Our Philosophy

Queenston Dental is committed to helping our patients achieve the best possible outcome for their dental health in a calm and caring environment.

We strongly encourage our patients to have a regular comprehensive dental and periodontal exam which includes a thorough exam of the teeth and gums. These exams help us create a personalized treatment plan specifically for each patient. Regular appointments help minimize and sometimes eliminate the need for further dental procedures. All treatment options are explained thoroughly and we are happy to answer any questions.


Read about us in the Spec:
Queenston Dental

December 10, 2015

Queenston Dental is proud to be the premiere dental office in Hamilton

December 21, 2015

25 Things Patients Said They Love About Us!

In a recent patient survey, we had an overwhelmingly positive response to the question, “What do you like best about our practice?” Here is just a small sample of what our patients said about us. Thank you so much to all our patients that participated and for all your encouraging remarks. We were also given suggestions for improvements which will serve to help us provide even better care in the future!

  1. Everyone is sooo nice!
  2. The staff are very gentle on my teeth.
  3. Very fortunate to be getting excellent, thorough care.
  4. Staff make people comfortable going to the dentist.
  5. Staff are friendly.
  6. There is a family-like atmosphere.
  7. First time in my life I can tell you “I love going to the dentist!”
  8. Everyone very helpful and courteous.
  9. Staff explains all procedures to reduce anxiety while in chair.
  10. Always available in case of emergency.
  11. Staff listens.
  12. Staff are very kind.
  13. I love everything about Queenston Dental. I would highly recommend this Dental Office to friends.
  14. Customer care is excellent and they make me feel at home.
  15. Everyone is friendly and the service is awesome!
  16. There is consistency in level of care.
  17. Personalized service – I’ve been a patient for 44 years.
  18. I have never had an issue in 25+ years.
  19. The staff obviously care about the patients dental health!
  20. I always feel welcome.
  21. Everything! I tell my friends and family to come here.
  22. The warmth and expertise of the staff.
  23. The people – you’re all so friendly!
  24. Super work done by the dentist.
  25. Staff is amazing.

Our Team

Dr. Mark Poustie

Family Dentistry


Dr. Mark Poustie grew up going to his uncle's dental office with his family for all their dental work.  Going to his uncle’s practice was always such a positive experience and was what instilled the desire in Mark, from a very young age, to become a dentist.

The road to dentistry started at the University of Western Ontario where Mark received his Bachelor of Science degree in Environmental Science and then went on to obtain his Masters of Science degree in anatomy and cell biology.  From there, he went on to pursue his true passion and received his Doctorate of Dental Surgery degree, also from the University of Western Ontario.

Dr. Mark Poustie is a gentle and caring dentist who truly strives to provide patients with quality, personalized service and will go out of his way to make sure your experience is a positive one.  He is interested in open communication with his patients, providing the highest level of care and clinical excellence.

Mark takes the time to explain the treatment choices and services available to his patients.  He makes each individual feel they are a part of the decision-making process.  His reputation for patient-friendly service has made him very well-liked.

Mark considers his professional and caring staff among his most valuable assets. The staff is truly a team and enjoys working together. Together, they create a relaxed office environment.

    Dr. Jay Khimani

    Dr. Jay Khimani

    Family Dentistry

    Dr. Jay Khimani was born in Uganda, Africa and migrated to the United States in 1972. His family established themselves in Chicago, Illinois, where he received his Bachelor of Science degree at Aurora University. He obtained his Doctor of Dental Surgery degree from Loyola University Chicago, graduating with the class of 1988. He has been practicing dentistry for over 30 years, beginning with family dentistry in Crystal Lake, Illinois.

    Dr. Khimani maintains his enthusiasm for education and dentistry by participating in many continuing education courses including implant dentistry, Invisalign, sleep apnea, advanced restorative dentistry and cosmetic dentistry. His experience, along with advancements in dentistry, has helped Dr. Khimani provide dental care in a compassionate, kind and patient-focused environment.  He is an active member of the Ontario Dental Association, American Dental Association, Royal College of Dental Surgeons and the Canadian Dental Association.

    When he’s not practicing dentistry, Dr. Khimani enjoys travelling and spending time with family and friends. He has participated in the World Partnership Walk, Canadian Civic 150 and volunteers at various events with the Time and Knowledge organization.
    Dr. Khimani’s entire team at Queenston Dental is dedicated to giving you the personalized, gentle care that you deserve.

    “Our goal is to build lasting relationships with our patients, while ensuring excellent preventative and restorative dental care.”

      Dr. Nick Mlekuz

      Family Dentistry

      Nick received his Doctorate of Dental Surgery from the University of Toronto in 1966.  After graduation, he started his own practice on King Street in Hamilton then moved to Queenston Road in 1975.  In 2010 he became an associate for Dr. Poustie.  He loves his work and the comaraderie with patients and staff.

        Dr. Kristjan Mullerbeck

        Family Dentistry

        Dr. Kristjan Mullerbeck has always enjoyed the sciences and fine arts. During his undergraduate studies at York University, Dr. Kristjan gained an appreciation for healthcare through his study of anatomy and physiology. In dentistry, Dr. Kristjan has found the perfect combination of sculpture and science while earning his dental degree at Western University.

        Dr. Kristjan has a strong desire to ensure that his patients are comfortable so that they can maintain their best possible oral health. He enjoys answering any questions his patients may have or just talking to patients in general. He has also enjoyed bringing the dental office on the road to impoverished communities on several mission trips.



          Office Manager

          Heather joined the practice in January 2011, shortly after her husband, Dr. Poustie, bought the practice. Heather has a strong health science background which has been very helpful working in the dental field. She received her Honours Bachelor of Science from the University of Western Ontario in Foods and Nutrition. She worked as a Registered Dietitian for a number of years before deciding to come work at Queenston Dental.  Heather could not ask for a better staff to work with!


            Office Manager

            Shannon joined us at Queenston Dental in February 2016 (and has been a patient here since 2008).  She started her career as a Registered Veterinary Technician and worked in the veterinary field for 16 years.  After deciding on a career change, Shannon left her position of managing the surgery department at a referral hospital to come to Queenston Dental. Shannon loves meeting our patients and making their visit to our office as comfortable as possible. Please feel free to offer suggestions or speak with her about any of your dental needs.


              Receptionist / Financial Coordinator

              Lorraine started working at the front desk at Queenston Dental in 1983. She enjoys the friendships she has developed with the many patients over the years.


                Treatment Coordinator / Receptionist

                Shauna is the latest member to join our team. After graduating from McMaster University, Shauna went onto George Brown College in Toronto. She has been happy in her career as a Dental Assistant Level II and expanding her knowledge at reception and as our new Treatment Coordinator.


                  Dental Hygienist

                  Stephanie joined the team at Queenston Dental in June 2015. She started her career as a Dental Assistant in 2004 and later went on to complete her Dental Hygiene certification in 2009. Stephanie is passionate about educating patients on their dental care so they can achieve optimal oral health. She prides herself on providing the highest standard of care and always does so with a smile.


                    Dental Hygienist

                    Elaine graduated from Dental Assisting in 2007 in Northern Ireland and worked in Belfast for a number of years before going back to school for Dental Hygiene in 2013. Elaine loves dental hygiene and seeing the patients smile makes it effortless.


                      Becky graduated from Niagara College in 2013. She is originally from Niagara Falls, but has fallen in love with Hamilton.  She enjoys educating patients on the benefits of good oral hygiene as well as collaborating with colleagues to create patient specific treatment plans.



                        Dental Assistant - CDA II

                        Lynn has been working with Dr. Mlekuz since July 1972. She has enjoyed seeing the different generations of patients come in over the many years she has worked at Queenston Dental.  Many friendships with staff and patients have been made.


                          Dental Assistant - CDA II

                          Violetta graduated from her dental assistant course in 1993. She has been working for Dr. Mlekuz since 1998. That same year she completed her Level II assisting course. She enjoys working with the staff and patients in the dental field.


                            Dental Assistant - CDA II

                            Rosey graduated from Dental Assisting in 2003 and joined our practice in 2007. She loves her profession and is happy to be a part of a friendly team!



                              Dental Assistant - CDA II

                              Amanda graduated dental assisting school in 2012.  Amanda joined our team November 2018 making her the newest member of our staff.  She wanted to join the Queenston Dental team after seeing the rave reviews about how amazing our staff is - what a compliment!  Amanda is passionate about providing the best dental care for our patients!


                                Office Mascot

                                Finley is Dr. Mark and Heather Poustie's dog! He is an apricot standard poodle. He comes to work with Heather. He spends his time in the back office but if you are here when he is you can request a visit with him. He is a very gentle dog and just loves people!