• Home
• Staff
• Office
• Services
• New Patients
• Contact Us
• Appointment Request
• Patient Education

Have a question?

Search through our library of dental topics, including articles, fun facts, celebrity interviews and more.

All our professionals at P.D.B, D.D.S.,PA. maintain the highest levels of accreditation and pursue ongoing education to stay abreast of the latest trends in dentistry.

Paul D. Boettner, DDS, PA

Dr. Boettner has been practicing dentistry for over 15 years, is a Minnesota native, and is a graduate of the University of Minnesota School of Dentistry. He is dedicated to excellent care for every patient. He’s completed extensive, advanced training in dentistry and serves on the board of the Minnesota Academy of General Dentistry. He’s also involved with community organizations like the Chamber of Commerce and Rotary International.

Education:

• University of Minnesota DDS, 2005
• Concordia College, B.A.

His memberships in the following organizations have been a continual source of professional development:

• American Dental Association
• Minnesota Dental Association
• American Academy of Cosmetic Dentistry
• Academy of General Dentistry
• Seattle Study Club

He lives in Plymouth with his wife, daughter, and son. Together they enjoy many outdoor activities, including; boating, golfing, biking, and skiing.

Fengyuan Zheng, DDS, PhD

We are excited to introduce our new associate Dr. Fengyuan Zheng. He is the director of the Program in Prosthodontics at the University of Minnesota. He is a Board Certified Prosthodontist.  He is highly skied and knowledgeable.

Education:

• PhD, The Ohio State University - Major: Oral Biology
• Bachelor in Medicine, Beijing Medical
• University School of Stomatology

Advanced Education In:

• Prosthodontics, Residency
• Herman Ostrow School of Dentistry

Languages:

• English
• Chinese
• Korean
• Mandarin  

Dr. Zheng lives in Plymouth with his wife and daughter. He looks forward to providing great care and talent to the practice.

Michael P. Sievert, DDS

Dr. Sievert has retired, as of December 31, 2020, after 41 years of servicing the Maple Grove Community.  We wish him all the best in his retirement! 

Dr. Sievert has dedicated his professional career to this community and abroad in the practice of general family dentistry. He is a graduate of the University of Minnesota with a BA degree in Microbiology followed by a DDS degree from the University of Minnesota School of Dentistry in 1979. He and Dr. Topel began this practice in Maple Grove in 1979. His memberships in the following organizations have been a continual source of professional development:

• American Dental Association
• Minnesota Dental Association
• Minneapolis District Dental Society
• American Academy of Cosmetic Dentistry
• Academy of Laser Dentistry

Dr. Sievert has also served the following organization on missions abroad.

• Medical Group Mission (Honduras)
• Medical Ministry International (Dominican Republic and Peru)
• Baptist Medical and Dental Mission International (Honduras)

Dr. Sievert and his wife Gayle, have four children and one grandchild.  All four children have worked at the practice at one time or another. Outside of dentistry he enjoys hunting, biking and traveling with Gayle. His special interest is in general aviation flying as a private pilot.

It has been an honor for Dr. Sievert to be voted by his peers as a Top Dentist.  He is listed in the 2009 and 2010 Top Dentist issues of Minnesota Monthly magazine as well as the 2007 and January 2012 issue of Mpls. St. Paul magazine.  He is also listed in USATopDentist.com for the year 2016.

Richard W. Topel, DDS

Dr. Topel has retired, as of December 31, 2020, after 41 years of servicing the Maple Grove Community.  We wish him all the best in his retirement! 

Dr. Topel's professional career is dedicated to serving the northwestern suburban community and patients abroad in the practice of general family dentistry. A graduate of the University of Minnesota, he holds both a B.E.S. Degree and B.S. Degree. He received his D.D.S. Degree from the University of Minnesota School of Dentistry in 1978. Dr. Sievert and Dr. Topel began their practice in Maple Grove in 1979. Dr. Topel's memberships in the following organizations are a continual source of professional development:

• American Dental Association
• Minnesota Dental Association
• Minneapolis District Dental Society
• American Academy of Cosmetic Dentistry
• Minnesota Academy of Cosmetic Dentistry
• Academy of Laser Dentistry

Dr. Topel has served on multiple missions to Mexico with the organization Medical Group Mission.

Dr. Topel and his wife Mary have been married for 33 years and have two daughters. All of his family has contributed to the practice. In his free time, he enjoys hiking, biking, studying history and traveling with Mary.