The modern medical office features a patient chair, two white guest chairs, a desk with a computer monitor showing a calendar, and certificates displayed on the wall represent Cheap Invisalign, overbite treatment, teeth retainer replacement, clear braces available at Sweet Smiles Orthodontics in Arlington, MA.

Meet Your Sweet Smiles Orthodontics Expert in Arlington MA

Dr. Yajun Cui, DMD, PhD.

Dr. Yajun Cui offers expert orthodontic care at Sweet Smiles Orthodontics in Arlington and is top-rated orthodontist trusted by families in Arlington, MA. Committed to creating beautiful smiles, he offers personalized orthodontic treatment tailored to meet the unique needs of patients of all ages.
Excellence in Arlington Orthodontics

Traditional & Advanced Arlington Orthodontics: Dr. Yajun Cui, DMD, PhD

Dr. Yajun Cui, a highly educated and accomplished orthodontist with a diverse background in both dental and scientific research. His passion for helping patients achieve their ideal smiles led him back to dental school, where he graduated in the top 5 from Case Western Reserve University School of Dental Medicine.

Dr. Yajun Cui is here to help you get a healthy, beautiful smile with personalized care for kids, teens, and adults. His experience and dedication make your orthodontic journey comfortable and effective

Orthodontics Residency – Harvard School of Dental Medicine
D.M.D. – Case Western Reserve University (Top 5 of 68)
Ph.D. in Biochemistry & Molecular Biology – University of New Hampshire
Orthodontist & Owner – Sweet Smiles Orthodontics, Arlington, MA
Publications – Nature Medicine, Arthritis Rheum, and more
Awards – ICD Leadership Award, Omicron Kappa Upsilon, Young Investigator Award
Professional Affiliations – American Association of Orthodontists, American Dental Association
Languages – Fluent in English & Mandarin
Orthodontics Residency Program – Harvard School of Dental Medicine.
Doctor of Dental Medicine (D.M.D.) – Case Western Reserve University, graduated 5th in his class (out of 68) with a GPA of 3.66.
Ph.D. in Biochemistry and Molecular Biology – University of New Hampshire, Durham NH.
Leadership Award – International College of Dentists
Omicron Kappa Upsilon National Dental Honor Society
Young Investigator Award – American Society for Bone and Mineral Research
Arthur Theodore Lyman and Henry Sturgis Grew Memorial Scholarships – Harvard University
Bracket Systems: MBT (0.022); Roth (0.018)
Appliances: Nance, LLHA, TPA, TAD, Expander, Distal Jet, Pendex, Headgear, Twin Block, Herbst, Forsus
Aligners: Invisalign, Spark Aligners, and Angel Aligners
American Association of Orthodontists (AAO)
American Dental Association

Research Associate – Matt Warman Lab, Department of Genetics, Case Western Reserve University :

Created and characterized knock-in mouse that can conditionally express lubricin protein to investigate roles of lubricin protein in maintaining cartilage integrity in joints
Created and characterized conditional High-Bone-Mass knock-in mice to study functions of Lrp5 in bone to regulate bone mass
Lrp5 functions in bone to regulate bone mass – Nature Medicine
Lubricin Restoration in a Mouse Model of Congenital Deficiency – Arthritis Rheum
SPT5 affects the rate of mRNA degradation and physically interacts with CCR4 but does not control mRNA deadenylation – American Journal of Molecular Biology
Genome wide expression analysis of the CCR4-NOT complex indicates that it consists of three modules with the NOT module controlling SAGA -responsive genes, Molecular Genetics and Genomics
In Vivo Evidence that Defects in the Transcriptional Elongation Factors RPB2, TFIIS, and SPT5 Enhance Upstream Poly(A) Site Utilization – Molecular and Cellular Biology
Dr. Yajun Cui, DMD, PhD, orthodontist expert at Sweet Smiles Orthodontics in Arlington MA, smiling in blue scrubs with Harvard Orthodontics logo, standing confidently with arms crossed inside a modern dental clinic.
In Arlington, MA, a woman in glasses and blue lab coat at Sweet Smiles Orthodontics smiles holding a dental model.

Orthodontic Clinic

Our mission is to warmly welcome and care for everyone who visits our clinic. Our dedicated team is committed to delivering not only the smile you’ve always dreamed of but the best comfort and care.
A person in a lab coat at Sweet Smiles Orthodontics in Arlington, MA, shows how to brush braces using a toothbrush and dental model.

Get Started Today!

At Sweet Smiles Orthodontics Arlington – Braces & Invisalign, our team is committed to providing high-quality care for your unique smile. Request your free consult today!

What Our Customers Say

Displayed on a light background, five blue stars are evenly spaced in a horizontal row to represent Sweet Smiles Orthodontics in Arlington, MA.
Dr. Cui is professional! Super friendly and easy to deal with. My son had a more complicated treatment path which went so well.
Jennifer Geng
Displayed on a light background, five blue stars are evenly spaced in a horizontal row to represent Sweet Smiles Orthodontics in Arlington, MA.
My daughter just finished her ortho treatment with Dr. Cui. Dr. Cui is the BEST! Very professional and patient. We have loved our experience here! We appreciated the specialized care and friendly staff. Thank you!
Jeong Eun Park
Displayed on a light background, five blue stars are evenly spaced in a horizontal row to represent Sweet Smiles Orthodontics in Arlington, MA.
I just finished my braces process with Dr. Cui and I couldn’t be happier! He was very professional, caring, patient, and made every visit enjoyable.
Evelyn Yuliana Rubio Mejía
Displayed on a light background, five blue stars are evenly spaced in a horizontal row to represent Sweet Smiles Orthodontics in Arlington, MA.
Dr Cui. Is very professional, gracious, very responsive, kind, and respectful. My new smile looks wonderful! What a blessing and a gift! Thank you for your help and orthodontic expertise! The staff are also friendly, knowledgeable and helpful. I have already recommended him to friends! God bless you all.
Roz
Displayed on a light background, five blue stars are evenly spaced in a horizontal row to represent Sweet Smiles Orthodontics in Arlington, MA.
My daughter had a wonderful experience with her braces and loves the results she obtained. Dr. Cui is kind, attentive and great to work with. His staff is also friendly and professional. Highly recommended !!
M. Davenport