Meet Our Team

Our Dentists

Dr. Tim Sellner

Dr. Tim Sellner, B.Sc, DDS


Dr. Sellner obtained his Bachelor of Science and Doctor of Dental Surgery degrees from University of Western Ontario, and has been with TechTown Dentistry since opening in 2007.


Dr. Sellner enjoys meeting new people and providing superior dental care in a technologically advanced office setting.  He also enjoys continuing education and lifelong learning to offer his patient's the most up-to-date knowledge and treatment options.  Dr. Sellner is a member of the Canadian Dental Association, Ontario Dental Association and was a past President of the Waterloo Wellington Dental Society. He has served as a General Councillor on the Ontario Dental Association. 


Dr. Sellner was born and raised in Waterloo, Ontario and still resides in Waterloo with his wife, Hayley and daughters, Brooklyn and Olivia.  In Dr. Sellner's spare time, he enjoys sailing, downhill skiing and golfing.

Dr. Tim Sellner

Dr. Andrew Jones, B.A., DDS


Dr. Andrew Jones completed his dental degree at the Schulich School of Medicine & Dentistry at Western University in 2019.  While completing his studies, he strongly believed in being involved within the school community and abroad.  He served as Class President, participated in many extracurricular sports and completed several externships and overseas mission trips, including one of which he organized to the country of Grenada.


Following graduation, Dr. Jones was fortunate enough to be accepted into a Hospital Dental Residency program at Mount Sinai Hospital / University of Toronto.  This provided an excellent opportunity to continue his education with several highly regarded specialists in the oral healthcare field.  The latter part of his residency was highlighted by the COVID-19 pandemic, where he and his co-residents continued to deliver frontline dental healthcare in the emergency department.


Outside dentistry, Dr. Jones enjoys sports, fitness, awesome T.V. shows and is an avid Toronto Raptors fan.  


Our Dental Hygienists

Dr. Tim Sellner

Ashley, RDH


Ashley obtained her Dental Hygiene diploma in 2010 from the Canadian Institute of Dental Hygiene in Hamilton. Prior to completing her Dental Hygiene diploma, she completed an undergraduate degree in Environmental Studies from the University of Waterloo.  Ashley is an active member of the College of Dental Hygienists of Ontario and the Ontario Dental Hygiene Association.


Ashley is dedicated to helping achieve optimal oral health while creating lasting connections with all her patients.


Ashley was born and raised in Waterloo where she still resides with her husband Peter, her son, Colton and daughter, Brinley.  In her spare time Ashley enjoys travelling and being active with her family. 

Kim, RDH


Kim graduated with her Dental Hygiene diploma in 2005 from the Canadian Institute of Dental Hygiene. She maintains an active membership with the College of Dental Hygienists of Ontario (CDHO) as well as the Canadian Dental Hygienists Association (CDHA).


Kim loves to learn and is continually researching to stay up to date on evidenced based information that will help patients achieve optimal oral health, while focusing on their comfort, satisfaction and education.


Kim currently resides in Waterloo with her husband Rob, kids Josh and Kiera, and their two dogs, Winnie and Roo.  In her free time, Kim loves taking the dogs for long walks, watching any sort of sport and spending time with her family. 

Dr. Tim Sellner

Abby, RDH


Abby graduated from Toronto College of Dental Hygiene and Auxillaries with Honours, obtaining her diploma after completing the Dental Hygiene program in 2020.  She is registered with the College of Dental Hygiene and a member of the Ontario Dental Hygienists Association and the Canadian Dental Hygienists Association.


Abby is determined to stay educated on current Dental Hygiene practices, ensuring she is providing the best oral care possible for all her patients.


Abby grew up in the town of Hanover.  While she enjoyed growing up in a small town, she is looking forward to new experiences while living in the beautiful city of Waterloo.  Abby is ready to meet new people and create great memories.  Away from work, Abby enjoys spending time with friends and family and is always game for a great movie. 



Dr. Tim Sellner

Kaitlyn, RDH

Kaitlyn graduated from Georgian College with Honours from the Dental Hygiene program in 2021. She is registered with the College of Dental Hygienists of Ontario (CDHO) and is an active member of the Canadian Dental Hygienists Association (CDHA).


Kaitlyn continues to stay educated with journals, articles and readings on current dental hygiene information. She strives to provide the best quality of care while making her patients feel at ease. 


Kaitlyn grew up in the KW area and currently resides in Kitchener.  In her spare time, Kaitlyn enjoys going for runs, walking her dog, playing ringette, traveling and spending time with friends and family. 

Dr. Tim Sellner

Allyson, RDH


Allyson received her dental hygiene diploma from The Canadian Academy of Dental Health and Sciences.  Prior to completing her dental hygiene diploma, Allyson graduated from Georgian College as a Cerified Level II Dental Assistant.  Allyson is a member of the Ontario Dental Assisting Association (ODAA) and an active member of the Canadian Dental Hygiene Association (CDHA). 


Allyson loves to stay educated and up-to-date on dental hygiene practices by completing yearly courses, reading professional publications, and learning modules offered by the CDHA to ensure optimal oral care is provided to her patients. 


Allyson grew up in Waterloo region and continues to live here with her husband, Connor, and her dog, June.  In her free time, she loves going on walks, hikes and runs.  She enjoys cooking and hanging out with friends and family. 

Our Dental Assistants

Dr. Tim Sellner

Paige, CDAII


Paige graduated from Niagara College as a Certified Level II Dental Assistant with Honors in 2021. Paige enjoys providing exceptional patient care and educating others on their oral health. Seeing patients leave happy after their treatment is very rewarding for her. 


Paige was born and raised in Waterloo and currently still resides here. In her free time, Paige enjoys spending time with her friends and family, golfing, and doing spin classes.

Dr. Tim Sellner

Brittany, CDAII


Brittany graduated from Durham College with honors as a Certified Level II Dental Assistant. Prior to completing her Dental Assisting certificate, Brittany obtained an undergraduate degree in Biology from Wilfrid Laurier University.


Brittany enjoys learning and educating patients on optimal oral health practices while creating personal connections with every patient.


Brittany grew up in Kitchener-Waterloo and currently resides in Kitchener. In her spare time, she loves going for runs, practicing hot yoga, playing volleyball and spending time with her family and friends. 

Dr. Tim Sellner



Jane graduated from the Toronto School of Business with honours in 2003, earning her Dental Assistant Certification.  She is a proud and active member of the Ontario Dental Association. 


Jane is married, has two sons, and a loving dog.  She loves spending family time outdoors by staying active skiing, hiking, and running. 


Jane is looking forward to helping you bring out your best smile! 

Our Office Administrators

Dr. Tim Sellner

Katherine, CDA, Dental Administrator


Katherine received her diploma in Dental Assisting in 1990 from Durham College.  She worked as an assistant for 10 years before taking a few years off to raise her 2 sons.  Katherine re-entered the work force as a Dental Receptionist for 12 years before joining TechTown Dentistry.


She loves working in the dental field. The bond and trust that is created with patients is such a wonderful experience. 


Katherine was born and raised in Niagara Falls and currently resides in Waterloo with her husband, Chris, and their two sons, Cody and Kyle.

Dr. Tim Sellner

Carli, Dental Administrator

Carli joined the office in 2022 and has been a wonderful addition to the TechTown Dental team.  She was trained hands-on as a dental administrator while living in Toronto.   Carli enjoys the personal interaction with patients and providing them with the best possible dental experience.  


In her free time, Carli enjoys spending time with her fiance, Des, friends and family.  She enjoys going for long walks and is an avid animal lover. 

Dr. Tim Sellner

Lesley, CDAII, Office Manager & Patient Care Coordinator


Lesley graduated as a Certified Level II Dental Assistant in 1996 from Niagara College in Welland.  She has spent many years experiencing the different roles of dentistry from Dental Assisting, Dental Claims Assessor, Dental Software Designer for a major insurance company, Administrator, Treatment Coordinator and Office Manager. Her passion has always been providing excellent customer service and outstanding dental care for all patients.


Lesley was born and raised in the KW Region where she currently resides with her husband, Dennis, and their 3 children, Matthew, Megan and Charlotte.  In her spare time, she enjoys attending her kids sporting and school events...and a good glass of wine!  She loves gardening, home renovations, traveling, and walking their 2 shih tzus, Georgia and Murphy.