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Orthodontic Specialists of Oklahoma provides orthodontic care in Norman, OK, serving children, teens, and adults across the region.

About Orthodontic Specialists of Oklahoma
Special accommodations for autistic and sensory-sensitive children, plus early treatment for younger kids, are a recurring focus at this Norman practice.
Reviews at Orthodontic Specialists of Oklahoma point to a team that goes beyond the basics with kids, from special accommodations for children with autism to keeping siblings comfortable through multi-year braces treatment. Early treatment for younger children comes up notably more than typical, alongside long-standing praise for how the office handles nervous first-timers. Some reviews mention scheduling delays and billing or insurance confusion, though many describe flexible rebooking and payment help when issues arise.
Summary of 200 patient reviews, May 2024–August 2026, updated September 2026
Orthodontic Specialists of Oklahoma provides orthodontic care in Norman, OK, serving children, teens, and adults across the region.
Established in 1983, the practice is led by board-certified orthodontists Dr. Onur Kadioglu, Dr. Michael Behrmann, Dr. Dan Kratzer, Dr. Alejandro Romero, and Dr. Ece Agirgol, all members of the American Association of Orthodontists and certified by the American Board of Orthodontics. Treatment options include Invisalign clear aligners, self-ligating braces, early interceptive treatment for younger patients, and surgical orthodontics for complex cases requiring coordinated care. The practice holds Invisalign Preferred Provider status and uses digital tools to support treatment planning and progress tracking. With six locations, Orthodontic Specialists of Oklahoma offers flexibility for families and working patients. Weekend hours and online booking are available to accommodate varying schedules. The practice provides free initial consultations to evaluate individual orthodontic needs and discuss treatment recommendations. Insurance claims are filed on behalf of patients, and flexible payment plans are available to help manage treatment costs. The practice accepts multiple insurance plans, though specific carriers vary by individual policy. Orthodontic Specialists of Oklahoma serves patients throughout the Norman area and surrounding communities in central Oklahoma. Treatment plans are tailored to each patient's clinical needs and personal goals following a comprehensive examination.
Treatments offered
Who They Treat
Orthodontic Specialists of Oklahoma provides orthodontic treatment for the following age groups:
Orthodontists at this office
Dr. Onur Kadioglu, DDS, MS.
NPI verified · no bio or photo on file
Dr. Michael Colt Behrmann
NPI verified · no bio or photo on file
Dr. Alejandro Romero
NPI verified · no bio or photo on file
Dr. Ece Agirgol
NPI verified · no bio or photo on file
Dr. Dan Kratzer
NPI verified · no bio or photo on file
Bruce Reeder
NPI verified · no bio or photo on file
Alejandro Romero-Delmastro
NPI verified · no bio or photo on file
Chih Yen Liu
NPI verified · no bio or photo on file
Insurance accepted
7 plans listedWhat patients say
Latest review 7 weeks ago
What patients praise
Things to know
Who it suits
Doctors patients mention
| Oct 2023 | 0 |
|---|---|
| Nov 2023 | 1 |
| Dec 2023 | 0 |
| Jan 2024 | 0 |
| Feb 2024 | 0 |
| Mar 2024 | 1 |
| Apr 2024 | 4 |
| May 2024 | 79 |
| Jun 2024 | 13 |
| Jul 2024 | 10 |
| Aug 2024 | 9 |
| Sep 2024 | 8 |
| Oct 2024 | 3 |
| Nov 2024 | 3 |
| Dec 2024 | 3 |
| Jan 2025 | 0 |
| Feb 2025 | 4 |
| Mar 2025 | 3 |
| Apr 2025 | 3 |
| May 2025 | 1 |
| Jun 2025 | 50 |
| Jul 2025 | 36 |
| Aug 2025 | 34 |
| Sep 2025 | 56 |
| Oct 2025 | 20 |
| Nov 2025 | 4 |
| Dec 2025 | 0 |
| Jan 2026 | 1 |
| Feb 2026 | 2 |
| Mar 2026 | 1 |
| Apr 2026 | 2 |
| May 2026 | 4 |
| Jun 2026 | 2 |
| Jul 2026 | 2 |
| Aug 2026 | 3 |
| Sep 2026 | 1 |
| Theme | Praise | Criticism |
|---|---|---|
| Friendly staff | 155 | 4 |
| Great with kids | 46 | 0 |
| Clear explanations | 26 | 3 |
| Scheduling & wait times | 14 | 6 |
| Gentle, comfortable care | 17 | 0 |
| The orthodontist | 16 | 0 |
| Treatment results | 13 | 0 |
| Office & technology | 13 | 0 |
Recent reviews from Google
Do not recommend. They treat people with private insurance horrible. Very caddy and immature young girls. Do better!
We Love OSO. All three of my kids are currently receiving treatment here. The facility is clean, the staff is always super friendly and informative.
Orthodontic Specialists of Oklahoma goes above and beyond to not only ensure you are getting the proper treatment , but they want to make sure you have all financial resources available to you too. The staff is genuinely caring and supportive and provides the same high level of care and attentiveness at each and every appointment. 😁🦷🪥
My daughter has been coming here for braces for almost a year now and the confidence difference has honestly been incredible to watch. Before treatment, she avoided smiling in photos because she hated the gaps between her teeth. The staff here has been consistently patient and kind during every appointment, especially during the first few visits when she was nervous about pain. One afternoon the office got extremely crowded and appointments started running behind, but the front desk communicated clearly instead of pretending nothing was happening. That level of respect really matters to parents. Her teeth already look so much straighter and she recently smiled openly in a family picture for the first time in years. Seeing that change alone made the entire process feel worthwhile for us.
Had my Invisalign done yesterday and I seriously cannot say enough good things about Amy. From start to finish she was so friendly, patient and made the entire process feel easy and not overwhelming at all. She explained everything so clearly, gave me so many helpful tips and genuinely took her time with me, you can tell she truly cares about her patients. Her energy was so comforting and positive, which made a huge difference. Absolute top tier experience. Amy is AMAZING and I’m so thankful for all her hard work 🤍✨
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