Cosmetic Dentistry |4 min read

KöR vs. Zoom Whitening: Which Is Best?

Are your teeth looking a little dull or downright discolored?

Teeth whitening is the solution!

And if you’re reading this:

You already know store-bought tooth whiteners don’t work that well.

Plus, they take forever and cause uncomfortable side effects.

This is why you want to know:

What’s the best way to whiten your teeth?

Today, we’re going to compare two popular professional teeth whitening brands:

Before we dive in:

Let’s discuss the pros of having white teeth.

3 before-and-after teeth whitening cases with "How Do You Get Results Like These?"

10 reasons to whiten your teeth

1. Boost your self-esteem

Feel more confident when smiling, in social situations, etc.

2. Look younger

With age, teeth dull, stains accumulate, and medications can cause discoloration.

But having white teeth will help you look youthful.

3. Look healthier

White teeth are a sign of good oral health and hygiene.

4. Look more attractive

White teeth are a beauty standard in today’s society.

5. Make good first impressions

Smiles are often the first thing people notice about someone.

6. Reduce the look of wrinkles

Draw unwanted attention away from wrinkles, acne scars, frown lines, etc.

7. Affordable

Teeth whitening is a cost-effective way to improve your smile. It’s a lot cheaper than alternatives like veneers.

8. Improve oral hygiene

To keep your white results long term, you’ll need to maintain excellent oral hygiene.

That includes flossing daily, brushing twice a day, and visiting your dentist for routine cleanings and exams.

9. Quick

Professional teeth whitening is faster than over-the-counter tooth whiteners, veneers, and orthodontics.

10. Increase opportunities

You’ll likely smile more when you feel confident about your teeth. This can lead to career advancements, love interests, friendships, and more.

Now, what’s the best professional teeth whitening brand? Let’s compare!

KöR Whitening

If you haven’t found success with other teeth whiteners, KöR Whitening may be for you.

KöR is recommended if you:

  • Need to remove deep, stubborn stains: KöR is the only tooth whitener that removes tetracycline (an antibiotic) staining.
  • Have extremely sensitive teeth: KöR has desensitizing agents in the formula that plug the pores of your teeth to prevent sensitivity.
  • Want dramatic results: You can whiten your teeth up to 16 shades or more.

How does KöR work?

KöR has in-office and at-home whitening options.

The in-office treatment typically takes between 60 and 90 minutes.

The at-home trays vary in length of use depending on your needs. But one perk is the KöR-Seal Trays offer 6 hours of active whitening for faster, more effective results. Whereas most other trays only produce 25-35 minutes of whitening per session.

Philips Zoom Whitening

Zoom is recommended if you:

  • Want a sustainable option: Zoom offers a full range of options based on your current needs.
  • Have mild to moderate staining: Zoom can whiten teeth up to eight shades. The Zoom light will penetrate the tooth surface and break up stains and discoloration.
  • Have sensitive teeth: This formula was designed to reduce sensitivity.

How does Zoom Whitening work?

You should receive a routine cleaning before your Zoom treatment for the best results.

Before starting, your dentist will look at your smile and help you picture what it’ll look like after the whitening treatments.

To begin, there’s a short preparation to cover the lips and gums, leaving only the teeth exposed.

Next, your dentist or hygienist will apply the Zoom whitening gel, which works with the Zoom light.

The gel will stay on for 15 minutes while the light is activated. During this time, you can relax, listen to music, or watch TV if your dentist gives you the option.

Most patients receive three 15-minute Zoom sessions for a total treatment time of 45 minutes. But expect to be in the chair for 90 to 120 minutes. This depends on your current smile’s shade.

So, is KöR or Zoom better?

The answer really depends on your smile.

That’s why it’s best to consult with a dentist who offers both options, like our Cedar Rapids dentist.

Dr. Deb Cassill is a pro when it comes to improving smiles. That’s why she offers both KöR and Zoom because one may be better than the other, depending on your smile.

The last thing you want is to waste money on an ineffective or subpar tooth whitening treatment.

Want her professional recommendation?

Schedule a Teeth Whitening Appointment

Or you can:

Dental Arts Dr. Deb Cassill is conveniently located in Cedar Rapids, IA. We happily welcome patients from the neighboring communities, including Marion, Hiawatha, Robins, Springville, Anamosa, Central City, and Center Point.


Editor’s note: This post was originally published in March 2018 and has been completely revamped for comprehensiveness and timeliness.

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