The Sentinel Promise: Perfect fit or we remake it free.
Learn how a custom dental night guard works to protect your teeth from grinding and clenching. Discover how night guards absorb pressure, prevent enamel wear, reduce jaw strain, and protect crowns, veneers, and fillings while you sleep.
Misplaced your retainers—or had the dog chew them up? Don’t worry. Here’s exactly what to do when you lose your retainer, how fast teeth can move, and the smartest way to get a quick, affordable replacement.
Retainers don’t last forever — they can crack, loosen, get chewed up by pets, or simply wear out over time. If you’ve lost or damaged yours, you’re not alone. Replacement retainers are a normal (and essential) part of post-orthodontic care. In this guide, we’ll cover when and why retainers need to be replaced, the signs it’s time for a new one, and how Sentinel makes reordering fast, affordable, and hassle-free with custom retainers made right here in the U.S.