14 Aug How Does Teeth Whitening Work?
Have you ever been browsing through photos and noticed how you’ve aged? Your hairstyle changed, your wardrobe changed, and somewhere along the way, your smile got a little duller, too. This type of change happens so slowly that you’ll probably never notice it in real time. But if you look in the mirror one day and wonder just how your teeth got so yellow, don’t worry. A professional whitening treatment can help reverse the damage.
The Science Behind Teeth Whitening
Most professional-strength whitening products use hydrogen peroxide. Some use carbamide peroxide, a related compound that breaks down into hydrogen peroxide once it’s applied to your teeth.
When the peroxide penetrates your enamel, it reacts with the organic pigments inside your tooth structure and bleaches them colorless. It doesn’t strip away the enamel or change your tooth’s mineral makeup. It just targets the discolored molecules and neutralizes them.
However, if you want noticeable results, you’re going to need a very strong bleaching agent. That’s part of why a dentist-supervised plan matters so much. You’ll get far better results with a prescription kit than you can with any over-the-counter solutions.
Professional Teeth Whitening vs. Store-Bought Kits
Drugstore strips and whitening pens use a much lower concentration of peroxide than what your dentist can offer. That’s why they take weeks or months of consistent use to show any real improvement.
With professional teeth whitening, you have more options. If you’ve got an event coming up, like a wedding, a reunion, or a trip, timing matters. If you’re short on time, you can get an in-office whitening treatment and walk out with a brighter smile the same day.
Or, if your event is still a few weeks away, you can try an at-home whitening kit. We’ll fit you with custom trays built for the exact shape of your mouth and a professional-strength whitening gel. At-home kits are strong enough to work in weeks instead of months, and they give you more consistent results, because of the custom fit.
Will Teeth Whitening Work for Anyone?
Teeth naturally look start to darker with age because the enamel thins, letting the yellowish dentin underneath show through. The good news is that whitening treatments are still safe and effective for older adults and seniors. It just usually means going with a gentler treatment, like a take-home tray instead of a high-intensity in-office session.
But remember, whitening treatments only work on natural tooth enamel. They have zero effect on porcelain veneers, fillings, or crowns. If you have a lot of dental restorations, especially in the front teeth, your best move is usually to whiten your teeth first and then get new restorations that match the brighter shade afterward.
What’s Causing the Stains in the First Place?
Some tooth discoloration is intrinsic, meaning it happens underneath the enamel and won’t respond to surface-level treatments. But most tooth discoloration is from surface stains caused by the things you eat, drink, or inhale.
The ten most common culprits behind stained teeth include:
- Coffee
- Black tea
- Red wine
- Soda and artificially-colored soft drinks
- Dark-colored berries (including cherries)
- Tomato-based sauces
- Citrus fruits and juices
- Nicotine use (smoking or vaping)
- Certain medications (including tetracycline antibiotics)
- Plaque and tartar buildup
How to Make Your Whitening Results Last
A professional whitening treatment isn’t permanent, but it doesn’t need constant touch-ups either. Most people see results that last for a year or two. However, there are ways to make your whitening results last longer.
Brushing and flossing faithfully twice a day keeps new stains from setting into your enamel. Rinsing your mouth with water after drinks or meals limits how long any dark pigments can stay on your teeth. And avoiding cigarettes and vapes will also protect your results, since nicotine stains teeth very quickly.
Where to Get Your Teeth Whitened in Sun Lakes
If you want a brighter smile, getting your teeth cleaned is a great place to start! Schedule an appointment for a cleaning and while you’re here, ask us about our professional whitening treatments. We’ll discuss your options and come up with a plan that gives you a picture-perfect smile.
Contact Saba & Chiappetti Dental Associates in Sun Lakes to schedule an appointment today.
Photo by Jason Grant on Unsplash used with permission under the Creative Commons license for commercial use 8/10/26.