Thinking About Whitening Your Teeth? Here's What You Should Know

Teeth whitening is one of the most asked-about topics in dentistry—and for good reason! Who doesn’t want a brighter, whiter smile?

But with so many options out there, it’s easy to feel overwhelmed.
Should you use strips or trays? At home or in-office? And how long will it actually last?

Let’s break it down and answer all your questions—straight from the team at Sun Dental Lethbridge.

How Long Does Teeth Whitening Last?

It depends on the type of treatment you choose.

• Professional whitening (like what we offer in our clinic) can last anywhere from 6 months up to 2 years with proper care.

• At-home or drugstore products tend to give you a boost for a few months, but the results fade more quickly.

Whitening is an investment—so if you’re looking for longer-lasting, more noticeable results, professional care is the way to go.

Professional vs. Over-the-Counter: What’s the Difference?

It all comes down to ingredients and strength.

• Professional whitening treatments use higher-concentration bleaching agents that are safe and effective when administered by your dentist.

• At-home products (like strips or whitening toothpaste) contain lower-strength ingredients. They work—but usually require more time and consistent use for visible results.

We also custom-fit our trays to your teeth, which helps ensure even whitening and fewer issues with gum sensitivity.

Will Whitening Cause Sensitivity?

Short answer: It might—but it’s temporary.

Some people experience sensitivity for a day or two after whitening. It’s completely normal and should go away quickly.

If you're whitening at home, be cautious about how the strips or trays sit on your gums. If they cause irritation or discomfort, it’s time to take a break—or better yet, chat with your dentist about safer options.

How to Make Your Whitening Last Longer

Want your new white smile to last as long as possible? Here are a few tips:

🦷 Skip the stain-makers for 48–72 hours post-whitening. That means coffee, red wine, tomato sauces, and anything dark or acidic.
🦷 No smoking or tobacco—these undo whitening fast.
🦷 Use a straw for your go-to beverages (even iced coffee!) to minimize surface contact.
🦷 Brush regularly with a gentle whitening toothpaste to keep stains at bay.
🦷 Keep up with dental cleanings—we’ll help you maintain your results!

Ready to Brighten Your Smile?

Whether you're prepping for a big event or just want a confidence boost, professional teeth whitening is a safe, simple way to glow up your grin.

Next time you're in for a cleaning or check-up, ask us about your whitening options—we'll walk you through the best choice for your smile.

✨ Book your appointment at Sun Dental Lethbridge and let's get glowing!