(479) 621-9700

Meet Our Doctors

  • cotham

    Brett Cotham, D.D.S.

    Dr. Brett Cotham enjoys working with patients at both of his offices, 32nd Street Dental in Joplin, Mo and All About Smiles in Rogers, Arkansas. Dr. Cotham attended the University of Missouri, Columbia, where he studied both biology and chemistry. He followed his undergraduate studies with the pursuit of a graduate degree at University of Missouri, Kansas City. As a student in the Oral Surgery Honors Program, he earned a Doctorate Degree in Dental Studies, graduating with honors in 2012.

    After practicing for five years, in 2017, Dr. Cotham started Cotham Dental Group which includes 32nd Street Dental. He specializes in cosmetic surgery, as well as routine dental procedures. He especially enjoys the technical aspects of dental surgery and the unique challenge of creating a beautiful smile for his patients.

    Professional certifications include:

    • AACD
    • ADA
    • Missouri Dental Association
    • Arkansas Dental Association

    In addition to his great passion for dentistry, Dr. Cotham is an avid golfer and reader and he loves to travel every chance he gets.

  • Michael Krupka, D.D.S.


    Dr. Krupka was born and raised in Pueblo, Colorado. He received his Bachelor’s degree in Biology from Baylor University and then attended Baylor College of Dentistry, graduating in 1980. He practiced dentistry in Dallas for many years but eventually relocated to Northwest Arkansas because he enjoyed the quality of life here.

    Dr. Krupka opened the All About Smiles office in 2003 and enjoys offering his patients the best quality care in a warm, comfortable environment.

    Dr. Krupka has been married to his wife Stephanie for eight years, and he has two sons, two stepsons and a schnoodle named Gus. In his spare time, he enjoys classical music, theatre and fishing. He has participated in two medical mission trips to South America and has volunteered at Samaritan Clinic and Decision Point Treatment Center.

Our Happy Patients

"Dr. Cotham and his staff at All About Smiles are great! I always feel confident that I am getting exceptional care when I'm there!"

Sara R Sara R.

"Exceptional dentistry. Service was friendly and experience was comfortable."

Garret L Garret L.

"Fantastic experience! Dr Cotham really knows his cosmetic dentistry and made my whole family feel more comfortable about going to dental appointments. We liked the whole staff at All About Smiles. As I said, fantastic experience!"

Akansas R Akansas R.
We're here to help you get the perfect smile!
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