meet your

Doctors of the Bankhead and Firth team

Premier Orthodontist in the St. Louis area

With three orthodontic specialists and five convenient locations, we are family-owned, family-focused, and dedicated to bringing personalized smile transformation for children and adults in Oakville, Sunset Hills, Eureka, Waterloo, and Columbia.

“I highly recommend the team at Bankhead & Firth Orthodontics! Everyone is so kind and helpful. Dr. Firth and Dr. Kaiser provided great care and communication throughout all stages of my treatment plan.”

Thomas K.

John R. Firth

Board Certified OrthodontistPresident, Missouri Society of OrthodonticsAdjunct Professor of Clinical Orthodontics at Saint Louis University

Dr. John Firth smiling


After earning his undergraduate degree at Brigham Young University, Dr. John Firth went on to complete his Doctor of Dental Surgery degree at Creighton University School of Dentistry in Omaha, Nebraska.

Specialty Training

Dr. Firth pursued specialization in Orthodontics with a master’s degree in Dentistry for Orthodontics from one of the finest orthodontic programs in the U.S. at Saint Louis University School of Orthodontics.

Leader and Teacher

He currently serves as President for the Missouri Society of Orthodontics. Dr. Firth also takes time to pass on the expertise he has developed over the years by serving as an Adjunct Clinical Professor of Clinical Orthodontics at Saint Louis University.


Dr. Firth is an active member of the Greater St. Louis Dental Society, the American Dental Association, the American Association of Orthodontics, and the World Federation of Orthodontics.

Home Life

After growing up on a farm in Utah, he still loves the outdoors and is an avid pheasant hunter. He and his wife have four kids and three grandkids. His hobbies include a love of the Blues, his boat, and wakeboarding.

Dr. Justin Firth smiling

Kevin C. Kaiser

Board Certified Orthodontist

Background and Education

As a St. Louis native, Dr. Kevin C. Kaiser, D.D.S., M.S. grew up in Sunset Hills and attended Lindbergh High School. He went on to graduate with University Honors from the University of Missouri - Columbia (Mizzou) with a Bachelor of Science degree in Biology.

Top of Dental Class

In dental school, he excelled at University of Missouri - Kansas City School of Dentistry, graduating Magna Cum Laude with a Doctor of Dental Surgery (D.D.S) degree. He was also the winner of the coveted American Dental Association Student Ethics competition and received the Humanitarian Award from the International College of Dentists for exemplifying and demonstrating passion for altruistic humanitarian service. He received the Outstanding Dental Student in Implant Dentistry Award from the Academy of Osseointegration for his research on implants while in dental school. Dr. Kaiser was inducted into the honors fraternity Omicron Kappa Upsilon for being in the top of his dental class.

Advanced Specialization and Research

For his residency, Dr. Kaiser completed his Orthodontic Specialty training certificate through the University of Missouri - Kansas City Orthodontics and Dentofacial Orthopedics program. He also earned a Master of Science degree in Oral and Craniofacial Sciences for his novel research on the nasal septum’s role in human craniofacial development.

Memberships and Leadership

Dr. Kaiser is active with the Greater St. Louis Dental Society, the American Dental Association, and the American Association of Orthodontists. Known as a respected researcher and upcoming leader in the Orthodontic community, He also presented research study results at the AAO Annual Session (National Orthodontic conference) and has been named the 2024 Chair for the Council of Scientific Sessions.

Home Life

He and his wife Megan love spending time with their two children, Clark and Adeline. He also enjoys Peloton, outdoor bike riding, and cheering on the Blues.

Justin M. Firth

Board Certified Orthodontist

Dr. Kevin Kaiser smiling

Top of Dental Class

Dr. Justin M. Firth graduated summa cum laude and at the top of his dental class, earning his Doctor of Dental Medicine degree from Midwestern University in Glendale, AZ.

Residency and Certification

During his residency, Dr. Justin also completed both his Master of Science in Dentistry and a Certificate in Orthodontics and Dentofacial Orthopedics from Saint Louis University. He is a Board-Certified Orthodontist by the American Board of Orthodontics.

Home Life

He enjoys discovering the best restaurants and food in St. Louis's amazing food scene, spending time with his Golden Retriever (Phoenix), cheering on the Cardinals and Blues, and spending time on the lake during the summer.