At-Home Teeth Whitening in Locust Valley



Why Have My Teeth Changed Color?

Our at-home solutions to getting whiter teeth are a convenient and gradual way to get rid of stubborn stains that discolor or darken your smile. Teeth lose their brilliance for a number of reasons, including lifestyle habits as well as unavoidable natural processes.

First and most commonly, teeth can be discolored due to drinking certain beverages with potent staining compounds, such as coffee, red wine, and dark sodas. Over time, certain chemicals in these drinks can react with oxygen to form a yellowing of the teeth. This can generally be avoided with proper dental hygiene and regular cleanings, or simply avoiding these beverages.

Compounds found in cigarettes can yellow teeth over time. Tar in cigarette smoke can build up on the teeth and darken them, and nicotine turns yellow when exposed to oxygen, gradually yellowing teeth as well.

At older ages, your body may begin producing more dentin, a yellowish-gray substance beneath the protective enamel coating of teeth, which can show through the enamel, creating the appearance of darker, dimmer teeth.

Any of these and other factors contribute to the yellowing or changing color of teeth, which can be fixed by personalized teeth whitening treatment plan at Locust Valley Dentistry.

bright new smile with teeth whitening at locust valley dentists new york

Ready to begin your journey to a healthy smile?

How Do I Use an At-Home Whitening Kit?

Although specifics will vary by patient, at-home whitening is a simple procedure. Brush and floss before applying whitening trays. Once per day, you spread the whitening gel on your trays, then apply them to your teeth as shown by Dr. Koster. Usually, treatments need to remain on your teeth for an hour, or as otherwise instructed. After you remove them, avoid eating or drinking for half an hour.

Depending on your personalized plan, at-home whitening takes about two weeks, during which time you’ll notice an immediate and significant brightening and whitening of your teeth as the treatment works. Dr. Koster will schedule a follow-up appointment after your whitening is over, where she’ll evaluate your results and measure the difference before and after.

Will My Teeth Be Sensitive or Sore?

Because the whitening solution uses a prescription-strength formula of either hydrogen peroxide or carbamide peroxide, side effects can include tooth sensitivity to heat, cold, or both. Whitening trays are formed to prevent the gel from contacting the gums, where it can cause irritation and sensitivity, however it remains a possibility.

Any sensitivity or soreness experienced as a result of whitening should be temporary, fading fully after a few weeks. If not, schedule an appointment with Dr. Koster to help identify what could be causing the discomfort.

How Long Until I See My Results?

Tooth whitening using at-home trays creates instant results when used as directed. It takes multiple sessions for the course of treatment to have a significant, noticeable effect, but in your follow-up appointment with Dr. Koster, you’ll be able to see before-and-after photos that reveal the treatment’s effect.

How Can I Keep My Teeth, White, After Whitening?

Simply put, maintaining your teeth’s whiteness simply requires good dental habits. Brushing at least twice a day and flossing once per day, as well as cutting back or eliminating the foods and drinks that caused your teeth staining are good ways to maintain a bright, white smile. In addition, quitting smoking or tobacco use will also ensure stains don’t build up again and you lose the benefits of at-home whitening.

If you do notice teeth losing their luster after a while, Dr. Koster can always provide additional whitening procedures, whether in-office or at home, to touch up the appearance of your teeth with professional-strength whiteners.

Meet Dr. Koster

Thanks to her work at many of Manhattan’s top cosmetic dental practices, Dr. Adrianne Koster has seen how a whiter smile can improve her patients’ appearance and self-confidence. She helps her patients achieve outstanding results and smiles that are healthy and beautiful.

Dr. Koster has been named a “Top New York Dentist” every year since 2016 based on her:


  • Attention to detail and skill
  • Warm, caring, and attentive rapport with patients
  • Emphasis on her patients’ happiness and comfort
  • Continued study of the latest dental technology
  • Passion for changing lives through cosmetic dentistry
meet teeth whitening dentist dr koster at locust valley dentists new york

Is Locust Valley Dentists right for you?

At Locust Valley Dentists, you always come first. We start every appointment by listening to you. You’re encouraged to share any concerns about how your smile looks or feels.

We’ll answer your questions and review the cosmetic treatment options available to you, including teeth whitening. We’ll talk about:

  • Common causes of stained teeth
  • Simple ways to minimize tooth staining at home
  • Different whitening treatment options
  • What you can expect from your treatment
  • How to maintain a healthy and beautiful smile for years to come

If you’re nervous about visiting the dentist, don’t worry.
At Locust Valley Dentists, we are known for being gentle, warm, and friendly. This will be the most relaxing and comfortable dental experience of your life! To decrease anxiety during treatment we offer our patients:



Soothing music




  • Convenient office hours to fit the busiest schedules


  • There’s never any stress or judgment here


  • Our modern, calm, and relaxing office is one of a kind


  • Learn how whiter teeth can improve your appearance and life

No Insurance? No problem.

Even if you don’t have dental insurance, you can still get the bright and white smile you’ve always dreamed about! At Locust Valley Dentists, we provide a variety of financing options. We’re here to answer all of your questions.

Insurance & Financing

For your cosmetic treatment, our office is able to work with many PPO insurances.

Our friendly front office team will help you file your claim and maximize your insurance benefits. If you don’t see your provider listed or if you have questions about payment options, contact our office to learn more.

teeth whitening with no insurance at locust valley dentists new york

The doctors and staff at this office are amazing! Some of the nicest people you can hope to meet, and the dental work that I received was phenomenal. The office is inviting, and the care that is taken to make sure things are done correctly is top tier. Great experience. "

- Roger V.

"Dr. Koster has done extensive dental work for me over the years. She is both kind and caring. She is thorough in her work and takes the time to explain in detail what she is doing. Her compassionate nature has a calming effect during her work. "

-Thomas H.

Both my daughter and I have been patients of Dr Koster's and we couldn't be happier. She has a gentle demeanor and is super thorough. She shows genuine concern for our teeth and gives us advice on what to keep doing/do more of to keep them healthy. Her office staff are really nice too. I am grateful to be in their good hands. "

- Dawn C. 

9am - 6pm
8am - 5pm
9am - 5pm
9am - 6pm
8am - 6pm