Teeth Whitening in Locust Valley

Achieve the bright, beautiful smile you’ve always wanted!



Are you ready to love how you look? A bright smile starts right here.

At Locust Valley Dentists, our strong cosmetic focus allows us to help create smiles that are not just healthy but flawlessly beautiful as well. If given the opportunity to change something about their smile, nearly 80% of people would opt for whiter teeth. Teeth whitening is the fastest and easiest way to truly change your smile and how you feel about yourself.

Unlike other cosmetic treatments, teeth whitening doesn’t change the structure of your teeth and is completely non-invasive. You’ll see a noticeable improvement in the brightness of your smile in as little as a single treatment. Plus, our teeth whitening treatments are great for sensitive teeth.

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

Ready to begin your journey to a healthy smile?

What Causes Teeth to Change Color?

Many factors contribute to tooth discoloration, some of which are temporary and can be fixed with good dental hygiene, while others are the result of irreversible changes that can be treated at Locust Valley Dentistry.

Foods and Drinks

Perhaps the most common cause of tooth discoloration is pigments found in certain food products and drinks. The most notorious tooth stainers are coffee, red wine, and tea. Tooth whitening is often very successful at whitening teeth stained by your diet, but cutting back on these beverages and using good oral hygiene can also help bring back a pearly shine to your enamel.


Tobacco use will gradually darken and yellow teeth because of two active ingredients: tar and nicotine. Tar is a black substance that stains the enamel, and nicotine reacts with oxygen to create a yellowish compound. Tooth bleaching using treatments that include hydrogen peroxide can help break down these stains and make your smile whiter.


Beneath the hard, white exterior of the tooth, the enamel, lies a softer, yellower substance called dentin. As people age, the enamel is gradually worn down due to brushing and other wear and tear, revealing more of the yellowish dentin.


If you’re ever hit in the mouth, one side effect could be tooth discoloration. One way your body heals and protects teeth is by adding dentin, which is a darker, yellower color than the enamel that overlays it. More dentin, therefore, comes with yellower teeth.


Certain prescription drugs, like blood pressure medicine, antihistamines, and antipsychotic drugs can have the side effects of darkening teeth. Radiation and chemotherapy can also have this effect.

What to Expect From the Tooth Whitening Process

When you visit Locust Valley Dental for tooth whitening, you’ll first be evaluated by Dr. Koster, who will determine if your tooth staining or discoloration is extrinsic, meaning on the outside of the tooth, or intrinsic, caused by the internal structures of the teeth. Next, she’ll choose the appropriate teeth whitening option best suited for your unique condition, whether ZOOM gel or take-home trays or both.

Before beginning the tooth whitening process, Dr. Koster will clean and polish your teeth to remove any superficial debris and staining. If using ZOOM gel, the procedure will then take place in the office. If using whitening trays, Dr. Koster will take an impression of your teeth and explain the process thoroughly for you to perform in the comfort of your own home.

Our Teeth Whitening Options

Have you tried whitening strips, whitening toothpaste, or other DIY teeth whitening treatments and been disappointed by inconsistent or lackluster results? We have carefully selected the most effective whitening treatments available, including:

ZOOM In-Office Whitening

This approach uses the highly effective ZOOM whitening gel to clean and de-stain your teeth. A high-tech laser activates the gel once it’s applied to the teeth and accelerates the whitening process. All told, expect your ZOOM in-office whitening appointment to take about 90 minutes. You’ll see an increase of several shades of whiteness after your first treatment and, if needed, additional treatments can create even more dramatic results.

Custom Take-Home Whitening Trays

Unlike one-size-fits-all whitening strips, our custom trays are made just for you. This perfect fit ensures the trays are comfortable and that the whitening gel sits snugly against your teeth. The results are even, consistent, and amazing. Wear your trays as instructed by Dr. Koster and you’ll see gradual results after several days of use. At-home whitening also offers an effective way to maintain the whiteness of your teeth following an in-office whitening treatment or just as a whitening procedure that can be done in the comfort of your home.

Teeth Whitening FAQs

Can laser whitening damage your teeth?

Laser teeth whitening is safe and effective when performed by a trained dental professional like Dr. Koster.

Can whitening strips crack your teeth?

Whitening strips can damage your teeth by breaking down proteins, potentially leading to cracks for some patients. Because of this risk, it is best to seek teeth whitening treatment with a qualified dentist.

Can yellow teeth become white?

Yes, by using teeth whitening products and treatments that lift stains and discoloration from teeth. The strength and number of treatments that are right for you depend on the degree of tooth staining you have.

Do whitening strips work?

At-home, over-the-counter whitening strips can work but are not typically as effective as professional whitening treatments.

Does whitening remove stains?

Yes. Our in-office and take-home whitening services can remove even the toughest stains from teeth, making them appear many shades whiter.

How can I get rid of yellow teeth?

If your teeth are yellowed as a result of coffee drinking or tobacco use, Zoom whitening treatments can help restore your teeth and make them whiter and brighter.

How can I keep my teeth white and healthy?

Following a tooth whitening treatment, the best way to maintain your results is with good dental hygiene and regular visits to Dr. Koster for professional cleanings.

How can I Unstain my teeth?

A dentist such as Dr. Koster can offer professional whitening treatments to address staining on the teeth.

How can I whiten my teeth quickly?

The quickest teeth whitening treatments are also the most intense, meaning they are administered by a dentist, rather than found on the shelves of the health and beauty department.

How do I keep my teeth white after whitening?

Simply, practice good oral health habits. Brush your teeth twice a day and floss regularly, and avoid teeth-staining substances like nicotine, coffee, and wine. When you do use these substances, you can brush soon after to minimize their staining effects.

How do whitening trays work?

Whitening trays work by holding a whitening gel in close, constant contact with the teeth. The trays can be custom-molded to fit your teeth, allowing the ingredients in the whitening gel to work more effectively while you wear them.

How do you protect your gums when whitening your teeth?

To protect your gums during a teeth whitening treatment, Dr. Koster may place a protective gel or sheath over the gums to reduce the risk of irritation or contact with the whitening agents.

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. 

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