314-533-3440 | 1-800-325-8921

9781 Green Park Industrial Dr. | P.O. Box 4358 | St. Louis, MO 63123


Dentist Trusted Orthodontic Laboratory

At OAL, we offer a comprehensive range of orthodontic laboratory services designed to meet the exacting standards of dental practices. From oral appliance therapy to custom orthodontic devices, each appliance is meticulously crafted by our team of experts.

Since its foundation in 1933, Ohlendorf Appliance Laboratory (OAL) has remained at the forefront of the dental industry, earning the trust of countless professionals with our commitment to quality and excellence. As a third-generation, family-owned business, we understand the nuances that ensure successful case outcomes and the importance of fostering lasting partnerships in the dental community.

Orthodontic Appliance Solutions We Offer:

Oral Appliance Therapy

Our oral appliance therapy at Ohlendorf Appliance Laboratory is meticulously designed to cater to the unique needs of each individual. With a focus on precision and quality, our expert team crafts custom solutions that ensure optimal comfort and effectiveness for patients. From diagnosis to treatment, we are dedicated to providing advanced oral appliance therapy that enhances patient care and promotes overall oral health.

What Makes Ohlendorf Unique:
  • Individually Fabricated Dental Appliances: Custom cases perfected for every individual need.
  • Orthodontic Appliances: A wide inventory of high-quality orthodontic appliances to support your practice.
  • Case Consultation & Support: Our experts work closely with you to provide tailored treatment solutions and insights into complex cases.
  • Advanced Technology Integration: Leveraging cutting-edge orthodontic lab technology in our for precision and efficiency in every product.

Send Us A Case / RX & Mailing Labels

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Rx & Mailing Labels

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Our Promise to You

Kevin Ohlendorf, our current CEO, and a powerful driving force of tradition, upholds the values of expert service and attentiveness to detail. This pledge translates into orthodontic lab services that you can rely on – characterized by accuracy, reliability, and timeliness. Trust us to deliver exactly as prescribed, with each case arriving on time to keep your treatments on schedule.

Why Choose Our Orthodontic Lab?

Whether you're looking for superior cases or seeking a trusted partner for advanced oral appliance therapy, Ohlendorf Appliance Laboratory is here to serve you with distinction. We have been providing dependable orthodontic appliances to clients for over 9 decades and pride ourselves on our lasting relationships and notable customer service.

To discover the difference that our expertise can make, contact us today and allow us to contribute to your next case's success.


Dr. Ben Miraglia

I have been using Ohlendorf Appliance Laboratory to fabricate fixed and removable appliances for children and adults for fifteen years. The accuracy, craftsmanship and attention to detail are exceptional. Both fixed and removable appliances are delivered with ease and without adjustment.
The customer service is just as amazing as the appliances. I will happily use Ohlendorf Appliance Laboratory for the rest of my career.

Dr. Ben Miraglia

Dr. Lawrence Spahl

After having been an orthodontic functional appliance design consultant for the members of the Ohlendorf team for over 30 years, I can heartily attest that there is no laboratory in the country that projects a higher level of skill, knowledge and personal service as the great and historic Ohlendorf Appliance Lab of St. Louis, Missouri.

The members of the extensive Ohlendorf team possess a most impressive and veteran background of knowledge and experience of all types and techniques of orthodontics and appliance therapy, both fixed and removable. The extent of their knowledge of both the diagnosis and treatment of any type of malocclusion never ceases to amaze me. They listen to every orthodontic speaker, read every orthodontic text book, and see the work that comes into their laboratories from orthodontists, TMJ experts (their splints are fabulous), as well as the orthodontic work of general practitioners from all over the country. As a result, they have an unfathomably vast experience in knowing what works and what doesn’t work! They will do anything to help you on difficult cases, (even to the point of telling you that your might be making a mistake if you actually are).

They want you to do well, so that in turn they can do well. They have diagnostic experts with 80 years of experience “in the trenches”. They deserve to be highly respected as the “go to” laboratory for anyone involved in orthodontics and/or “TMJ” endeavors. They have what it takes to be a leader in this field. Quite frankly, they are among the most sincere, friendly, knowledgeable, and “stand up” people I know in this business. They earn the highest “Marks,” (and Kevin and Al are no “slouches” either)! I am more than pleased to give them my highest recommendation!

Terrance J. Spahl DDS

Orthodontic Appliances

From our clear solutions (invisible trays) to our habit correction appliances and retainers, our orthodontic laboratory has the solutions your dental practice needs to continue to stay on top. We also offer arch development appliances both fixed and removable, and always continue to support our dentists after purchase to maintain a long-lasting relationship with the best customer support in the industry.

When you choose to order from Ohlendorf Appliance Laboratory, you get more than just the best orthodontic supplies available, you also get a partner you can count on. Contact us today to learn more about our orthodontic appliances and see how a partnership with us can benefit your practice.