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Cosmetic Dentistry in Locust Valley, NY

Your brightest and healthiest smile is possible!



Meet Dr. Koster

Dr. Adrianne Koster helps patients achieve beautiful, healthy, and confident smiles. That’s the focus and goal of her cosmetic work at Locust Valley Dentists. She’s an award-winning dentist known for her attention to detail and skillful use of the latest dental technologies and treatments. Patients who visit her practice learn about their dental health and all of the cosmetic dental treatments available to them.

She is a graduate of The State University at Stony Brook Dental School and completed a General Practice Residency at the Long Island College Hospital in Brooklyn, NY where she treated an underserved community and developed her clinical skills. During her early career, she worked at several prestigious Manhattan practices where she developed her unique patient-first approach to cosmetic dentistry.

cosmetic dentistry with dr koster at locust valley dentists new york

" Dr. Koster is a great dentist who is patient, attentive, and gentle.  She took the time to explain every treatment option available and made sure that all of my questions and concerns were addressed. The staff is very friendly and always willing to work around my schedule.  I would definitely recommend Dr. Koster for your dental care. "

- Jeniza K.

I love this office! Dr Koster knows what she’s doing and has great staff that are friendly and professional! What I appreciate the most is her attention to detail, looking out for my best interest and letting me know what’s happening with my health so I can take better care of myself. This Doctor is truly someone who cares about her patients!!! "

- Renee S.

Dr. Adrianne Koster is Amazing! She is caring, gentle, extremely personable, and provides exceptional dentistry. The staff is very professional and nice. Thank you! I love my new smile. "

- Maria G.

Ready to begin your journey to a healthy smile?

Cosmetic Dentistry Services

We believe beautiful smiles are built on a healthy foundation. When you visit our practice, we’ll begin by assessing the health of your teeth and gums to ensure the success and durability of any cosmetic treatments we may recommend. All cosmetic treatments offered at our practice are chosen based upon our experience as well as their success in many scientific studies.

cosmetic dentistry with invisalign at locust valley dentists new york


Straighten your smile without metal braces. Invisalign is the discreet, comfortable, and truly effective way to correct misaligned teeth without the pain, hassle, and headaches of traditional orthodontics.


White fillings don’t just look better, they’re better for your teeth, too! Composite and porcelain tend to be smaller than silver mercury-amalgam fillings and actually make your teeth stronger, too.

cosmetic dentistry fillings at locust valley dentists new york
cosmetic dentistry crowns at locust valley dentists new york


Restore the shape, function, and appearance of your tooth with a natural tooth-colored porcelain crown. They’re custom made to look just like your natural teeth and allow you to eat and smile with confidence.


One of the most flexible cosmetic treatments available, porcelain veneers fix chips, cracks, deeply set stains, and even small gaps between teeth. Transform your entire smile with the help of porcelain veneers.

cosmetic dentistry veneers at locust valley dentists new york
cosmetic dentistry whitening at locust valley dentists new york


A brighter smile can make you look and feel years younger. We offer custom take-home whitening trays and powerful in-office ZOOM whitening. Our cosmetic dentist will help you find the right whitening option for you.

Sedation Dentistry FAQs

Do I need sedation for tooth extraction?

Typically, your dentist will administer local anesthesia and sedation before a tooth extraction so you are pain-free during the procedure and remain relaxed.

Does sedation dentistry cost more?

There is a cost associated with sedation dentistry that patients would not have to pay for procedures that don’t require sedation. Generally, sedation is charged according to the amount of time you are sedated.

How does sedation dentistry work?

There are different types of sedation dentistry available that work in different ways. Your dentist may prescribe an oral sedative, which you can take before your procedure. Nitrous oxide is also an option, which you will breathe in before your procedure. After the medication has taken effect, you will feel relaxed, drowsy, and content.

Is dental IV sedation safe?

Dental IV sedation is safe. For some patients, including those with sleep apnea or who are obese, IV sedation may not be recommended.

Is dental sedation safe?

Dental sedation is safe, but it’s important to choose an experienced, trustworthy dentist for your sedation procedure.

What are the side effects of oral sedation?

Some common side effects of oral sedation include dizziness, dry mouth, nausea, or headaches. Not all patients will experience these side effects.

What can I expect after sedation dentistry?

After a sedation dentistry procedure, you can expect to feel drowsy and should have someone drive you home. It’s best to avoid drinking alcohol, a strenuous activity like exercise, and driving or operating machinery for at least 24 hours.

What should I do before dental sedation?

Before your dental sedation, you should avoid eating or drinking for about 6-8 hours, arrange for someone to drive you home after the procedure, and avoid taking medication unless your dentist has approved it.

Why no food or drink before IV sedation?

IV sedation stops your body’s reflexes temporarily. This causes a risk of vomiting if your stomach contains food or drink, so it’s important to avoid eating or drinking for several hours ahead of your procedure

Will I feel any pain with dental sedation?

IV sedation allows you to feel no pain during your dental procedure.

Why choose Locust Valley Dentists?


  • Our convenient office has hours to fit your busy schedule


  • You’ll find no stress and no judgments here, just a focus on your smile


  • Our modern, calm, and relaxing office has the cosmetic treatments you need


  • Learn how to improve the aesthetics of your smile from our friendly team

No Insurance? No problem.

We believe you don’t need dental insurance to achieve the beautiful smile of your dreams. We work with our patients and offer a variety of flexible financing options. If you have questions about how much your visit will cost, just let us know.

Insurance & Financing

Locust Valley Dentists works with most PPO insurance providers.

We can help you file your claim and maximize insurance benefits for your cosmetic treatments. Don’t see your insurer listed? Have questions about payment options?

Call us at (516) 759-2288 for more information.

cosmetic dentistry with no insurance at locust valley dentists new york

" Dr. Koster is the absolute best. I wish I had found her sooner. She really cares about her patients! "

- Kelly M.

" I had a great appointment with Dr. Koster. She is really knowledgable and friendly. Not pushy like my last dentist. Highly recommend! "

- Djuro K.

" Dr Koster is very knowledgeable about all aspects of Dental Care. She also has a caring nature  I would highly recommend her. "

- Linda C.

9am - 6:30pm
8am - 5pm
9am - 6:30pm
8am - 5pm
Every other Saturday
8am - 2pm