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Our Practice

We are devoted to restoring and enhancing the natural beauty of your smile using conservative, state of the art procedures that will result in beautiful, long lasting smiles!

Our History

  • Dr. Nyle Diefenbacher graduated from the University of Toronto in 1953
  • He opened a practice in Kitchener, on Ontario Street, in 1953
  • Jeff Diefenbacher joined the practice in 1995
  • The practice moved to 10 Lancaster Street, in 2009
  • Dr. Jackie Sieber joined in 2009
  • Dr. Abby Donovan started working at Diefenbacher Sieber Dental in 2012
  • Upon joining the practice, we made the connection that Dr. Nyle Diefenbacher went to dental school with Abby's grandfather Dr. Harvey Campbell at the University of Toronto. They were members of the same dental fraternity Xi Psi Phi
  • The practice changed its name to Diefenbacher Donovan Sieber Dental in 2016
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High Standards

A standard of excellence in personalized care enables us to provide quality dental services. We provide comprehensive treatment planning and use restorative and cosmetic dentistry to take care of all your dental needs. Should a dental emergency occur, we make every effort to see and care for you, as soon as possible.

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Uncompromised Safety

Infection control is very important to us. We strictly maintain sterilization and cross contamination processes, using the standards recommended by the Canadian Dental Association, The Royal College Of Dental Surgeons of Ontario, and the Centers for Disease Control and Prevention (CDC).

Education and Prevention

We strive to provide preventive dental health care as opposed to disease care. Thorough exams, routine cleanings, flossing, sealants and fluoride are all important to maintain your optimal dental health.

Friends of the Environment

We have a genuine commitment to being supportive members of the community and sensitive to the environment. Our efforts include water and energy conservation programs, minimizing paper usage, use of digital radiography, as well as purchasing environmentally sensitive products from local companies.

A Positive Experience

Building a foundation of trust by treating our patients as special individuals is vital to our success. We understand how uneasy some patients may feel about their dental visits and the way we can make a difference, is by providing a relaxing and positive experience to our patients.

Training and Expertise

We want you to be confident knowing that we are a team of highly trained and skilled clinicians. To give you the best possible service and results, we are committed to continuing education and learning. We attend lectures, meetings and dental conventions to stay informed of new techniques, the latest products and the newest equipment.

Thank you for allowing us to take care of your dental needs,
we look forward to serving you!