Dr. Thomas Lien is originally from Santa Monica, California where he received his Bachelor of Science degree from Univ. of California at Los Angeles. He received his Doctoral Dental degree from the New York University College of Dentistry where he graduated with honors at the top of his class and was inducted into the national dental honor society. He continued his post-doctorate studies at New York University College of Dentistry where he completed a residency in Orthodontics and Dentofacial Orthopedics. During his residency, he was a clinical instructor in Invisalign and a seminar lecturer for the pre-doctoral students on the theory of Orthodontics, as well as the diagnosis and treatment planning of cases. Upon completing his residency, he was invited to teach at the NYU College of Dentistry post-graduate Orthodontic program as a Clinical Assistant Professor where he currently instructs residents on Invisalign treatment as well as traditional braces. He has a research interest in elevating patient management and improving orthodontic treatment implementation by assessing growth and skeletal maturation which has garnered clinical research awards.

Dr. Lien firmly believes that everyone deserves a healthy, beautiful smile. A balanced, gorgeous smile conveys confidence, attractiveness, and an overall sense of well-being that can enhance relationships both socially and professionally. Over the years, he has had the opportunity to meet so many wonderful people, and the friendships that he’s built with his patients and their families are one in a million. It has always been his focus to make each patient feel at-home when they come to the office for treatment and he always works hard to give all the patients the attention they deserve. Dr. Lien is dedicated to helping you achieve that dream smile and truly embodies our motto of “creating beautiful smiles that changes lives!


  • Doctorate of Dental Surgery – New York University
  • Certificate of Speciality in Orthodontics and Dentofacial Orthopedics – New York University
  • Certificate in Invisalign and Invisalign Teen
  • Certificate in Lingual Orthodontics

Continuing Education and Associations

By regularly participating in continuing education, Dr. Lien is able to stay current on the latest technology and orthodontic treatments. Truly believing that his patients deserve the best, he maintains current continuing education which allows him to provide them with more options and better results. Dr, Lien is also a member of several professional associations that provide him with opportunities for continuing education.

  • American Association of Orthodontics (AAO)
  • American Dental Association (ADA)
  • North East Society of Orthodontics (NESO)
  • Consortium for Translational Orthodontic Research (CTOR)
  • Omicron Kappa Upsilon (OKU) – Dental Honor Society for Academic Excellence

Outside the office

Dr. Lien is an avid practitioner of Brazilian Jiu-Jitsu, staying fit and healthy, playing with his dog Renzo, and enjoys traveling around the world to appreciate culture through culinary experiences.