Friendly Staff. Beautiful Smiles. Welcoming Environment.


Welcome to Princeton Dental Designs

We appreciate the trust and confidence you have placed in us by choosing our practice. We are devoted to restoring and enhancing the health and natural beauty of your smile using conservative, yet advanced procedures.

This website is designed to provide valuable information, which we hope you will find useful in familiarizing yourself with our practice.  If there is anything you would like more information on, please feel free to give us a call so that we can better assist you.

We hope to see you soon!

We’ll Provide You With That Winning Smile!

Meet Our Team

  • Dr.
    Stephen Sim

    Dr. Sim was born and raised in New York and attended New York University for his undergraduate studies, where he received his bachelor’s degree. He successfully earned his doctoral degree from Temple University School of Dentistry in Philadelphia. Dr. Sim returned to New York and completed a general practice residency at the Montefiore Medical Center. 

  • Christina, Registered Dental Hygienist

    Christina has an associate's degree in Dental Hygiene and was the winner of the NJDHA’s Gurenlian Leadership Award in her graduating class. She is passionate about giving her patients high-quality care with their best interests and health in mind. She takes numerous hours of continuing education classes so she can educate our patients. In her personal time, she enjoys running races of all distances: marathons, triathlons, and obstacle races such as Spartans and tough mudders. She is a lifelong NJ resident and loves to spend time with her family, boyfriend and her Corgi named Little Bear.

  • Miki, Dental Assistant

    Miki is our Dental Assistant and has over 20 years of experience in the dental field. She is passionate about educating our patients about oral health care as it relates to personal health care. She is bilingual in English and Japanese. She enjoys spending her free time working out. She does daily cardio, weight training, biking and barre among others. She also loves to travel, cook and spend time with her rescue dog Cinnamon.

  • Rosa Certified Dental Assistant

    Rosa is a Certified Dental Assistant with over thirty years of experience in the dental field. In addition to holding her dental x-ray license and CPR certification, she continues to learn by taking continuing education classes and keeping up to date with the latest in dental technology and infection control. Rosa is the proud mother of Julia, serving as Girl Scout leader in her spare time. She enjoys spending time with her family (including her doggies), trips to the beach, and reading.

  • Keiko, Front Desk Coordinator

    Keiko has been greeting our patients with a smile at Princeton Dental Designs for 9 years. She received her bachelor’s degree at the Hokkaido University in Japan. She loves helping out patients with any of their scheduling needs, and she is bilingual in English and Japanese. In her free time, she enjoys playing golf and learning the art of Japanese tea ceremonies. She also enjoys spending time with her husband and her two grown sons.

  • Lisa, Office Manager

    Lisa has been working at Princeton Dental Designs for 5 years. She has an International Relations Degree from the University of Pennsylvania. Prior to working in the dental field, she worked in the fashion industry for over 10 years designing clothes. Now she prefers teeth over hemlines. Her favorite part of the job is getting to know our wonderful patients and helping to answer any questions they may have. In her free time, she enjoys spending time with her family and traveling to national parks.


What Our Patients Say About Us

    After trying a number of dentists in the area, Dr. Sim is the only one I really would recommend. His is gentile, knowledgeable, patient and conscious of each client's situation. His office is VERY clean and the staff members are attentive and very respectful. No negative aspects to report. He makes a trip to the dentist turn into a pleasant experience!

    Miriam M.

    Very professional staff at every stage. I am glad I found someone like this in the Princeton area and recommend their services highly.

    Neil M.

    An excellent dental professional and clinic with high quality and caring service.

    Honglan L.

    Dr. Sim has done a few treatments for me. Crown work, cavity filling, and teeth condition analysis in the last few years. He is the most trustworthy dentist in my experiences. He pays a great attention, taking time to listen and talk to his patients. He explains what needs to be done and options if any. My lower back tooth had a problem for a quite some time. He knew it has to be removed and get implant. However, he accommodated my request and tried to save the tooth. After having spent much time, he explained what he thought to be done. I listen to him because he is truthful and offer the best for his patient. I highly recommend Dr. Sim.

    Y K

    If I can give Dr. Sim and his staff higher than 5 stars I would. Every time I go for my appointments, I have nothing but pleasant experience. He always takes his time explaining the procedure and I never feel rushed. It's weird to think that I no longer mind going to dentist. If you are looking for a new dentist, look further!


    Attention to detail, Excellent Check Up and Cleaning! Dr. Sim is the most thorough and trust-worthy dentist I've been to. He doesn't rush or cut corners, trying to see as many patients as possible. He gives me the check up, tooth filling (oh, well!) and mouth guard fitting that I would want from a dental practice. My family have been going to this dentist 2x/yr for 10 years but I felt I must share a review today because he went the extra mile for me last week. My mother was visiting from another state and felt discomfort in her mouth. Dr. Sim readily agreed to see her to check for something serious -- and advised that we make an appointment for biopsy with her oral care professionals as soon as she got back to her home. He really takes care of my family!

    Sarah R.

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9:00 am-5:00 pm


9:00 am-5:00 pm


9:00 am-5:00 pm


9:00 am-5:00 pm


9:00 am-4:00 pm