Smithtown Orthodontics Board Certified Orthodontist in Smithtown, NY

Dr. Duane Shank provides experienced, personalized care for patients of all ages throughout Smithtown and nearby communities. Whether you’re considering traditional braces or Invisalign® clear aligners, we offer flexible financing and clear treatment plans to make high-quality orthodontic care accessible.

Advanced Care Designed Around You

We use modern technology, including digital scanning and advanced treatment planning, to evaluate your smile with precision. From bite alignment to overall oral function, every detail is carefully considered to deliver results that are both effective and long-lasting.

Start Your Smile Journey with Confidence

At Smithtown Orthodontics, we’re committed to helping every patient achieve a healthy, confident smile. From early orthodontic care to teen and adult treatment, our approach is always personalized, comfortable, and focused on your goals.

Schedule Your Consultation

Ready to get started? Book your complimentary consultation or request an appointment online. Our team is here to make your experience simple, convenient, and stress-free.

Your Smile Starts with Dr. Shank

With decades of experience in orthodontics, Dr. Duane Shank is committed to delivering precise, personalized care for every patient. His expertise in diagnosing and treating a wide range of orthodontic concerns allows him to create effective, customized treatment plans focused on long-term results.

As a board-certified orthodontist, Dr. Shank combines advanced techniques with a detail-oriented approach to ensure each patient receives high-quality, reliable care. His focus is on achieving healthy, balanced smiles in a comfortable and supportive environment.

Expertise Backed by Board Certification

Board-certified care you can trust, focused on creating healthy, confident smiles with experience and precision.

25+ Years of Experience
5,000+ Smiles Transformed

A Better Experience Every Visit

A Team You Can Trust

Our experienced team is dedicated to providing consistent, high-quality care with a personal touch, so you feel comfortable and confident at every visit.

Relaxing, Positive Environment

We’ve created a welcoming space where patients of all ages can feel at ease, making every appointment smooth, comfortable, and stress-free.

Honest Guidance Every Step of the Way

We believe in clear communication and thoughtful recommendations, helping you feel informed, supported, and confident throughout your treatment.

Healthy Smiles at Every Age

Early Orthodontics

Early treatment helps guide jaw growth and create space for developing teeth, reducing the need for more complex care later. Starting at the right time builds a strong foundation for a healthy, confident smile.

Teen Orthodontics

Teen treatment focuses on correcting alignment and bite issues during key growth years. With flexible options available, teens can achieve a confident smile in a way that fits their lifestyle.

Adult Orthodontics

It’s never too late to improve your smile. Adult orthodontics offers discreet, effective solutions to enhance both appearance and long-term oral health with results that last.

Treatment Options for Every Smile

At Smithtown Orthodontics, we offer modern treatment options designed to fit your needs, goals, and lifestyle. Whether you’re looking for a more traditional approach or a discreet alternative, our team will guide you to the right solution for a healthy, confident smile.

Metal Braces

Metal braces remain one of the most effective ways to correct a wide range of orthodontic concerns. Today’s designs are smaller, more comfortable, and highly reliable for achieving precise, long-lasting results.

Clear Aligners

Clear aligners offer a discreet, flexible way to straighten your teeth. Removable and comfortable, they allow you to maintain your routine while improving your smile with minimal disruption.

5-Star Smiles Our Patients Love

peter vassel
2 days ago
Dr. Shank is the best doctor. He is professional and caring.
Mary Pampena
1 month ago
I absolutely love Dr. Shank’s office. My family and I have been dealing with the practice for years. Dr. Shank, the staff, are absolutely Amazing, Friendly, Outgoing, and Professional, I’m still going there 🙂
Helen Derosa
1 month ago
Dr Shank and his staff are amazing! I highly recommend them
Keith Gersh
2 months ago
Always a pleasure to see Dr Shank and his associates.
Carin Murtha
2 months ago
I had a great experience with my 3 children. The office is always on time, everyone is friendly, and Dr. Shank is always available if issues arise. Highly recommend!
Joshua F
2 months ago
This place is the best. This office is run so well and all the staff are so friendly. Also Dr Shank is very professional and polite.
Cari
2 months ago
As a mom, I couldn’t be happier with my son’s smile after two years of treatment! The results are amazing. Dr. Shank and his staff are always so friendly, caring, and welcoming. We’re so grateful for their outstanding care—highly recommend!
John Altieri
2 months ago
What can I say, Smithtown Orthodontics is the BEST!! The entire staff is very courteous and professional. They all make you feel very comfortable. The office is very clean.
Stephanie Ginsberg
2 months ago
We had an excellent experience with Smithtown Orthodontics from start to finish. The entire team is professional, welcoming, and truly cares about their patients. The office is clean and runs on time, which we really appreciate. Dr. Shank took his time to thoroughly explain my child's treatment options and made sure we both felt comfortable and informed every step of the way. Throughout my treatment, we saw consistent progress and felt confident we were in great hands. What really stood out to me was their flexibility and dedication. My college student is only home for a few days at a time which leaves very little room to get everything done however Dr. Shank agreeded to come in on a Saturday during a holiday weekend to accommodate us. That level of care and commitment is truly above and beyond. The staff is also amazing—friendly, helpful, and always willing to go the extra mile to accommodate scheduling or answer any questions. My child's results exceeded my expectations, and I couldn’t be happier with the final outcome. I highly recommend this practice to anyone looking for high-quality orthodontic care!
Arjun Kumar
2 months ago
Dr. Shank is the best! He’s attentive, detail-oriented, and an amazing orthodontist. His staff is extremely pleasant and gentle. Very clean office and streamlined office flow.
serena rose
2 months ago
I have had such a great experience here with braces and Invisalign! Dr. Shank and all the staff are so friendly and attentive!
Kelly McGovern
2 months ago
Dr. Shank and his entire staff are the best of the best. They are experts in the field, extremely knowledgeable as well as professional and kind. Highly recommend this practice.
Janelle Bellotti
3 months ago
We just finished a two-year journey with Dr. Shank. We couldn’t be happier with the experience for our child. From the very beginning, the team was personable, warm, and incredibly attentive. One of the things we appreciated most was his honesty—he never over-promised or exaggerated the prognosis, giving us a realistic and clear plan from day one. Scheduling was also a breeze; whenever we needed an appointment, they were flexible and made sure we were seen quickly. After two years in braces, we had a seamless transition into six months of full-time retainer wear. We are now on a ‘need to call’ basis, and our child has a great smile to show for it. We highly recommend them to any parent looking for a team that truly meets your needs. Thank you Dr. Shank for making this a great and easy experience!
Michelle Pachomski
3 months ago
Dr. Shank and his staff are amazing! They are always so helpful!
Toni Finn
3 months ago
Best office ever! Everyone is ALWAYS so nice and accommodating. We recommend Dr Shank and the office to everyone.
Gina
3 months ago
Dr. Shank & Staff are so nice & office is clean! We love how efficient appointments are scheduled! We are in & out in a timely manner!
Cara Keil
3 months ago
Dr. Shank is wonderful and very thorough, both my daughters have had their braces with him and have beautiful smiles from him!
Sean Murphy
8 months ago
We cannot say enough good things about Dr. Shank and his office staff at Smithtown Orthodontics. Dr. Shank is thorough, professional and delivers a great smile! He evaluated our daughter for orthodontics while she was in middle school and gave us a tentative date to come back to see him for further evaluation. When our daughter was ready, his office staff met with us to discuss a payment plan that was right for us and the cost was surprisingly reasonable. Our daughter presented with some complications, such as spacing issues as well as an impacted tooth that went sideways. She had to have oral surgery so that Dr. Shank could work to bring the tooth down into place. In the end, when the braces were taken off, our daughter had a picture-perfect smile! She is so incredibly happy with her new smile. We are very pleased with the entire experience from beginning to end. Any questions or concerns that we had along the way was met with kindness and detailed explanations. We were walked through the entire process feeling as if we knew what was going on every step of the way. Thank you Dr. Shank and your wonderful office for a wonderful experience overall! We would happily recommend you to all of our family and friends for orthodontic care!
Dawn Muir
11 months ago
My children finished with perfect smiles! Dr. Shank and his staff family cannot be beat! Patience and perfection!
Erin Petrocelli
12 months ago
Dr Shank and his entire staff are incredible!!! My son just got his braces off today and we can’t wait for our daughter to go so we get to see them all the time again!!!
Nicole Adams
2 years ago
My daughter had such a great experience with Dr Shank and all of his staff. Everyone is friendly and helpful all the time. The office always runs on time and gets you in and out quickly. Can’t say enough good things. Dr. Shank asked that we trust him from the beginning and give him time to get her teeth looking their best. He exceeded our expectations. At one point, a wire came loose and we needed an emergency appointment on a Sunday. Dr Shank never hesitated and met us at the office when it was convenient for us. Looking forward to bringing my younger daughter when it’s her turn. Thank you again to everyone in the office.
Kristen Kollmer
2 years ago
I found Dr. Shank through the the recommendation of a friend who raved about her daughter's experience and could not say enough positive things about Smithtown Orthodontics. After my first visit to the office, I understood why. There just is something special about Dr. Shank and his staff that sets Smithtown Orthodontics apart. There are so many things I could say about the practice: the staff is lovely, Dr. Shank is wonderful, the office is warm and inviting, making appointments is a breeze. But, what really makes this office special is that Dr. Shank makes you feel like family. He is so kind and compassionate, and he really cares about his patients. It was an absolute pleasure working with him, and I am so pleased with the results on my oldest son's teeth that I just had my middle child in for a consult with Dr. Shank today.
Natalie Mertens
2 years ago
Dr. Shank and his entire staff are courteous, knowledgeable,and professional. I primarily had follow up appointments with Melissa who is outstanding and attentive to detail when explaining next steps. I am so happy, confident, and thankful for my new smile. Thanks Dr. Shank and team!
Colleen Kovacs
2 years ago
If you are looking for an orthodontist, look no further, Dr. Shank hands down is the best. Dr. Shank as well as his staff are kind, caring and extremely knowledgeable in all aspects of Orthodontics. They are always on time for your appointments and if there is an emergency, they will make sure to get you the earliest appointment.
Terrie Allen
2 years ago
THANK YOU. Not only to the phenomenal staff but the doctor who takes his time to speak with you, very kind and easy to talk with. I wish I found them sooner! Also thank you for getting me in on such short notice.

Before & After Transformations