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Sentinel Mouthguards Discount Codes & Verified Offers for October 2026

Browse 30 manually checked Sentinel Mouthguards Coupon Codes for October 2026, including Discount Codes, current discounts and exclusive deals. Expired offers are removed regularly.

Sentinel Mouthguards offers 0 coupon codes and 30 deals as of October 2026. Today's top offer: Impression Kits Available From $25. Codes are verified and updated daily.

From $25
Impression Kits Available From $25

Obtain your custom impression kit for prices beginning at $25. This kit is necessary for creating your custom guard.

Bundle
Impression Kit Plus Night Guard Bundle Savings

Combine an impression kit with a night guard purchase for a reduced price. This offers overall value.

Up to
20%
OFF
20% Off Hard Dental Night Guards

Receive up to 20% off select night guards, including hard dental night guards. Protect your teeth with quality mouthguards.

Bundle
Bundle an Upper and Lower Night Guard for Savings

Buy both an upper and lower night guard together and receive a discount on the pair. This option provides protection for both arches.

10%
OFF
Returning Customer Appreciation: 10% Off

Loyal customers receive 10% off their next purchase as a thank you. This offer is for repeat buyers.

50%
OFF
Buy 1 Get 1 50% Off Retainer Cleaner

Purchase one retainer cleaner and get a second one at half price. This offer helps maintain oral hygiene products.

17%
OFF
Professional Teeth Whitening Gel at 17% Off

Enjoy 17% off Professional Teeth Whitening Gel. This pairs well with custom whitening trays.

10%
OFF
Student Discount: 10% Off All Night Guards

Students can receive 10% off any custom night guard purchase. Valid student ID or verification is necessary.

$15
Only
Replacement Impression Putty for $15

Obtain Replacement Impression Putty for a flat $15. This is useful if your first impression isn't successful.

$30
Only
Professional Teeth Whitening Gel Starting at $30

Get professional teeth whitening gel for an initial price of $30. This product is designed for effective at-home whitening.

Under $50
Under $50: Essential Mouthguard Accessories

Find a selection of mouthguard accessories, including cleaning tablets and cases, for under $50. These items aid in product maintenance.

10%
OFF
10% Discount for All Military Personnel

Active military members and veterans qualify for a 10% discount on all orders. Verification may be required at checkout.

20%
OFF
Afterpay Available for Night Guard Purchases

Utilize Afterpay to split your night guard purchase into four interest-free payments. This provides flexible payment options.

Up to
20%
OFF
Select Night Guards Up To 20% Off

Protect your teeth with up to 20% off select Sentinel Mouthguards, including Hard Dental Night Guards.

15%
OFF
Get 15% Off Teeth Whitening Trays

Save on custom-fit teeth whitening trays. These are made to your unique dental impressions.

Bundle
Mouthguard Case & Cleaning Tablets Bundle Deal

Purchase a mouthguard case together with cleaning tablets and save on the combined price. This bundle supports product care.

10%
OFF
First Order 10% Off for Newsletter Signups

Sign up for the newsletter and receive a 10% discount on your initial purchase. This applies to your first order only.

15%
OFF
Healthcare Worker 15% Discount

All healthcare professionals are eligible for a 15% discount on their Sentinel Mouthguards purchase. Provide verification for this offer.

Free Shipping
Free Shipping on Orders Over $75 Site-Wide

All orders exceeding $75 qualify for complimentary standard shipping. No minimum purchase for some items.

$10
Only
Custom Athletic Mouthguards for $10 Off

Reduce the cost of a Custom Athletic Mouthguard by $10. Protect your teeth during sports activities.

15%
OFF
Buy a Night Guard, Get 15% Off a Second Item

Purchase any custom night guard and receive 15% off an additional item. This is a bundle offer.

From $129
Hard Dental Night Guards From $129

Find various Hard Dental Night Guards starting at this price point. Select from different thicknesses and styles.

Under $150
2mm Night Guards Under $150

Browse a selection of 2mm thick night guards priced below $150. Options include upper and lower guards.

20%
OFF
Bundle Cleaning Tablets & Case for 20% Off

Purchase Cleaning Tablets and a Mouthguard Case together and save 20%. Keep your guard clean and safe.

10%
OFF
December Savings: 10% Off All Night Guards

Throughout December, get a 10% discount on all custom dental night guards. This is a seasonal promotion.

45%
OFF
Klarna Available on All Sentinel Mouthguards

Pay for your Sentinel Mouthguards order using Klarna for flexible payment solutions. This allows for easier budgeting.

12%
OFF
Dual Laminated Night Guards: 12% Off Now

Receive 12% off Dual Laminated Night Guards. These guards offer combined comfort and durability.

35%
OFF
Seasonal Savings on Dental Night Guards

Take advantage of special pricing on dental night guards during seasonal sales. This offer is available for a limited time.

10%
OFF
10% Off for Returning Customers

Previous buyers can enjoy 10% off their next order. This is a thank you for your continued business.

From $125
Hard Dental Night Guards From $125

Discover custom-fit hard dental night guards starting at $125. These guards offer robust protection for teeth grinding.

Customer Reviews

4.7
Average Rating
12
Total Reviews
June Silva
★★★★★
2 months ago

Love my new mouthguard!

Oh my goodness, I am so happy with my new Custom Athletic Mouthguard! It fits absolutely perfectly and is so comfortable, way better than anything I've ever bought in a store. The color I picked looks awesome too. I used it for my last game, and it felt like it wasn't even there! I will definitely be getting another one when this one eventually wears out. You guys are amazing!

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Tara Y.
★★★★☆
2 months ago

Good quality, fast shipping

Ordered a Custom Athletic Mouthguard. The impression kit arrived quickly. Sent it back, and the mouthguard came faster than I thought it would. Fits perfectly. Happy with the purchase.

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Troy N.
★★★★★
2 months ago

Absolutely love my new guard!

I just received my 1mm Thin Night Guard and it's fantastic! I barely even notice I'm wearing it. The impression kit was super easy, and the instructions were clear. Shipping was faster than I expected, and the fit is just perfect. I sleep so much better now without grinding. This store is my go-to for sure, and I've already told my sister about them!

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Tara Hughes
★★★★★
2 months ago

Reliable as always

This is my third order from Sentinel Mouthguards, this time for an Extreme Durability Night Guard. My first one lasted ages, and the second was a Custom Athletic Mouthguard for my son which he still uses. The process is always consistent; the impression kit works perfectly, and the finished product always fits. It's why I keep coming back. They're dependable and the quality is consistently high, which is what you want for something custom-made like this.

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Anna V.
★★★★★
2 months ago

Detailed review of my experience

I ordered an Extreme Durability Night Guard. The ordering process online was very smooth; their website was easy to navigate. The impression kit arrived within a few days, and the instructions were clear, with a video tutorial link which was helpful. After sending back my impressions, the custom guard took about two and a half weeks to arrive, which was in line with their estimated delivery times. The fit is excellent, very snug but comfortable. Cleaning is simple with the tablets I also bought. I had a quick question about cleaning when it arrived, and customer support responded to my email within a few hours. Overall, a professional service and a high-quality product that feels very robust.

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Faith
★★★★☆
2 months ago

Solid product, slight delay

Ordered an Upper Night Guard, the Dual Laminated one. The impression kit was straightforward to use, and I sent it back without any issues. The guard itself is comfortable and seems durable, much better than the over-the-counter ones. It took a bit longer to arrive than I initially thought, maybe a week past the estimate, but customer service was helpful when I inquired. Overall, I'm satisfied with the product and the fit, just wish shipping was a touch faster.

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Carly
★★★★★
2 months ago

Night guard is really good

I got the Hard Dental Night Guard because I grind my teeth a lot. It was pretty easy to do the impression kit at home, just followed the instructions. The guard itself fits nicely, way better than those boil-and-bite ones. Sleeping much better now, didn't even realize how much the old one was bothering me. Totally worth it.

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Steve Bennett
★★★★★
3 months ago

My third order, still great

This was my third time ordering from Sentinel Mouthguards. I needed a new 1mm Thin Night Guard because my old one (from them too) finally wore out after a few years. Just like the last two times, the impression kit was straightforward, and the new guard fits just right. I keep coming back because their products are consistently good and last a long time. No complaints at all, they're reliable.

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Mark F.
★★★★☆
3 months ago

Got my night guard

So I finally got around to ordering one of these night guards. I went with the Soft Dental Night Guard, seemed like a good starting point. The impression kit wasn't hard to do, just follow the directions. It came back and fit pretty well, feels good in my mouth. Way better than clenching my teeth all night. I'm happy with it.

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Raj Marsh
★★★★☆
3 months ago

Good value for a night guard

I was looking for a good deal on a night guard since my dentist quoted me a fortune. I ended up getting the Dual Laminated Night Guard during a seasonal sale. The price was really fair, especially compared to what dentists charge. The impression process was simple enough, and the final product feels durable. I feel like I got a really good value for my money here.

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Sentinel Mouthguards Community Discussion

Share tips, ask questions & help fellow shoppers save more

T
Todd
2 months ago

How long does it actually take to get one of these guards? I grind pretty bad and need something soon.

J Josh Patel 2 months ago
From when I sent my impression back, it was about 2-3 weeks to get the finished guard. The impression kit itself ships pretty fast.
6
R Rosa Romero 2 months ago
Mine was a little longer, maybe closer to a month total. It depends on how fast you do the impression kit part and mail it back, I think.
6
8 Responses (2)
T
Tom
2 months ago

Anyone know if these are legit for FSA/HSA? My dentist charges a fortune.

C Carly 2 months ago
Yep, I paid for mine with my FSA card last year. It counts as a medical expense.
4
N Noor C. 2 months ago
Pretty sure it's eligible. Check with your plan provider just to be safe, but it's generally good to go.
5
7 Responses (2)
C
Chris S.
3 months ago

Can you use like a military discount AND a seasonal sale code on the same order? Trying to save as much as possible.

J June 2 months ago
Nah, they only let you use one code at a time. Had to choose between my healthcare discount and a holiday one last year.
5
D Dana 2 months ago
Pretty sure it's just one coupon per order, most places are like that.
6
7 Responses (2)
E
Elena
2 months ago

How do these compare to something like ProTeethGuard or Sporting Smiles? Are they worth the extra cost?

M Marcus G. 2 months ago
I had Sporting Smiles before and Sentinel feels more custom, like it fits better. Material also seems sturdier. Worth the upgrade for me.
4
N Noor 2 months ago
Heard good things about Sentinel vs Remi, people say the fit is better and lasts longer. Haven't tried the others though.
1
6 Responses (2)
C
Chris G.
3 months ago

Hey, I'm thinking about getting a night guard from Sentinel. Do they do any first-time buyer deals, or should I wait for a sale?

C Carly 2 months ago
Yeah, they usually have a discount code for first orders. I got 15% off when I signed up for their email list.
5
E Elena V. 2 months ago
Check their site, sometimes it's like a pop-up. I think it's usually 10-20% off for new customers.
6
6 Responses (2)

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