Complimentary consultations at both St. Louis locations
Orthodontic Specialists of St. LouisFree consultation
Creve CoeurSunset Hills
Dr. Lisa Seim and Dr. Robert Shapiro

St. Louis orthodontist

Dr. Lisa Seim, DDS, MS – Orthodontist in St. Louis

Lisa Seim, DDS, MS, St. Louis orthodontist

Lisa M. Seim, DDS, MS

Lisa Seim, DDS, MS

A St. Charles native and Saint Louis University-trained orthodontist, Dr. Lisa Seim brings modern expertise and an easy, encouraging manner to every visit.

Dr. Seim first became interested in orthodontics when braces transformed her own smile as a teenager. The confidence she gained made a lasting impression—and ultimately shaped the career she wanted to pursue.

She completed undergraduate study in nutrition and dietetics at Saint Louis University, earned her Doctor of Dental Surgery degree from the University of Missouri–Kansas City and returned to Saint Louis University for a Master of Science in Dentistry and Certificate in Orthodontics.

Dr. Seim loves getting to know the person behind each smile. Her approach combines careful clinical planning with clear communication, encouragement and treatment choices that make sense for a patient's age, goals and daily life.

Dr. Seim celebrating a patient's new smile.
Dr. Seim celebrating a patient's new smile.

Education and training

A specialist's
foundation.

  1. 01

    Bachelor of Science, Nutrition & Dietetics — Saint Louis University

  2. 02

    Doctor of Dental Surgery — University of Missouri–Kansas City

  3. 03

    Master of Science in Dentistry — Saint Louis University

  4. 04

    Certificate in Orthodontics — Saint Louis University

Treatment philosophy

Care that looks at
the whole picture.

Confidence at every age

Having experienced braces herself, Dr. Seim understands how orthodontic treatment can influence confidence. She enjoys helping kids, teens and adults see that transformation unfold.

Personalized modern care

Braces and Invisalign are tools within a larger plan. Dr. Seim considers the bite, growth, tooth movement, lifestyle and patient preferences before recommending treatment.

Communication that feels human

Patients and parents deserve to understand what is happening and why. Dr. Seim makes room for questions and keeps next steps clear throughout care.

Beyond the office

A few things patients
might not know.

Meet both OSSTL orthodontists
What does she enjoy outside the office?
Paddle boarding, hot yoga, travel and, above all, time with family.
What food could she happily eat again and again?
Mexican food—especially tacos.
If she could be any animal for a day?
One of her two very spoiled dogs.

Specialist-led care in St. Louis

Explore your treatment options.

BracesModern treatment for kids, teens and adults InvisalignClear aligners planned by an orthodontist Two locationsCreve Coeur and Sunset Hills

Your next chapter starts here

Ready to love your smile?

Tell us a little about what you're looking for. Your complimentary consultation is the first easy step toward a plan made for you.

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