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Located inside the St. Luke’s building near the local urgent care facility.

Located inside the St. Luke’s building near the urgent care facility.

Dr. Maryann L. Udy, board-certified oral surgeon at Northwest Oral Surgeons in O'Fallon, MO

Meet Maryann L. Udy, DMD

Maryann L. Udy, DMD, is a board-certified oral and maxillofacial surgeon and the owner of Northwest Oral Surgeons. She has cared for patients in the O’Fallon community since joining the practice in 2013.

Dr. Udy provides surgical care for dental implants, wisdom teeth, impacted canines, bone grafting, jaw conditions, facial injuries, and preparation for restorative treatment. She works closely with patients, families, dentists, and orthodontists so each person understands the findings and the next step.

Education and Surgical Training

Originally from St. George, Utah, Dr. Udy completed undergraduate studies at Dixie State College of Utah and the University of Nevada, Las Vegas, with an emphasis in pre-dental studies.
She earned her Doctor of Dental Medicine degree from the University of Nevada, Las Vegas School of Dental Medicine, graduating summa cum laude. Her training continued with a one-year oral surgery internship at the VA Hospital in Long Beach, California, where she worked with veterans.
Dr. Udy then completed formal residency training in oral and maxillofacial surgery at Yale New Haven Hospital in New Haven, Connecticut.

Oral and Maxillofacial Surgery in O’Fallon

After residency, Dr. Udy joined Northwest Oral Surgeons in July 2013. She later became the owner of the long-standing practice and continues to care for patients from its O’Fallon office.
Patients see a familiar surgeon and work with a team that has served local families and referring offices for many years. That continuity makes it easier to ask questions, prepare for treatment, and know whom to call during recovery.

Credentials and Professional Memberships

  • Board Certified, American Board of Oral and Maxillofacial Surgery
  • Member, American Dental Association
  • Member, Missouri Dental Association
  • Member, Missouri Society of Oral and Maxillofacial Surgery
  • Member, St. Louis Society of Oral and Maxillofacial Surgery
  • Fellow/Member, American Association of Oral and Maxillofacial Surgeons

Technology-Supported Surgical Planning

Dr. Udy uses CBCT imaging, panoramic X-rays, digital intraoral scanning, and photogrammetry when those tools provide useful information for diagnosis, implant planning, guided treatment, or coordination with a restorative dentist. Together, these records help her evaluate the anatomy and explain the treatment plan more clearly.

Frequently Asked Questions About Dr. Udy

An oral and maxillofacial surgeon completes hospital-based surgical and anesthesia training after dental school. The specialty includes procedures involving the teeth, jaws, mouth, and facial structures.
Yes. Dr. Udy is board certified by the American Board of Oral and Maxillofacial Surgery.
Dr. Udy joined the practice in July 2013 and later became its owner.

Schedule a Consultation With Dr. Udy

Call Northwest Oral Surgeons at 636-978-6967 to discuss a referral or schedule an evaluation with Dr. Udy.
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Nicholas
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Dr Udy and team were professional from the moment I walked into the office. I was greeted right away, waited hardly no time at all and was in and out. Everyone was great!!
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Ailsa
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Fast and easy, and they make you comfortable with the procedure.
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Sarah
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I'm not going to lie, I had my wisdom teeth removed today and I don't remember much (which I'm honestly totally okay with!). The few moments of lucidity I did have however were filled with the nicest staff members and they were especially kind to me when I got nauseous and threw up. From the front desk staff to all of the assistants/nurses and Dr. Udy herself, I felt very cared for and would highly recommend them all to anyone! I'm a naturally anxious person and they made the experience honestly quite enjoyable. Thank you to all of the staff who helped me today! :)
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Maureen
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Very friendly, professional staff-easy in and easy out. No waiting. Highly recommend!
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Kristina
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We were in and out within 30 minutes. The staff was so great with my 9 year old. Definitely recommend!
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Linda
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Very professional, knowledgeable and friendly.