When you visit Dental Associates of Manchester, our dentists will do everything possible to help you achieve the beautiful, healthy smile you envision—and our team will do everything we can to help. If you would like to learn more about our experience or about the way we help Drs. Collier, Goettsch, and Stecklein, please feel free to look over our biographies. We invite you to contact us today if you have any questions or if you like to learn more about dental care in Manchester, Iowa. We are eager to care for you!



Connie Behnken, Office Manager, RDA

Connie has been with us for 25+ years. Connie brings a high level of experience in both the clinical and business areas of our practice. She worked as a registered dental assistant from 1987 until 2002. In June 2002, she became the office manager for our practice. She graduated in May 2003 from Upper Iowa University with a degree in business/human resource management. Connie is a caring professional and a great asset to our team.

Connie and her husband, Jon, have two grown children. She is interested in politics and music, and enjoys wine tasting and volunteering as a Manchester City councilperson.



Mary White, CDA, Financial Coordinator, RDA

Mary has been with Dental Associates of Manchester for over 21 years. She earned her degree at NICC in 1981. Mary enjoys being part of a team that strives to create a warm and friendly environment for our patients while bringing them the latest in dental technology and techniques.

Mary has three children, Alex, Noah, and Taylor, and loves spending time with them. She is interested in music, photography, and guns, and she enjoys boating, kayaking, target shooting, and other outdoor activities.



Jeni Ries, Financial Coordinator, RDA

Jeni has been with Dental Associates of Manchester since 1996. She graduated from Kirkwood Community College as a medical secretary in 1993 and became a Registered Dental Assistant in 2001. She is proud to be part of a practice with dental professionals who stay up to date on the newest dental technology.

Jeni is married to Bob, and they have three sons: Brandon, Ben, and Blake. She loves camping, NASCAR, and spending time with her boys.



Trudi Schnell, RDA, Relationship Coordinator

Since 2007, Trudi has been helping patients at our practice. As our relationship coordinator, she greets patients as they enter our office and helps schedule dental hygiene appointments. Trudi graduated from the dental assisting program at NICC in 1996.

Trudi and her husband, Mark, have three children: Emmale, Carter, and Maleah. Her hobbies include shopping, spending time with family and friends, and attending her children’s events. She also enjoys maintaining her farm with her family.



Jill Lewis, RDA

Jill has been with our dental practice since 2002. In 1984, she became a Certified Dental Assistant through NICC. With her friendly approach and caring demeanor, Jill contributes to the great atmosphere of our dental practice. She does her best to make sure patients feel comfortable and welcome with us as a Dental Assistant and Relationship Coordinator.

Jill is married and has four children. She loves NASCAR, boating, and spending time with her family.



Michelle Hettinger, RDA, Relationship Coordinator

Michelle has been helping patients at Dental Associates of Manchester as a Dental Assistant and Relationship Coordinator since July 2013.

Michelle and her husband, Dwight have two sons, Tanner and Wyatt, and a dog, Mack. Michelle loves spending time with her family and friends, going on walks, being outdoors, and watching football.



Amy Boren, RDA, Financial Coordinator

Amy is a 2002 Kirkwood Community College Graduate in Dental Assisting. Having worked in the dental field for several years, Amy has experience both clinically and in administration.

Amy and her husband, Max, have two children, Dylan and Emma, and a dog named Higgins. She enjoys watching the kids’ activities, golfing, spending time with family and friends, and being outdoors.