How Long Can At-Home Teeth Whitening Results Last?

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Dr. Lady Ung

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6/24/2025

At-home teeth whitening is a popular option for enhancing a smile, especially when using products recommended by a dental professional. These treatments can noticeably improve the appearance of yellow or stained teeth, offering a convenient way to achieve a brighter smile from home. The longevity of results depends on several factors, including oral hygiene, diet, lifestyle habits, and the quality of the whitening system used. With the right approach, many people see long-term improvements in the color and brightness of their teeth.

At UMG Family Dentistry in Columbia, MD, Dr. Lady Ung offers professional at-home teeth whitening kits with customized trays designed to help patients maintain a healthier-looking, more radiant smile.

How does at-home teeth whitening work on stained teeth?

At-home teeth whitening provided by a dentist works by targeting stained, yellow, or discolored teeth using professional-grade whitening gel. Unlike store-bought products, these treatments include customized whitening trays that can fit your teeth perfectly.

This allows the whitening gel to make even contact with each tooth, improving comfort and effectiveness. The active ingredients in the gel break down surface stains and lighten discoloration deep within the enamel. Common causes of stained teeth include:

  • Coffee
  • Red wine
  • Tea
  • Tobacco
  • Soda and dark-colored beverages

These causes can be minimized with regular whitening and proper aftercare. Patients receive a detailed plan on how to use the trays and gel safely and effectively for gradual, noticeable improvement.

How long does at-home teeth whitening last with proper care?

Professional at-home whitening typically produces longer-lasting results than over-the-counter kits. How long at-home teeth whitening lasts depends on your daily habits and how well you care for your smile after treatment. With consistent at-home teeth whitening aftercare, your brighter smile can be maintained effectively. Here are some key habits that help extend the life of your whitening results:

  • Avoid stain-causing foods and drinks like coffee, tea, red wine, and soda
  • Maintain a strong oral hygiene routine, including brushing and flossing daily
  • Refrain from smoking or using tobacco products
  • Schedule regular dental cleanings and checkups
  • Use touch-up treatments as recommended by your dentist

Following these steps can help you enjoy a whiter, brighter smile for much longer.

How often can you do at-home teeth whitening treatments?

You can safely whiten teeth at home a few times a year using professional kits under dental supervision. Overusing whitening gel or trays without guidance can lead to sensitivity or enamel issues. Dr. Ung customizes treatment recommendations based on oral health and whitening goals. Touch-up applications using leftover whitening gel and your custom trays can help maintain a consistent look over time. Sticking with a dentist-supervised routine ensures long-term results while protecting your teeth and gums.

Get professional teeth whitening in Columbia, MD

For patients looking to improve yellow or discolored teeth, UMG Family Dentistry in Columbia, MD offers professional at-home teeth whitening kits with customized trays. Dr. Lady Ung provides care and personalized instructions to help you achieve and maintain a brighter smile safely and effectively. You can also explore before and after photos from real patients who've used our whitening system to see what kind of results are possible. Contact us today to get started on your journey toward a whiter, more confident smile.

Took all three of my kids (7, 9, and 12 years old) to UMG Dental and had a great experience! Dr. Ung was kind, thorough, and took the time to explain everything clearly to each child. The kids felt comfortable, and I really appreciated how well everything was handled from start to finish. Highly recommend!

C.H. Google

Trustworthy and attentive dental care by Catherine and Dr. Ung. I'm very glad I switched their team.

T.P. Google

Le docteur est tres gentille et accueillante.

R.M. Google

Fantastic dentist and practice - Dr. Ung, is very personable and caring. She works with you on and listens to your concerns. My mother is 93 and looked like she needed three teeth pulled and get fitted for dentures. Once the doctor had a better view of her teeth she determined that she could save one with a crown. My mom was thrilled. She didn't have much pain and is recovering well. Waiting for the crown to come back and then mom can get scanned for her dentures. All of the staff are great and it is a very warm and inviting atmosphere at the office. Note, there is also urgent care and physical therapy services at the location.

Anonymous Healthgrades

Dr. Ung is so kind and caring! I had an amazing experience with all of the professionals in the practice! The entire staff is warm, attentive, and patient-centered! Five stars!!! The BEST!—A forever patient!

P.S. Google

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* All information subject to change. Images may contain models. Individual results are not guaranteed and may vary.