Your Clear, Confident Smile Starts Here

At McDermott Orthodontics, exceptional orthodontic care goes beyond the teeth—it's about fostering lasting relationships and ensuring you feel supported and confident throughout your journey to a perfect smile.

With offices in Arnold and Florissant, we put your interests first, every day.

Elite Expertise in Orthodontics

Dr. Richard McDermott combines a deep passion for orthodontics with extensive training. After earning a DDS with honors from the University of Southern California, he completed a challenging three-year orthodontics residency at the same institution, focusing on the latest dental and facial techniques.

Dr. McDermott is recognized as an Elite Invisalign Provider, a distinction that highlights his high level of experience with this modern treatment method. This title is given only to those who demonstrate an advanced ability to treat complex orthodontic cases with Invisalign, ensuring superior care and outcomes for his patients.

His treatment philosophy is straightforward and patient-focused. He uses his expertise to tailor treatments to each patient’s unique needs, combining effective techniques with the latest technology to achieve the best possible results. His commitment to quality and attention to detail are evident in every smile transformation he oversees.

Orthodontics Florissant

Dedicated Personal Care

We see our patients as family at McDermott Orthodontics. Dr. McDermott personally crafts each treatment plan, from traditional braces to innovative Invisalign solutions.

Our open-door policy means you can directly connect with him anytime, reinforcing our commitment to your care and comfort.


State-of-the-Art Comfort

Forget about outdated painful procedures. At McDermott Orthodontics, we use cutting-edge materials that adjust teeth gently and efficiently, minimizing discomfort and reducing overall treatment time.

Your comfort is our priority, and that’s why we only use the leading advancements in orthodontic technology.


Flexible Financing for Families

Your financial concerns shouldn’t stand in the way of a beautiful smile. McDermott Orthodontics supports your budget with versatile payment options, including no-interest in-house financing and comprehensive insurance collaborations.

Our financial team works tirelessly to provide manageable solutions tailored to your needs.

Comprehensive Orthodontic Care

From your first consultation to the exciting day your braces come off, experience meticulous, compassionate orthodontic care at McDermott Orthodontics.

Our practice is equipped with the latest in dental technology, ensuring every aspect of your treatment is as comfortable as it is effective.


Convenient & Accessible

With locations in both Arnold and Florissant, extended office hours, and a commitment to accommodating your schedule, getting top-quality orthodontic care has never been easier.

We respect your time and aim to make your visits as convenient as possible, supporting a seamless treatment experience.


A Team You Can Trust

At McDermott Orthodontics, we pride ourselves on the depth of experience and quality of care our team offers. With over 250 years of cumulative experience, our skilled professionals are equipped to handle any orthodontic challenge with precision and empathy.

Each team member is committed to creating a supportive and warm environment where every patient feels valued and understood.

Our team’s expertise is not just in delivering excellent orthodontic care but also in building relationships that encourage and uplift our patients throughout their smile journey.

Exceptionally Friendly Staff!

Really clean and cute office with exceptionally friendly staff! My 9 year old and I both felt welcomed and informed by the ladies as well as Dr. McDermott. My son will be the proud owner of braces this fall!

- Becki

Same-Day Start on Smile Transformations

Why wait to start improving your smile? At McDermott Orthodontics, you can begin your treatment the same day as your consultation.

We value your time and enthusiasm, and we’re looking forward to getting to know you! Call today at (636) 296-6332 in Arnold or (314) 831-9399 in Florissant, and let’s see what your smile can do!