Siegfried Tjon Ajong, DMD, MSD

Write a Review201-670-4800

CLOSED NOW - Opens atTomorrow 10:00am

I was highly recommended to Dr. Ziggy and have not been disappointed. The attention to detail, great office staff, ability to listen and state of the art equipment are only a few of the highlights of my experience so far. This is truly a one of a kind practice.

Had my first implant with Dr Ajong and he used a Robotic Guided Surgery technique. Impressed with his facility, staff and total care. The Implant surgery procedure was quick less then one hour and I could go back to work after the procedure.
Painless no bleeding and felt very comfortable. I will definitely recommend my friends and family to have their implants placed with Robotic Guided Technique His practice is clean and state of the art. Great music and staff!

wonderful in every way

full mouth restoration

l always looked forward to my visits

i respect Dr Ziggy and all of his decisions and work

I came here about 10 years ago to discuss what to do with my ground down teeth, which were getting close to nerves, and eventually ended up with all new super crowns, which totally changed my bite, the look of my teeth, and my smile. I am very happy with them, and am so glad that I came here to begin with. Whenever I have any issues with my crowns, I am grateful to be able to come back here to resolve them.

ultimate professional service

I came to Dr. Ajong over 25years ago where he had to undo poor work done by another dentist. An example of doing the right thing was to do implants verses a bridge which would have destroyed perfectly good teeth. He has amazing insight into his profession and client relations. Top in his field. Highly recommend the doctor an the professionals that work for him.

I came for a follow up visit for a cleaning and to see whether my night-guard needed replacing. I got a very thorough cleaning and the Dr checked the night-guard in my mouth and advised me. Thorough and professional.

I have a real phobia about the dentist.

Everyone is so caring They do everything to make you feel comfortable. Follow up concern is wonderful



I get compliments all the time on my smile.



I recommend them to everyone I know.

Ziggy has been my dentist for over 40 years and I can only hope that he never retires. I had a full mouth rehab and felt comfortable and supported throughout the long and at times difficult process. Ziggy's office is state of the art and he employs the latest technologies.
I moved to the Berkshires 24 years ago and travel back to Ridgewood in order to continue seeing Ziggy. He really is simply the best.

I came to Dr. Ajong with a very complicated oral problem. I had deterioraton of my jaw due to post thyroid treatment plus my former dentist had left my left bottom jaw with debris which caused me major problems. Dr. Ajong headed a team and has me on my way to completion of some very serious dental work. He and Dr. Novelli work so well together to care for these dental hurdles. I have post 9-11 lung problems and Dr. Ajong got me into Sloan Kettering with Dr.Rhoades, whom he had worked with.

I hate going to the dentist and try to avoid it at all cost...but Dr. Ajong and his staff are the absolute best! They are gentle and caring, and make my visits a pleasure! I would highly recommend!!! Thanks for always making me feel comfortable

Ziggy is THE most amazing provider I have ever been to. He has done so much over the years and has done such an amazing job that I still fly all the way from Florida just to see him. He has saved and fixed crumbling teeth, did an amazing molar implant, and never does work that is unnecessary. He is amazing and passionate at what he does, and we recommend him to every single person we know near and far!

Dr.Ziggy has been my dentist for decades. He is extremely professional, personable, knowledgeable and caring. His work is exemplary and his character and demeanor are sterling. Although having dental work is not pleasant, Dr. Ziggy makes it almost enjoyable! I hold Dr. Ziggy's work and expertise in extremely high regard. He is definitely The Best!

Dr. Ziggy is the nicest Doctor you wish to meet. I have been going to him since i was 12, I am 26 now. I will not go to anyone else he is the best. Going to the dentist is always nerve racking but with him you do not have a worry in the world.

For over 15 years I have had the good fortune of being in Dr. Ajong's care. What can I say? I would be lost without his expertise, compassion and overall good nature. His is the paradigm by which all healthcare professional should follow.

I can always count on ZIggy to guide me in the right direction. I trust his decision making. The work he produces always looks amazing. I am lucky to have Ziggy doing work on my mouth.

found dentist i finally trust. v difficult in today's society. highly recommend!!!!!

The doctor is very conscientious and aims to please. He will do the best job possible for you.

always a wonderful experience