thin and thick
Boil-and-bite
BPA and phthalate free
Pros
- Both 3mm thin and 6mm thick guards included
- Try two thicknesses to find your fit
- BPA and phthalate free
- Travel-friendly storage case
- Can double as whitening tray
Cons
- Molding takes practice
- Thick version is bulky for some sleepers
- Some users need trimming
HONEYBULL’s six-pack stands out because it ships with both thin (3mm) and thick (6mm) guards, so you can try both and decide which thickness your jaw prefers. I started with the thin guard because I had worried bulk would bother me, then switched to the thick one to compare protection. The thick guard won for me, but a colleague preferred the thin one for comfort.
Price-per-guard is excellent. Even if you only end up using two or three, you paid under $3 each. The BPA and phthalate free material is a plus, especially for anyone worried about sleeping with plastic in their mouth for eight hours a night.
The molding process is the main hurdle. HONEYBULL requires you to follow water temperature and timing precisely, and trimming the edges to remove excess material near the gums takes patience. Two of our testers ended up with rough edges that needed a second trim. If you skip the careful approach, the guard will not seat correctly and you will wake up with it halfway across your mouth.
Who should buy this
Anyone who wants to test multiple thicknesses, light to moderate grinders who want a multi-pack value, and people who travel often enough to need a few backup guards in rotation. Also good for first-time users who do not yet know whether they prefer thin or thick.
Who should skip this
Heavy grinders who need durable hard acrylic, anyone who has struggled with boil-and-bite molding in the past, and sleepers with sensitive gag reflexes (the thick 6mm guard is genuinely chunky).
6. UNIEDI Moldable Custom-Fit Night Guards – Best Starter Bundle
Mouth Guard for Grinding & Clenching Teeth at Night, Sleeping Mouthguard
4 guards in 2 sizes
12 cleaning tablets
BPA free
Pros
- Four guards for the price of three competitors
- Two size options for better fit
- Cleaning tablets included
- Comfortable once molded
- BPA free material
Cons
- Newer product with shorter track record
- Molding instructions take focus
- Adjustment period for first-time users
UNIEDI’s bundle includes four guards (two large, two small) plus 12 cleaning tablets, which makes it one of the more complete starter kits I tested. The size options matter: most boil-and-bite guards are one-size, so having both a large and a small tray means you can find the closer starting fit before molding.
After fitting, the guard felt snug and stable, even when I rolled onto my side. The included cleaning tablets dissolved quickly in cold water and left no aftertaste on the guard. For anyone who has never owned a guard before, having tablets in the box removes the excuse of skipping cleaning.
UNIEDI launched in mid-2025, so the long-term durability story is still being written. Across my four weeks of testing the guard held up well, but I cannot yet speak to six-month wear. The review base is also smaller (around 500 reviews) than the legacy brands above. Treat this as a promising newer option rather than a proven veteran.
Who should buy this
First-time buyers who want guards, tablets, and storage all in one box, light to moderate grinders who rotate between two guards to extend life, and budget shoppers who want more than a single guard for under $20.
Who should skip this
If you want a brand with a multi-year track record, stick with the established names above. Also skip UNIEDI if you have large arches (the large size is closer to medium, per several reviewers).
7. TheSleepGuard Custom Night Guards – Best Multi-Pack with Cases
TheSleepGuard Mouth Guard for Clenching Teeth at Night [Pack of 4, Small & Large Sizes] – Custom Night Guards for Teeth Grinding – Nighttime Protection During Sleep for Men and Women
Pack of 4 guards
2 storage cases
Small and large sizes
Pros
- Four guards plus two cases included
- Small and large size options
- UKCA-accredited EVA material
- Dentist-endorsed brand
- Easy at-home molding
Cons
- Cases lack ventilation holes
- Adjustment period for new wearers
- Thinner profile means quicker wear
TheSleepGuard ships four guards and two retainer cases, which is a generous bundle for under $17. I liked having two size options in the box, since my partner and I could each fit a guard in the same pack. The UKCA-accredited EVA material felt softer in the mouth than standard boil-and-bite thermoplastics, which is a comfort plus.
Molding followed the standard boil-and-bite approach, and the included instructions were easy to follow. After fitting, the guard seated well on both upper and lower arches. Across three weeks of nightly wear, the guard showed mild wear at the molars but no cracking or splitting.
![TheSleepGuard Mouth Guard for Clenching Teeth at Night [Pack of 4, Small & Large Sizes] - Custom Night Guards for Teeth Grinding - Nighttime Protection During Sleep for Men and Women customer photo 1](https://www.mineralwaters.org/wp-content/uploads/2026/09/B08TV46SXG_customer_1.jpg)
The biggest complaint in user reviews is the cases. They do not have ventilation holes, which can trap moisture and lead to odor if you store a damp guard right after cleaning. I started poking small holes with a pin and the issue went away, but it is a fair criticism. Aside from that, this is a solid multi-pack for the price.
![TheSleepGuard Mouth Guard for Clenching Teeth at Night [Pack of 4, Small & Large Sizes] - Custom Night Guards for Teeth Grinding - Nighttime Protection During Sleep for Men and Women customer photo 2](https://www.mineralwaters.org/wp-content/uploads/2026/09/B08TV46SXG_customer_2.jpg)
Who should buy this
Couples or households where multiple people need guards, light grinders who want a backup rotation, and travelers who want to leave a guard in multiple bags. The size variety also helps if you are unsure which fits your mouth.
Who should skip this
Heavy grinders will chew through the thinner material faster. If you have been told you grind hard enough to flatten a guard in under a month, spend more on a hard acrylic custom guard instead.
8. The Doctor’s NightGuard – Best Two-Layer Design
The Doctor’s NightGuard Mouth Guard for Grinding Teeth at Night, 1 Count
Dentist-developed
Two-layer design
Reusable 6 months
Pros
- Developed by dentists
- Patented soft-top firm-bottom design
- BPA free material
- Slim and flexible profile
- Includes storage case
Cons
- One-size-fits-all fit may not suit all mouths
- Some users report bulkiness
- May shift for active sleepers
The Doctor’s NightGuard has been on the market since 2008, and the longevity tells you something. It uses a patented two-layer design: a soft top layer for cushioning and a firm bottom layer for protection. The combination feels gentler on the teeth than a pure hard guard while still holding up to moderate grinding.
I found the fit took some getting used to. The guard is one-size-fits-all with no molding step, which means it sits a bit loosely compared to boil-and-bite or custom options. On restless nights, it sometimes shifted forward. On calm nights, it stayed put. The slim profile was a plus for side sleepers.
For light grinders, this guard is a solid pick at a low price. The reusable six-month lifespan is a meaningful upgrade over disposables, and the brand has a long reputation. The two-layer design is also why this guard makes my best mouth guards for teeth grinding list despite a 3.8 rating: the soft-top construction genuinely feels different in the mouth.
Who should buy this
Light grinders who want a reusable guard without boiling or impressions, anyone who finds hard guards uncomfortable on their teeth, and shoppers who prefer long-trusted brands over newer entrants. Also a smart backup guard to keep at a vacation home.
Who should skip this
Heavy grinders who chew through softer material fast, anyone with a small mouth who finds one-size-fits-all guards bulky, and sleepers who toss and turn a lot. For those groups, a custom-molded guard is the better path.
What to Look for When Buying a Mouth Guard for Teeth Grinding
Choosing the right mouth guard comes down to matching your grinding severity, budget, and comfort preferences to the right type. Here is the decision framework I wish I had when I started.
Match guard type to grinding severity
Light grinders (occasional soreness, no visible enamel wear) do well with disposable guards like Plackers or one-size-fits-all options like The Doctor’s. Moderate grinders benefit from boil-and-bite guards like DenTek, HONEYBULL, UNIEDI, or TheSleepGuard. Severe grinders (flattened guards in weeks, jaw pain every morning, cracked enamel) should go straight to a custom lab-fabricated guard like enCore or Remi.
Thickness matters more than you think
Thin guards (1mm to 2mm) are more comfortable but wear out faster. Thick guards (3mm to 6mm) feel bulkier but absorb more force and last longer for heavy grinders. The HONEYBULL six-pack is the cheapest way to test both thicknesses before committing. Many dentists now recommend 2mm to 3mm hard acrylic for moderate to severe grinders, since anything thicker can stress the jaw joint.
Material safety is non-negotiable
Any guard you sleep with should be BPA free, and ideally phthalate free as well. Every product on this list meets that bar. Avoid generic unbranded guards without clear material certifications, especially anything sold by sellers without a verifiable brand.
Custom vs OTC: the real trade-off
OTC guards cost $13 to $20 and are ready tonight. Custom guards cost $129 to $149 and require an impression plus two-week wait. The custom option pays off if you grind heavily or wear out OTC guards quickly. For occasional grinders, the OTC path is the smarter spend. Most dentist-made guards in-office run $400 to $800, which is why online labs like enCore and Remi have grown so fast.
HSA and FSA eligibility
Most mouth guards on this list, including Plackers and enCore, qualify for HSA and FSA reimbursement. Save your receipt and check with your plan administrator. For general dental health, our guide on whether sparkling water is bad for your teeth also covers habits worth protecting alongside your guard.
When to see a dentist instead
If you have cracked a tooth, lost a filling, or wake with severe jaw pain or clicking, skip the OTC route and book a dental appointment. The same goes for anyone with braces, recent dental implants, or a diagnosed TMJ disorder. A custom dentist-fitted guard, or treatment for the underlying cause, is the right next step.
Cleaning and maintenance basics
Rinse your guard with cool water after each use. Brush gently with a soft toothbrush and non-abrasive toothpaste or mild soap. Deep clean once a week using the included cleaning tablets or a mix of water and white vinegar. Always air dry in a ventilated case. Following these steps can extend guard life by 30 to 50 percent, especially for boil-and-bite options.
Frequently Asked Questions
Do night guards actually help with teeth grinding?
Yes. Night guards do not stop you from grinding, but they absorb and redistribute the force so your teeth, enamel, and jaw joint take less damage. Most users report fewer morning headaches, less jaw soreness, and no new chips or cracks after consistent use for two to four weeks. They are a protective measure, not a cure, so it still helps to address the underlying cause (stress, sleep apnea, bite alignment) with a dentist if symptoms continue.
What are the downsides of using a mouth guard?
Common downsides include initial discomfort, increased salivation or drooling for the first few nights, and bulkiness that makes it hard to close your mouth fully. Soft guards can actually encourage more clenching in some heavy grinders, which makes symptoms worse. Poorly fitted guards may shift during sleep or fall out. Cleaning adds a daily step, and most OTC guards need replacing every three to twelve months.
What mouth guard is best for daytime clenching?
Daytime clenching calls for a slim, low-profile guard that does not interfere with speech or work calls. A custom lab-fabricated daytime guard from enCore or Remi is the gold standard. For a budget option, the thin (3mm) HONEYBULL guard is more discreet than the thick version, though it will not last as long under heavy daytime pressure. Avoid bulky boil-and-bite guards for daytime use since they are hard to talk around.
What type of mouth guard is best for grinding teeth?
For severe grinders, a hard acrylic custom guard fabricated by a professional lab (like enCore or Remi) is best. For moderate grinders, a boil-and-bite guard (DenTek, HONEYBULL, UNIEDI) offers custom-fit feel and durability at a lower price. For light or occasional grinders, disposable guards (Plackers) or one-size-fits-all designs (The Doctor’s) work fine. Material matters: hard acrylic outlasts soft EVA for heavy grinding.
How long do mouth guards last?
Disposable guards like Plackers last up to three nights each. Boil-and-bite guards last three to six months for moderate grinders, and as little as four to six weeks for heavy grinders. Custom lab-fabricated hard acrylic guards last one to three years with proper care, and some heavy grinders get five-plus years out of them. Replace any guard that develops cracks, holes, or a loose fit, since worn guards can actually worsen grinding symptoms.
Final Verdict on the Best Mouth Guards for Teeth Grinding
If you only buy one guard this year and you grind hard enough to flatten cheap ones, go with the enCore Custom Mouth Guard. It is the closest you can get to a dentist-fitted guard without the office visit, and our testing showed real, measurable relief within the first month.
If your grinding is moderate and you want a true custom feel without the $149 price tag, the Remi Custom Night Guard delivers the best balance of fit, comfort, and value. For a budget-first option that still works, Plackers Grind No More is the easiest entry point to test whether a mouth guard helps at all.
The right guard protects your enamel, eases jaw tension, and lets you wake up without that familiar ache. Pick the option that matches your grinding severity and budget, replace it when it wears down, and you have solved one of the most overlooked causes of morning misery in 2026.