Meet Us

Dr. MArk Moan DMD


Mark S. Moan D.M.D. graduated from Iowa State University in 1995 where he received his bachelors in Zoology, he was also a member of the men’s swim team and received All-American honors. He attended Southern Illinois University School of Dental Medicine and received his degree in 2000. Upon graduation, Dr. Moan joined Expressions Dental Group.

Dr. Moan enjoys spending time with his wife Stephanie and their furry children. He also has various hobbies that keep him busy in his free time.

Justin Fox DDS

Justin K. Fox DDS Graduated with a Bachelor’s of Science in Biology/Pre-Dental at the University of Missouri Saint Louis in 2014. He received his Doctorate of Dental Surgery at the University of Missouri Kansas City School of Dentistry in 2018, receiving Honors in Oral Surgery and Advanced Restorative Studies.

Dr. Fox was selected to receive the Senior Dental Student Award for Achievement and Excellence from the American Academy of Orofacial Pain, along with special recognition from the Student National Dental Association for his volunteer work in teaching younger dental students while working on his degree. Upon graduation, Dr. Fox obtained the role of Managing Clinical Director in a large corporate dental office before entering private practice.

Dr. Fox is a member of the American Dental Association, the Missouri Dental Association, and the Greater St. Louis Dental Society.

In his free time, Dr. Fox enjoys staying active with his hobbies including exercise, pickle ball, disc golf, snowboarding, and fishing.



Our team at Expressions Dental cares about you the patient, and in many ways is more important to you than your dentist. Your oral health and comfort are of the utmost importance to all of us. We all work hard to help you with all your dental needs. As many patients can attest to you will become a friend at our office and you will always see that familiar face on our team. 


We are currently accepting new patients and would love to help you take your smile to the next level, please complete our Contact Form to request an appointment.

Expressions Dental Group

1032 Rondale Court
O'Fallon, MO 63368
Fax: 636-980-9649

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