Specialized Orthodontics and Kids Dentistry in Manhattan, NYC+

Our Range of Specialized Dental Services

Beautiful smiles for all ages start with caring, precise dental care. At the Smiles + Grins dental clinic in Manhattan, patients receive the time and attention they deserve with treatment options that include:

orthodontic patient

Orthodontics

We are passionate about delivering orthodontic artistry, service, and personalized care that exceeds all possible expectations — for all ages and lifestyles. That requires thorough listening, supreme expertise, and the latest technology.

Explore your smile with us and book a consultation today.

pediatric dentistry patient

Pediatric Dentistry

Going to the Dentist should be fun and exciting. A place to learn about your oral health and the possibility to create a beautiful, healthy smile.

Smiles+Grins Pediatric Dentistry is about you and your family. Dentistry is our calling and people are our passion. We looking forward to smiling with you in the big city.

Stay Connected With Us

Visit Our Office

Mon: 9:00 AM – 6:00 PMTue: 9:00 AM – 5:00 PMWed: 8:00 AM – 5:00 PMThu: 8:30 AM – 7:00 PMFri: 9:00 AM – 5:00 PMSat: 10:00 AM – 3:00 PM (by appointment only)

Why Choose Our Dental Office in Manhattan’s Upper East Side?

Smiles + Grins is a dentistry in the heart of the neighborhood that “gets it.” Patients enter a comfortable office with modern treatments and the highest standards offering:

5,000+ Smiles Created

Led by Dr. Liel and Dr. Karin, our dedicated specialists have years of expertise and have crafted over 5,000 happy smiles.

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670+ Positive Reviews

Families from all over leave rave reviews, praising the quality of care and attention to detail they receive.

Reliable Pricing

No hidden fees or surprises. Treatment coordinators provide upfront pricing and can assist patients with in-office financing.

Tech-Savvy

We offer high-tech images, 3D scans, and the latest and greatest technology to each patient who schedules an appointment.

Meet the Founders of Smiles + Grins

Two teams with the same great results.
Photo of Dr Karin Grinbaum DDS

Dr. Karin Grinbaum, an award-winning orthodontist and NYU graduate, is the founder of Smiles + Grins and a member of the OKU Honor Society. With 10+ years of experience, she specializes in developing distinctive, self-assured smiles through customized procedures such as Invisalign® and InSmile®.

Photo of Dr Liel Grinbaum DMD

Dr. Liel Grinbaum is a board-certified pediatric dentist with a DMD from the University of Medicine & Dentistry of New Jersey and advanced training at North Shore University Hospital and Maimonides Medical Center. He focuses on gentle, stress-free care so every child feels safe and comfortable.

Smiles+Grins Orthodontics & Pediatric Dentist place picture
4.9
Based on 628 reviews
Indiana Aleman profile picture
Indiana Aleman
1 year ago
Excellent, professional care and service. I HIGHLY recommend!
Response from the owner
2 years ago
We appreciate you taking the time to leave us a 5-star review!
Dor Reich profile picture
Dor Reich
1 year ago
My visit was very smooth and super comfortable. All staff were friendly and professional. I came with my daughter for consultation and was received all required information and a detailed plan for how to move forward. I will definitely recommend this place to any person that is looking for any dental services.
Response from the owner
3 years ago
Hi Dor, We love taking care of your family! Thanks for sharing your experience and we hope to see you soon at smiles + grins.
Amire Pacolli profile picture
Amire Pacolli
1 year ago
Response from the owner
2 years ago
Thank you, Amire! We appreciate your 5-star review!
Anthony M profile picture
Anthony M
1 year ago
Really nice office packed with some great staff. I was lucky enough to get a cleaning from Lynnette the hygienist and she did a fantastic job. Also, doing invisalign at this location and the treatment has been fantastic. Definitely recommend.
I had an outstanding experience with Dr. Karin Grinbaum and her team for my Invisalign treatment. From start to finish, she was extremely detail-oriented and a true perfectionist, always making sure every step was just right. Appointments were consistently on time, and the office is very professional and well-run.

Karin originally estimated my treatment would take 12 months, and it ended up lasting 13 – a very reasonable and transparent adjustment. I always felt I was in expert hands, and I’m truly happy with the results. A solid 10/10 experience – highly recommended!
Response from the owner
1 year ago
Thank you Gabriel! We appreciate your amazing feedback and we're also grateful for you at smiles + grins! Enjoy your beautiful smile!
Olga K profile picture
Olga K
1 year ago
After almost two years of treatment, I can genuinely say it was all worth it – I’m so happy with my smile! Every visit to Smiles and Grins felt warm and welcoming. Dr. Karin Grinbaum is a fantastic orthodontist and one of the kindest doctors I’ve ever met. The team’s care, patience, and positivity made this journey truly special. ✨
Forever grateful 🫶
Response from the owner
1 year ago
Thank you Olga! We appreciate your fantastic feedback and we're also grateful for you at smiles + grins! Enjoy your beautiful smile!
Dianne N profile picture
Dianne N
1 year ago
Great team, great dentist my son has had braces on for a little over 2 years and next visit he’s getting them removed! I can’t wait. Dr. Grinbaum not only runs a tight ship but one that is clean and organized. She’s got an amazing personality which is huge. Overall as an over protective mom I highly recommend her as an orthodontist anytime.
Response from the owner
1 year ago
Hi Dianne, Thank you for taking the time to leave a 5-star review! We're happy to hear about your positive experience and appreciate you recommending us!
Sheena Serafin profile picture
Sheena Serafin
1 year ago
Response from the owner
1 year ago
Thank you Sheena!
Latasha Tayyiba profile picture
Latasha Tayyiba
1 year ago
⭐️⭐️⭐️⭐️⭐️ If I could give 10 stars, I would!

This dental office is truly one of a kind. They are so accommodating, especially when we're running late which honestly happens often because it's always hard for me to find parking. But no matter what, they are always kind and still find a way to fit us into the schedule.

I travel a long way just to bring my children here, and it's absolutely worth it. All of my kids go here and the staff is incredibly patient, respectful, and understanding. I've never had a bad experience not once.

The environment is warm and welcoming, and my kids actually love going! They even tell me, “Please don’t take us anywhere else!” That says everything.

Thank you all for the amazing work you do. You make dental care feel easy, friendly, and truly family centered.
Response from the owner
1 year ago
Hi Latasha, Thank you for taking the time to leave us a detailed review. It's great to hear your kids love their visits just as much as we love having them. We hope to see the whole family again soon!
Minahil Asad profile picture
Minahil Asad
1 year ago
Response from the owner
1 year ago
Thank you for the five star review!