We know how important having a great smile is to looking and feeling good. That is why Dr. Juanita Fonseca, DDS, MS is committed to providing the highest quality in orthodontics.


Leveraging today's latest digital technology, Dr. Fonseca can create results that change how you look and feel. Whether you need braces for children or adults, Dr. Fonseca offers a wide variety of procedures to uniquely fit your needs. In addition, our friendly staff ensures your visit to the orthodontist is affordable and comfortable. If you are searching for an orthodontist look no further, contact us today at (603) 436-7787.


We invite you to look around our site to learn more about Dr. Fonseca and our orthodontic practice to see how we can be an integral part of your dental care. We know that the first step towards a beautiful smile begins with selecting an orthodontist that you can rely on. Do not hesitate to give us a call if you have any questions, or if you would like to schedule an appointment.

  • Dr. Juanita Fonseca, DDS, MS
    278 Lafayette Road
    Lafayette Professional Park, Bldg E
    Portsmouth, NH 03801
    Phone: (603)-436-7791
    Office Hours
    7:00 AM- 7:00 PM
    7:00 AM- 5:00 PM
    7:00 AM- 7:00 PM
    7:00 AM- 7:00 PM
    8:00 AM- 2:00 PM (Every Other)