Sentinelmouthguards Review 2026

Sentinel Mouthguards is a US-based custom dental lab offering a range of professionally crafted oral protection products directly to consumers. With a claimed 30+ years of combined dental industry experience, the company specializes in custom-fit night guards, day guards, sports mouth guards, tongue and cheek biting guards, clear dental retainers, and teeth whitening trays — all manufactured in the USA.

The ordering process centers on Sentinel's at-home dental impression kit, which customers use to create molds of their teeth. These impressions are mailed to the lab, where dental experts craft a personalized guard or retainer. This approach aims to replicate the quality of dentist-office custom appliances at a fraction of the cost, eliminating the middleman markup. The company markets its products as BPA-free, silicone-free, gluten-free, latex-free, MMA-free, and phthalate-free, emphasizing material safety.

Sentinel's product lineup includes:

• Custom Night Guards — for nighttime teeth grinding (bruxism) and clenching
• No-Show Day Guard — a virtually invisible guard for daytime use
• Sports Guards — custom-fitted for athletic protection
• Tongue & Cheek Biting Guards — for accidental biting relief
• Clear Dental Retainers — post-braces or aligner maintenance
• Teeth Whitening Trays — custom-fitted for at-home whitening
• Ultrasonic Cleaner + UV Light Sterilizer — accessory for guard hygiene

The store offers free shipping to the lower 48 US states and promotes a 100% money-back guarantee, which provides some reassurance for first-time buyers. The site highlights over 1,038 five-star reviews on its own platform, though its independent Trustpilot rating is 3 out of 5 based on 19 reviews, suggesting a mixed external reputation that prospective buyers should weigh carefully.

Sentinel Mouthguards is best suited for budget-conscious consumers who need a custom dental appliance without the high cost of a dental office visit. The company's FDA-registered status and USA manufacturing are notable trust signals, but shoppers should review the money-back guarantee terms carefully given that the detailed refund and shipping policy pages were inaccessible at time of review (returning 404 errors). Customer support is available via the help center and contact page on the website.