The Sentinel Promise: Perfect fit or we remake it free.
At Sentinel Mouthguards, we’ve reviewed more than 5,000 dental impressions — and the same mistakes keep showing up. From shallow molars to putty timing errors, even small slip-ups can lead to a poorly fitting guard. In this guide, we break down the most common impression mistakes (with real examples) and show you how to avoid them for a perfect fit every time.
A custom night guard should feel secure enough to stay in place without being painfully tight or difficult to remove. Learn what proper retention feels like, the warning signs of a poor fit and when a guard may need adjustment.
Think your custom night guard is made in the USA? Think again. Many online companies ship impression kits from U.S. addresses—but once they receive your mold, they scan it and outsource production to overseas manufacturers. The result? A night guard made in China, not America. In this article, we uncover how these misleading practices work and why choosing a truly U.S.-made night guard from Sentinel Mouthguards is the safer, smarter choice.
The best night guard cleaning routine is simpler than you may think. Learn how to clean your guard every day, when deeper cleaning may help, what research says about soap and oral-appliance cleaners, and which popular methods deserve more caution.
Custom night guards may qualify for HSA or FSA spending when used for an eligible medical or dental purpose. Learn how HSA/FSA rules work, what documentation may be needed and how Sentinel’s TrueMed option can simplify payment.
Can you wear a night guard with a permanent retainer? In most cases, yes. Learn when a bonded retainer can be safely accommodated, how impressions and digital scans work, and when to have the retainer checked first.
A custom night guard from a dentist usually costs several hundred dollars, but prices vary widely. See current U.S. cost ranges, what may be included in the fee and how dentist-provided guards compare with lab-direct custom options.
