Dr. Quigless & Dr. Keglar Caring For Patients Since 1995


headshot of doctor Dr. Quigless:

Meet Dr. Q in person. If you are in the Belleville, Brentwood, or Saint Louis area, call our office or email us today to schedule your free initial consultation, and get to know Dr. Q and his team.

Dr. Q was born and raised in St. Louis, MO. He was exposed to dentistry at an early age because his father, Dr. Charles R. Quigless, was also a dentist. After graduating from the St. Louis University High School in 1984, he attended Tulane University in New Orleans. Between 1984 and 1988 he obtained a B.S. in Mathematics and completed the pre-dental curriculum.

From 1989 through 1990, he worked as a Systems Analyst at South Western Bell Telephone company. In the following year, through 1991, he was a mathematics instructor at Harris Stowe University in St. Louis.

Dental School

Between 1991 and 1995, Dr. Q attended the University of Tennessee College of Dentistry, where he obtained a Doctor of Dental Surgery degree (D.D.S.). For each of those four years, he had a scholarship.

Dental Practice

Dr. Q opened his dental office in 1996 in Belleville, Illinois. In the same year he started a school outreach dental program which he continued for ten years, until 2006. In that time, his organization saw over 10,000 children each year.


In 2004, Dr. Q started his post-graduate dental work at the Las Vegas Institute for Advanced Dental Studies (LVI). Studied at LVI from 2004-2010..


National Dental Association – Member


American Dental Association – Member


Missouri Dental Association – Member


Grenter St. Louis Dental Society – Member

Beyond The Dental Chair

When Dr. Q is not treating his patients, he is a serial entrepreneur.  Dr. Q holds 3 patents for oral/dental appliances. He enjoys the entire process of idea to the completed product and to the consumer.

headshot of doctor

Dr. Steven Keglar

Dr. Steven Keglar was born in Camden, Arkansas and is a graduate from Indiana University-Bloomington.  He obtained his dental degree from Indiana University School of Dentistry and has provided patient-centered dental care in the Southern Missouri and Southern Illinois regions.

Dental Experience

Dr. Keglar has a wide range of clinical experience, including emergency dental care, cosmetic dentistry, and oral surgery. He has received certificates in implant dentistry and clear aligners. Dr. Keglar is also a member of the Academy of General Dentistry and the National Dental Association.


In his spare time, Dr. Keglar enjoys spending time with his family, attending Cardinals games, developing software and playing basketball. He has also spent time mentoring students and volunteering to treat our nation’s veterans.

With years of valuable dental experience, he is proud to offer professional, compassionate care to patients like you.