Like many people, you may grasp that tooth stains age your face. It makes sense in hindsight – a dirty, yellow smile can seem haggard and worn out. That said, did you know that teeth-grinding makes you look older too? Indeed, a short, flat tooth can appear as aged as a yellow one. Still, there is hope: your local dentist can help you keep this habit in check. To that end, here’s a summary of how grinding teeth ages you and ways to prevent it.

Millions of Americans grind their teeth, especially at night. So-called “sleep bruxism” is estimated to affect around 13% of adults and a much higher proportion of children. Grinding your teeth at night can seriously affect your oral health, often in ways you may not realize.

If you have sleep bruxism, your dentist will likely recommend that you get a night guard to protect your teeth. You may be tempted to get one at your local pharmacy, or just not get a nightguard at all. Here’s why having your dentist craft you a nightguard is worth it.