Your night guard works hard while you sleep—but how do you know when it's time for a new one?
Clear night guards are built to protect your teeth from grinding, clenching, and jaw tension night after night. But like anything you wear regularly, they have a shelf life. Knowing when it’s time to replace yours can make a big difference in how effective (and hygienic) it remains.
If you’ve been using a night guard for a while—or you’re thinking about getting one—here are the telltale signs it’s time to upgrade.
Over time, the pressure from grinding can wear down even the toughest materials. If your clear night guard:
Has deep bite marks or cracks
Feels thinner in certain areas
No longer offers full coverage
…it’s likely time to replace it. Worn-down guards don’t absorb pressure properly and can lead to further dental damage.
Night guards need daily rinsing and occasional deep cleaning—but if yours still smells off even after cleaning, bacteria might have seeped into micro-cracks or porous spots. That’s not something you want in your mouth every night.
Pro tip: Store your night guard dry and in a ventilated case to prevent odor buildup.
Your bite can shift over time, especially if you've had dental work, orthodontics, or even just aging jaw changes. If your guard feels:
Loose or slides during the night
Causes discomfort or pressure
Doesn’t hug your teeth like it used to
…it may no longer be protecting you properly. A custom-fit clear guard like the one from NewSmile can adapt better to your bite and offer a more secure fit than over-the-counter options.
Even with great care, most clear night guards should be replaced every 1 to 2 years depending on your level of grinding. Some light grinders can stretch that to 3 years, but for many, regular replacement ensures comfort and effectiveness.
If you can't remember when you last replaced yours—it’s probably time.
Replacing your night guard doesn’t have to mean another dentist visit. NewSmile offers a convenient way to order a new custom-fit guard online. You simply take your impressions at home and receive a dentist-grade guard shipped straight to your door.
👉 Order your replacement clear night guard here.
Your night guard is a small investment with big returns—but only when it’s in great shape. If it’s worn out, smelly, or just not fitting right, replacing it is one of the easiest things you can do for your long-term dental health.
Your future self (and your smile) will thank you.
