Teeth whitening is one of the most popular cosmetic dental treatments, offering a quick and effective way to brighten your smile. However, many people experience tooth sensitivity after whitening, which can cause discomfort when eating or drinking hot, cold, or sweet things. The good news is that sensitivity is usually temporary, and even better, it can often be prevented or minimized with the right care before and after treatment.
Here’s what you need to know to help avoid sensitivity after whitening your teeth.
Why Does Teeth Whitening Cause Sensitivity?
Tooth whitening products, whether done in-office or at home, work by using peroxide-based agents to penetrate the enamel and break down stains. During this process, tiny pores in the enamel open up, which can temporarily expose the dentin layer underneath where the nerve endings live. This exposure can make your teeth more sensitive to temperature and certain foods.
Fortunately, the enamel re-mineralizes and seals itself again within a few days, but you don’t have to suffer in the meantime.
Choose the Right Whitening Method
Professional whitening treatments at the dentist’s office are generally safer for sensitive teeth because they’re controlled and supervised. If you’re using an at-home kit, make sure it’s ADA-approved and follow the instructions carefully. Overusing whitening products or using ones with high concentrations of peroxide can increase your chances of sensitivity.
If you’ve had sensitivity in the past, ask your dentist about low-sensitivity or custom-fit whitening trays that reduce exposure to the gums and surrounding areas.
Use a Desensitizing Toothpaste Before and After
Start brushing with a desensitizing toothpaste at least two weeks before your whitening treatment and continue using it afterward. These toothpastes contain ingredients like potassium nitrate and stannous fluoride that help block nerve signals and strengthen enamel.
Also, avoid abrasive whitening toothpastes right after treatment, as they can worsen sensitivity.
Avoid Very Hot or Cold Foods and Drinks
Your teeth will be more sensitive right after whitening, so it’s best to avoid extreme temperatures for a few days. Skip hot coffee, ice water, and very cold desserts. Stick to lukewarm meals and drinks until your teeth start feeling normal again.
Don’t Overdo It
More whitening doesn’t always mean better results. Stick to the recommended usage, whether it’s daily strips, trays, or in-office sessions. Over-whitening can damage enamel and lead to prolonged sensitivity.
If you’re not seeing the results you want, talk to your dentist instead of increasing the frequency on your own.
Re-mineralize Your Teeth
After whitening, your enamel is more porous. Help it recover by using products that contain fluoride or calcium phosphate, which can promote re-mineralization. Some dentists offer fluoride varnishes or gels as part of your treatment plan.
You can also eat mineral-rich foods like leafy greens, dairy, and almonds to support your enamel’s recovery.
While sensitivity after teeth whitening is common, it’s also preventable. By choosing the right method, prepping your teeth with desensitizing products, and following aftercare tips, you can enjoy a brighter smile without the sting. A dazzling smile should feel as good as it looks!
About the Practice
Ready to give yourself a glow-up with whiter teeth? At Grateful Dentists, we offer take-home whitening kits so you can rejuvenate the brilliance of your smile from the comfort of your own home. Our treatments utilize professional-grade hydrogen peroxide, fluoride, and potassium nitrate whitening gel for comfortable, safe, and highly effective results. If you’re ready to professionally upgrade your smile, schedule your appointment online or by calling one of our conveniently located offices in the Billerica area.