When it comes to whitening your teeth, not all methods are created equal.
At Gregorin Dental, we prescribe tray whitening with carbamide peroxide because it’s effective, safe, and designed to protect your teeth for the long run. Here’s why it works so well, and why it’s different from other whitening options.
Gentle but Long-Lasting Results
Most over-the-counter whitening products use hydrogen peroxide, which only stays active for about 30–60 minutes. Tray whitening with carbamide peroxide works for 6-10 hours, which is why we recommend using it overnight. That longer activity means:
- Fewer treatments are needed to achieve noticeable results.
- Whitening happens gradually, in a way that looks natural.
Protects Your Teeth While Whitening

One of the biggest benefits of carbamide peroxide is that it raises the pH in your mouth. Why does that matter? Tooth decay begins when the pH drops below a certain level. Carbamide peroxide actually keeps your mouth’s environment more neutral, which means:
- No new cavities can form while you’re wearing the trays.
- In some cases, carbamide peroxide can even help patients who struggle with cavities when fluoride hasn’t been enough.
Hydrogen peroxide, by contrast, has a low pH and doesn’t offer this protective benefit.
Why Haven’t I Heard About This?
Tray whitening with carbamide peroxide has been around for decades, and it’s backed by extensive dental research. If this is as great as we’re saying, why isn’t it more widely talked about?

- Over-the-counter whitening brands dominate the conversation. These products rely on quick-fix marketing, even if the results don’t last as long.
- Dentist-supervised options fly under the radar. Unlike big-box whitening strips or trendy whitening pens, carbamide peroxide requires a custom tray and professional oversight, which means you’re less likely to see it in TV commercials or Instagram ads.
Ready to Brighten Your Smile?
If you’ve been considering whitening, tray bleaching with carbamide peroxide is one of the safest and most effective options available today. Call Gregorin Dental to schedule a consultation and find out how this gentle approach can bring out your best smile.