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Sentinel Mouthguards is a US-based direct-to-consumer dental lab that sells custom-fit night guards, day guards, retainers, and related oral protection products. Every guard is hand-finished by dental technicians and shipped directly to the customer, bypassing the traditional dental office markup.
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About Sentinel Mouthguards
Made in
USA
Shipping
Free on all orders
Savings vs. dental office
Up to 70%
Guarantee
100-night outcome guarantee
Craftsmanship warranty
1 year (6 months on Comfort Guard)
Fit attempts
Up to 3 remakes or adjustments included
Return fee
$23 covers shipping and materials
Customers served
40,000+
Sentinel Mouthguards positions itself in the affordable-premium segment: it targets adults who need professionally made dental guards but want to avoid the high costs of going through a dentist. Founded by a dental hygienist who observed significant markups in clinical practice, the company operates its own US-based lab where technicians with over 30 years of combined experience hand-trim, shape, and polish every guard. The approach is direct-to-consumer, with medical-grade, BPA-free materials and a model that stores customer impressions permanently to simplify future reorders. Compared to dental office prices of $500 to $900, Sentinel advertises savings of up to 70%.
Active promotions
Ready to use with your order at Sentinel Mouthguards.
Free shipping on all orders, regardless of order value.
Example promotion
This is an example of a promotion that could suit this business. It is not a guaranteed active offer or a working discount code. Check the website for current deals.
To the shop
One complimentary redo impression kit included if the first fit attempt is not satisfactory, at no additional charge.
Example promotion
This is an example of a promotion that could suit this business. It is not a guaranteed active offer or a working discount code. Check the website for current deals.
To the shop
Sentinel Mouthguards in the news
Recent updates and background about Sentinel Mouthguards, summarised in our own words.
Find the right guard with the Sentinel fit quiz
Sentinel offers a short online quiz that asks a few questions about grinding habits and jaw pain, then recommends the most suitable guard from their range. The quiz takes roughly two minutes to complete.
How Sentinel's Tru-fit process works
A dedicated page on the Sentinel website walks through every step of the manufacturing process, from dental impression to the hand-finishing stage that sets their guards apart from machine-cut alternatives.
Using a digital scan file for a replacement retainer
Sentinel explains how customers who already have an STL or PLY dental scan file from their orthodontist can use it to order a replacement retainer, skipping the impression kit step and saving $20 in the process.
Summaries by Image Review based on publicly available sources and our own editing. External links may contain affiliate links.
What others ask about Sentinel Mouthguards
Answers to the most common questions, based on search behaviour and our own research.
Is Sentinel Mouthguards a reliable place to buy a night guard?
Sentinel Mouthguards is a US-based dental lab founded by a dental hygienist and staffed by technicians with over 30 years of experience. The company reports more than 40,000 customers served and backs every guard with a 100-night guarantee and a one-year craftsmanship warranty.
What happens if my guard does not fit properly?
Sentinel offers up to three attempts to get the fit right, including adjustments, remakes, and one complimentary redo impression kit. If the fit is still not satisfactory after three attempts within the 100-night window, a refund is issued minus a $23 fee for shipping and impression kit costs.
How long does it take to receive a Sentinel night guard?
The source materials do not specify an exact production or delivery timeframe. Customers who already have a digital scan can skip the impression kit step, which may reduce overall wait time.
Do I need to visit a dentist to order from Sentinel Mouthguards?
No dentist appointment is required. Customers complete an at-home impression using a kit sent by Sentinel, or they can email an existing digital scan file to skip that step entirely. The guard is then hand-finished in the US lab and shipped free to the customer's door.
Your turn
Do you have experience with Sentinel Mouthguards?
Help other consumers by sharing your experience, with a photo of what you actually received. It takes two minutes and you automatically join the monthly draw.
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Guarantee: every review triggers one of these 5 real donations:
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- 3 Trigger a donation Plus a chance at € 250 cash per month
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A photo says more than a thousand words. Help other consumers with an honest experience and join the monthly draw for € 250 cash.
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