Meet our Staff

Call us today at 763-389-3126 to schedule an appointment. We look forward to the opportunity to serve you!

Dirk Posthumus
Dr. Dirk Posthumus is a graduate of Bemidji State University, and the University of Minnesota school of Dentistry. He has been practicing in St. Michael since graduation in 1982. He is married, with three children, and they have lived in St. Michael since 1984. Hobbies outside of dentistry include fishing, hunting, skiing, and camping.
Jennifer Dechaine
Dr. Dechaine is from the Annandale area. She is a proud alumnus of St. Cloud State University, where she graduated Summa cum laude with degrees in biomedica l science and biochemistry. In 2007, she received her DDS from University of Minnesota School of Dentistry. After graduation, Dr. Dechaine practiced in Sartell for four years prior to joining Princeton Dental in 2011. Dr. Dechaine is committed to providing high quality, compassionate dental care and loves work ing with patients of all ages. Outside of work, she enjoys spending time with her family including two young boys. They spend a lot of time playing outdoors enjoy being on the lake, singing together, doing 5k obstacle runs and following the Minnesota Twins and Vikings.
Mark Yseth
Dr. Mark Yseth is a graduate of the University of Minnesota Morris and the University of Minnesota School of Dentistry. He has been practicing dentistry in Princeton since the 1983. He is married with two adult children. His hobbies outside of the office include golf, hunting and traveling.
Madeline Scheidt
Dr. Madeline Scheidt is a graduate of Concordia college in Moorhead, Minnesota and the University of Minnesota School of Dentistry. She practiced in Portland, Oregon prior to joining the practice here in Princeton in May of 2016. Away from the office she enjoys time spent with her husband and her dog, along with hobbies such as snow skiing, gardening & sewing.
Our Dental Hygienists
Melissa, Tammy & Diana
(from left to right)
Our Dental Assistants
Pam, Angela & Lindsay
(from left to right)
Not Pictured, Shari and Jen
Front Desk
Our Front Desk Staff
Wanda & Jean
(from left to right)
Not Pictured, Shari

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