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Orthodontic Specialists of Oklahoma is a multi-location practice offering comprehensive orthodontic treatments including traditional braces, clear braces, Invisalign, and Invisalign Teen for patients of all ages.

About Orthodontic Specialists of Oklahoma
Treatment plans other providers turned down are taken on here, including a full course from braces through jaw surgery under Dr. Dan Kratzer's team.
Reviews describe an office that regularly takes on complicated or previously mismanaged cases, from thumb-sucking corrections to full braces-through-jaw-surgery treatment, and doctors are noted for sitting down together to plan the trickier ones. Families with multiple kids in treatment mention staff who greet patients by name and speak directly to children rather than only parents, and same-day repairs for broken brackets or wires come up often. Cost and payment plans are mentioned as reasonable, with several noting the practice beat quotes from other providers.
Summary of 200 patient reviews, February 2020–August 2026, updated September 2026
Orthodontic Specialists of Oklahoma is a multi-location practice offering comprehensive orthodontic treatments including traditional braces, clear braces, Invisalign, and Invisalign Teen for patients of all ages.
Board-certified orthodontists with over 50 years of combined experience have transformed over 11,000 smiles since 1983. The practice specializes in early orthodontic treatment, surgical orthodontics, and accelerated treatment options.
Treatments offered
Who They Treat
Orthodontic Specialists of Oklahoma provides orthodontic treatment for the following age groups:
Orthodontists at this office
Dr. Onur Kadioglu
NPI verified · no bio or photo on file
Dr. Dan Kratzer
NPI verified · no bio or photo on file
Dr. Alejandro Romero
NPI verified · no bio or photo on file
-- STEVEN M. RANEY --, DDS MS
NPI verified · no bio or photo on file
Dr. Ece Agirgol
NPI verified · no bio or photo on file
Dr. Michael Behrmann, D.D.S.
NPI verified · no bio or photo on file
Insurance accepted
3 plans listedWhat patients say
Latest review 7 weeks ago
What patients praise
Things to know
Who it suits
Doctors patients mention
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| Apr 2024 | 4 |
| May 2024 | 7 |
| Jun 2024 | 35 |
| Jul 2024 | 7 |
| Aug 2024 | 2 |
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| Jun 2025 | 17 |
| Jul 2025 | 1 |
| Aug 2025 | 6 |
| Sep 2025 | 1 |
| Oct 2025 | 5 |
| Nov 2025 | 2 |
| Dec 2025 | 1 |
| Jan 2026 | 2 |
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| Apr 2026 | 2 |
| May 2026 | 3 |
| Jun 2026 | 1 |
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| Aug 2026 | 1 |
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| Theme | Praise | Criticism |
|---|---|---|
| Friendly staff | 122 | 3 |
| Treatment results | 35 | 0 |
| Great with kids | 33 | 1 |
| Scheduling & wait times | 23 | 4 |
| Clear explanations | 24 | 2 |
| Gentle, comfortable care | 21 | 1 |
| The orthodontist | 18 | 1 |
| Cost, insurance & financing | 14 | 2 |
Recent reviews from Google
⭐⭐⭐⭐⭐ I had a great experience with Madison at my orthodontics office. She helped me over the phone with understanding and communicating my payment plan, and she made the whole process simple and stress-free. She was very patient, professional, and treated me like a valued customer. I really appreciate her taking the time to help me and make sure everything was clear. Madison provided excellent customer service, and I truly appreciate her help! i’ll
Jerrica helped me when I needed it most. She remained calm, professional, and made the entire process easy to understand. She took the time to explain exactly what needed to be done and provided excellent customer service. Her patience and professionalism truly made a difference, and she deserves recognition for her outstanding work
Great practice, everyone is very friendly and we’ve had great results. They even contacted me a few days early and offered to move our appointment up to take advantage of a promotion they were running that current month. Our appointment was the first of the next month and we would have missed a great savings opportunity! Love this place!
My entire visa-line experience has been fantastic! I can’t thank OSO enough! Seem-less process, zero complaints, and the entire staff make you feel very comfortable and appreciated as a customer.
My son plays sports almost year-round, so I worried braces would constantly become a problem. Thankfully this office has handled every issue quickly and professionally. He broke a bracket during basketball practice and we expected to wait forever for repairs, but they managed to squeeze him in the next morning before school started. The orthodontist explained how to better protect his braces during games without making him feel guilty about the accident. The staff also does a great job speaking directly to younger patients instead of ignoring them and only talking to parents. His teeth have improved dramatically over the last year and he smiles much more confidently now than before treatment. Even his coach recently commented on how different his smile looks compared to last season’s team photos.
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