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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.
Mouthguards for Teeth Grinding: Options Reviewed for 2026
Sleep Foundation has published an overview of mouthguards intended for people who grind their teeth. The guide aims to help readers identify which type of mouthguard may suit their individual needs. It covers a range of available options for the year 2026.
Mindfulness in the Present Moment as a Tool for Business Growth
An article from Entrepreneur explores how developing the habit of staying focused on the present moment can benefit both personal wellbeing and professional performance. The piece suggests that this mindset shift has practical implications for how business owners and employees approach their work.
Business Lessons From Comedian Bill Burr for Small Owners
An overview is presented of four practical lessons that small business owners can draw from the career and mindset of comedian Bill Burr. The insights focus on entrepreneurial thinking and building a sustainable independent business. The content is aimed at owners looking for unconventional but grounded perspectives on running a small enterprise.
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.
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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.
€250
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Your review = real impact + chance to win €250
Guarantee: every review triggers one of these 5 real donations:
- 1 Upload a photo Of your order or the product
- 2 Give stars 1 to 5 per aspect
- 3 Trigger a donation Plus a chance at € 250 cash per month
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Share your photo review about Sentinel Mouthguards
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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