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Dr Hanna Kinsella, cosmetic dentist and founder of Icy Bear Dental, explains: "Hydrogen peroxide is a weak acid with strong oxidising properties, meaning it steals the electrons that hold the staining molecules together, causing them to fall apart. It will change the colour of your teeth, rather than simply removing surface stains. Carbamide peroxide is another similar ingredient." Yes. Teeth whitening pens produce instant results but continue whitening teeth for several minutes to hours after application. The most effective bleaching agents are hydrogen peroxide or carbamide peroxide,” says Dr. Yazdani. “These are the most common chemicals used for in-office treatments.” He notes that you should keep an eye on your peroxide percentage. “Up to 10 percent peroxide content is considered safe for teeth; any higher, and you increase the risk of damage to your enamel.” Teeth whitening pens containing hydrogen or carbamide peroxide are proven to be safe and effective. While bleaching can cause tooth sensitivity, it is unlikely to happen with a whitening pen if you follow the recommended use. 4 How Effective are Teeth Whitening Pens?
SmileDirectClub recommends using the whitening pen twice daily for fuller results, which should take just one week to see. Application takes five minutes—and the cool mint flavor makes the wait even easier. We also like that this kit includes lip balm as teeth whitening can sometimes chap lips during treatment—so you can freshen up both simultaneously. We did notice some long-term discomfort over time, though, possibly because we felt like it was pretty abrasive. That created something of a catch-22 for us in testing—when we used the toothpaste, it whitened our teeth a couple of shades, but when we stopped using the toothpaste (because of sensitivity), we noticed that our teeth began yellowing and staining again almost immediately. The product felt like we needed to use it every single day to maintain an improved and brighter teeth shade. However, it noticeably caused teeth sensitivity that discouraged us from using it every day. Whitening strips — These are thin strips that contain some peroxide gel which you place on your teeth for an amount of timeWe did experience a bit of a funny aftertaste in the few minutes following application, but this isn’t unusual for whitening products, and it went away shortly after. We also like that the pen features a brush-tip applicator, which helps to evenly distribute the serum and get into the crevices between the teeth. Plus, after using it as directed, there was still plenty of product left in the pen that could be used for touch-ups down the line. Over-the-Counter Tooth Whitening Agents: A Review of Literature . ” Scientific Electronic Library Online Brazil. Since all types of whitening products are applied differently and have varying concentrations of ingredients, it’s important to follow the manufacturer’s directions for the application included with the specific product. Some people may experience tooth sensitivity or gum discomfort when using whitening products. This discomfort is temporary and not harmful. If you experience more than mild tooth sensitivity or gum discomfort, stop use and consult your dental professional.
Colgate Optic White Pro Series Teeth Whitening Pen and LED Tray: If you’re short on time, this kit only requires 10 minutes per day, but it’s not the most comfortable after application (and it’s more expensive than similar kits).
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Dr. Yazdani does note that you should be careful when applying teeth whitening pens, since they do require a little more free-hand work than most other whitening treatments. “Ensure you brush or rinse your mouth after directed use to help lower the risk of irritating your gums,” he says, because “if applied incorrectly, there is the possibility of irritating the gums.” Teeth whitening pens work the same way as other whitening products, but they use a serum to apply whitening ingredients to your teeth. Most teeth whitening pens use a peroxide formulation—either hydrogen or carbamide—to break down stains. “Peroxide gels break down into water, oxygen, and reactive oxygen molecules,” explains Dr. Velayo. “These reactive oxygen molecules treat both the enamel and the dentin, oxidizing the bonds of discolored stain molecules. By changing the stained molecules, the tooth becomes lighter.”
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