Meet Our Dental Team

Tell us your personal needs and concerns. Our Lethbridge dental team will make sure you and your family are well-taken care of.

Dr. Challis - a dentist in Lethbridge, AB
Meet Dr. Challis

‘‘I spent most of my youth in British Columbia before moving to Manitoba where I completed my post-secondary education at the University of Manitoba. I first graduated in 2012 and became a registered dental hygienist.

As I gained more knowledge on dental and oral health, I eventually wanted to take an extra step. I went on to graduate in 2017 as a DMD. I then moved to Saskatchewan soon after, and we are very excited and happy to now call Lethbridge, Alberta our home!

Dentistry for me is something I love to do and am very passionate about. I love getting to know patients and their families. I love to spend time with my family, and I love to cook and bake.

Flower designed divider

Get to Know Us

Click our photo to read our bios.

Connor, office manager in Lethbridge

Office Manager

I graduated from the University of Lethbridge in 2020 with a Bachelor of Management and a Minor in Marketing. I soon after became the Business and Office Manager at Signature Dentistry. Everyone here is wonderful and I’m very happy I have the opportunity to be a part of the Signature team.
Rhea, Financial Coordinator for our dentists in Lethbridge.

Financial Coordinator

I have been employed at Signature Dentistry since 1992. I joined the team first as a Dental Assistant and I am now the Financial Coordinator. I am married with three wonderful children who keep me very busy. I enjoy camping, curling, scrapbooking, warm holidays, and spending time with friends and family!

Credentials: Registered Dental Assistant 11, NAIT, Edmonton, 1990

“Life is not measured by the breaths we take, but by the moments that take our breath away.”– Author Unknow

Teirjah, Registered Dental Assistant for our dentist in Lethbridge.

Registered Dental Assistant

I graduated from the RDA program at College of the Rockies in 2017. I started my journey at Signature Dentistry in 2019, and it has been amazing. Dr. Johnson is a very skilled dentist, along with his whole team. When I am not working, I love spending time outdoors with my family and eating delicious food.

“Every day may not be a good day, but there is good in every day.”

Aaron is a Registered Dental Hygienist for Signature Dentistry

Registered Dental Hygienist

I graduated from the Coastal Bend Dental Hygiene Program in Texas in 2006. Soon after, I joined the Signature Dentistry team. What attracted me to this practice was the cutting edge technology that Dr. Johnson incorporates. It allows the staff to strive for excellence in their respective positions. I look forward to coming to work each day to interact with our terrific patients and welcoming staff and motivate them to improve their oral health. In my spare time, I like to participate in outdoor sports with my girlfriend, Emily, reading, and love spending time with family and friends.

“Carpe Diem” Seize the Day – Quintus Huratius Flaccus

Harolyn, Registered Dental Hygienist for dentists in Lethbridge

Registered Dental Hygienist

I moved to Lethbridge from the East Coast in 1988 and began working for Dr. Robert Kinniburgh, now known as Signature Dentistry. Dr. Ryan Johnson purchased the practice in 2009 and I am very grateful to maintain my position and have the opportunity to work for these dentists in Lethbridge. I take pleasure in my job as a Dental Hygienist in particular, our wonderful patients and friendly staff. I have been married for 22 years and have three children. I love to spend time with my family and enjoy reading.


5 Rules of Happiness:

  • Free your heart from hatred
  • Free your mind from worries
  • Live simply
  • Give more
  • Expect less
Tanya, Registered Dental Hygienist for our dentists in Lethbridge

Registered Dental Hygienist

Originally a farm girl from Saskatchewan, I love living, working, and raising my family in Southern Alberta. I graduated from SIAST in Regina in 1995. I had the privilege of working with Dr. Kinniburgh in 2002 for five years. Later, I took time off to stay at home for a couple of years with my two young daughters. I love my profession and I am happy to return under the guidance and vision of Dr. Johnson. In my spare time, I like to volunteer in my community and Church, play volleyball, go for walks (and a little run), play with my kids, read, and have coffee with my friends. I now also get to drive my girls to soccer and dance!

A Child can teach an adult three things…
To be Happy for no reason
To always be busy with something
And to know how to demand with all his might that which he desires

– Paulo Coelho 1947

What can you expect from us?


Every dental need is different. Let us know how to proceed at your pace.


We always strive to work within your comfort levels, schedule, and finances.


Your family is part of our dental family. We will always treat you with respect.

Now You've Met Us

We can’t wait to get to know you!