Your orthodontist in Cologne: Dr. Steinmaier & Kollegen
As your orthodontists in Cologne and highly experienced specialists in aligners / Invisalign, TMD, braces, and mandibular advancement devices, we warmly welcome you to our practice! Our Cologne orthodontic practice offers tailored orthodontic solutions for children, adolescents, and adults!
















Our services
Your orthodontic practice in Cologne – find all our treatment areas at a glance.

Aligners / Invisalign
Discover aligners like Invisalign in Cologne, the discreet solution for straight teeth without visible braces from your orthodontist in Cologne. Transparent pricing upfront: all Invisalign costs at a glance.
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TMD pain therapy
Learn more about temporomandibular disorder (TMD) – diagnosis, causes and our modern treatment approaches.
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Snoring / sleep apnea
Improve your quality of life – discover our effective solutions for snoring and sleep apnea such as the mandibular advancement device.
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Sports mouthguard / tooth protection
Learn why an athletic mouthguard is strongly recommended for many sports and how it can help prevent injuries to the mouth and teeth.
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Removable appliance
Discover treatment with removable appliances such as the Bionator– the practical and flexible solution for effective tooth correction.
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Fixed Braces
Learn more about fixed braces, the proven solution for precise and effective tooth correction at your orthodontic practice in Cologne.
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Retention / retainer
Secure your treatment results with retention and retainers – learn more about this important phase after orthodontic correction.
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Laboratory
Our in-house master dental laboratory in Köln-Rodenkirchen fabricates 99.9% of all orthodontic appliances and aligners on site.
Learn more →Orthodontic practice in Cologne
JUST KFO – Dr. Steinmaier & Kollegen is your orthodontic practice for modern orthodontics in Cologne. We correct misaligned teeth and jaws in children and adolescents as well as adults – with state-of-the-art technology and individually tailored treatment methods.
Whether you have statutory health insurance or private health insurance: diagnostics, consultation, and care are the same for all patients at our practice. We will explain in writing which costs your insurance covers before treatment begins. You can pay for private services in interest-free installments for up to 18 months. Learn more on our Costs and Insurance.
Whether aligners, fixed, ceramic or removable appliances, mandibular advancement devices for sleep apnea, athletic mouthguards, retention or TMD pain therapy – our digital diagnostics with intraoral scanner and 3D planning work precisely and entirely without impressions.
Another distinctive feature: in our in-house master dental laboratory in Köln-Rodenkirchen, we fabricate 99.9% of all orthodontic appliances and aligners directly on site – quickly, to a high standard and individually.
Benefit from our scientifically grounded expertise, personal care and uncompromising quality – for your best smile.
JUST KFO – your orthodontist in Cologne.
Suspect TMD? Take the self-test
Whether your own symptoms fit a temporomandibular disorder (TMD) can be assessed in just a few minutes: our TMD self-test asks about the most important symptoms and gives an initial impression – free, anonymous and without registration. It does not replace an examination, but it can help you decide whether further evaluation makes sense.
Our Practice
Your orthodontists in Cologne.


Our practice rooms are located at Hauptstraße 50 in 50996 Rodenkirchen Köln. As we have grown steadily since 1991 , a single building was no longer enough.
To reach our courtyard, you pass a barrier gate, where free parking spaces are also available to you during your appointment. From there you can go directly to the rear part of our orthodontic practice.
At the front, right on the street and hard to miss, you will find the front part of the practice of your orthodontist in Cologne as well as our in-house laboratory with an integrated 3D printing room.
We look forward to seeing you!
Your orthodontic practice in Cologne-Rodenkirchen.
More about our practice – orthodontist in Cologne-Rodenkirchen
We share our knowledge
15 peer-reviewed articles in orthodontic journals, a textbook chapter, and contributions to a standard reference work on aligner treatment – plus lectures and continuing education courses for professional colleagues.
What this means for you: You will be treated by a team that helps shape the field – and knows new techniques from firsthand experience.
A look inside our practice
Our team, our technology and news from Cologne – follow along on Instagram.

July 30, 2026
Wir vergeben eine Stelle für eine/n Weiterbildungsassistenten/in Hast du Lust auf moderne digitale Kieferorthopädie, …

July 10, 2026
Unser Sommerfest ️️️ Letzte Woche Freitag ging es zum Minigolf am Haus Berger ️ danach zum Dinner zu Luis Dias Ohne v…

June 24, 2026
Außentemperaturen von 38 Grad und mehr? In unseren klimatisierten Räumlichkeiten kommen wir nicht so schnell ins Schw…

June 13, 2026
Im Zuge unseres Umbaus wurde auch ein komplett neuer, klimatisierter Mitarbeiter- und Seminarbereich geschaffen. Ein …

June 3, 2026
Komplimente Diese Woche war kurz und knackig und reich an Komplimenten „Was aus dieser Praxis geworden ist, ist wirkl…

May 15, 2026
Heute am Brückentag bleibt die Praxis geschlossen. Wir wünschen allen PatientInnen ein tolles (langes) Wochenende! ️ …

April 15, 2026
I mean… ️ Es ist Frühling! Die schönste Zeit in unserer Praxis

March 19, 2026
JUST in case you didn‘t know ️ JUST KFO

February 12, 2026
Diese Woche hat mich eine besondere Auszeichnung erreicht! Das Focus Siegel für als empfohlene Kieferorthopädin in de…
What our patients say
We show a selection of Google reviews here. They are taken unchanged from our Google Business Profile; we do not carry out our own authenticity check. The experiences described are individual cases; the course and outcome of a treatment vary from person to person.
News
Your orthodontist in Cologne-Rodenkirchen – the latest from our practice.
June 24, 2026Comfortably Cool Through the Summer — Most of Our Practice Is Air-ConditionedEven on hot summer days, it stays comfortable at JUST KFO in Cologne: Most of our orthodontic practice is air-conditioned — for…Read more →
May 20, 2026JUST KFO Implements AI-Supported Documentation in PracticeJUST KFO integrates AI-supported documentation from Nelly into everyday practice to make workflows more efficient and create more time for personal patient…Read more →
January 29, 2026Practice Renovation Completed – Over 500 m² for Modern Orthodontics at JUST KFOPractice renovation at JUST KFO – Dr. Steinmaier & Kollegen is complete. Over 500 m², modern structures, digital workflows, in-house laboratory, and…Read more →
December 18, 2025Merry Christmas from JUST KFO 🎄An eventful year lies behind us – and for that we would like to say thank you above all: Thank you for…Read more →
November 27, 2025DMD User Workshop 2026 – Digital TMD Diagnostics TrainingThe DMD User Workshop 2026 offers a compact, practice-oriented introduction to digital TMD and functional diagnostics. Led by Dr. Julia Steinmaier and…Read more →
September 27, 2025New at JUST KFO: Luna – Our Digital Phone SupportNow at JUST KFO: Luna supports our team with calls – even after hours or when our reception is busy. Learn more…Read more → How to find us on the map
Your orthodontist in Cologne!
Schedule your no-obligation initial consultation at JUST KFO – Dr. Steinmaier & Kollegen in Cologne.
Frequently Asked Questions for Your Orthodontist in Cologne
What does braces cost – and what does health insurance cover?
As a private service, fixed braces typically cost approx. 3,000 to 8,000 euros, and aligner treatment approx. 2,500 to 8,500 euros. For children and adolescents with KIG 3 to 5, statutory health insurance covers standard care. You can pay for private services in interest-free installments for up to 18 months at our practice. Learn more on our Costs and Insurance.
At what age should my child see an orthodontist?
An initial checkup usually makes sense at age 6 to 9 – even if no treatment is needed yet. This allows the right timing to be planned calmly. Learn more in our article When to See an Orthodontist?
Are braces still worthwhile for adults?
Yes. Orthodontic treatment is possible at any age, as long as teeth and periodontal tissues are healthy. Many adults choose nearly invisible aligners. Learn more on our Orthodontics for Adults.
How long does treatment with braces take?
That depends on the findings. Fixed braces are worn for an average of just under two years. With aligners, the duration also depends on the extent of the correction – we will give you a reliable estimate after the examination. Afterward, a retainer secures the result. Learn more in our article How Long Do You Wear Braces?
Does an orthodontist help with jaw joint pain?
Often yes. Issues with the temporomandibular joint and masticatory muscles (TMD) are among our core areas: we examine the bite and jaw joint and usually start treatment with a custom-fitted splint. Our free TMD self-test provides an initial assessment; learn more about TMD pain therapy.
What should I do if a wire or bracket comes loose?
Usually this is not an emergency. A poking wire end can be temporarily covered with protective wax; if a bracket comes loose, call us in the next few days. What helps in which situation is explained in our First Aid for Braces.
Do I need a referral – and how do I get an appointment?
You do not need a referral – in Germany, you have free choice of doctor. You can book your appointment around the clock online or by phone at 0221 – 93 53 02 0.
