How to Get Rid of Yellow Teeth

SmileDirectClub Replacement Retainers: What Former Customers Can Do Now

Former SmileDirectClub customer needing a replacement retainer? Learn your options after the company’s closure, including using an existing STL or PLY dental scan or a new impression.

Different Types of Teeth Stains

Retainer Doesn't Fit Anymore? What to Do Next

Retainer no longer fitting the way it used to? Learn why retainers become tight, loose or uneven, what not to do at home, and when replacement or orthodontic evaluation may be appropriate.

What Are Night Guards Made Of? EVA, Copolyester, Acrylic & More

Night guards can look nearly identical while being made from very different materials. Learn how EVA, copolyester, acrylic/PMMA and 3D-printing resins differ—and why “soft,” “hard” and “custom” don’t tell you the whole story.

Are Mouth Guards Effective for Teeth Grinding? What They Really Do

Mouth guards can help protect teeth from the wear, pressure and damage caused by grinding, but they do not always stop bruxism itself. Learn how they work, when they may help and how to choose the right custom night guard.

What Causes Teeth Grinding? Bruxism Causes & Risk Factors

Teeth grinding rarely has one simple cause. Learn how stress, genetics, sleep, medications, caffeine, alcohol and other factors may contribute to awake and sleep bruxism.

Black Friday Alert: Shield Your Smile and Save Big at Sentinel Mouthguards!

Am I a Light or Heavy Teeth Grinder? How to Judge Bruxism Severity

There is no universal test that neatly labels someone a “light” or “heavy” teeth grinder. Learn which clues can suggest greater impact, why tooth wear and pain can be misleading, and how to choose appropriate dental protection.