Call: (972) 539-6831

Meet The Team

Lisa Johnson, CDA,RDA,EF

Office Manager

Lisa has been employed with Dr. Test since February 2019 and says, “it’s so exciting to be working with such a great group of people”.   She has been in the dental profession since 1976, receiving her degree from the University of Oregon Dental School and then had the rare opportunity to receive her expanded function license from Stanford University in 1985.  Lisa and her husband have been Texans for 24 years, after being transferred here from California, and are very proud to live in such a great state.  They have two sons, one grandson and one granddaughter.  When not working, Lisa can be found gardening, skiing, and watching movies with her husband Rod.


Betsy Butterworth, RDA

Administrative Assistant / Registered Dental Assistant

Betsy has been in the dental field since 1986, and started working with Dr. Test in 2002.  She started her career in California, but has spent the last 24 years in Texas.  She has been married to her wonderful husband, Chris, for the last 25 years and they have been blessed with one awesome daughter, Isabella. Betsy enjoys providing quality customer service to all of Dr. Test’s patients, and looks forward to seeing familiar and new faces in our office.  She greets everyone as if they were family, with an eagerness to make them feel welcome and meet their needs.  She says, “Dr. Test has brought a great group of professionals together to assist our patients and I’m thankful to be a part of the team”.  Keep smiling… is her motto!


Mildred Fain

Administrative Assistant

Mildred joined Dr. Test’s team in July 1998.  She has been in the dental field for 55 years starting as a dental assistant and eventually being an office manager for several dentists in the Denton, Houston and Flower Mound area.  She has worked in general dentistry, pediatric and oral surgery offices.  Although born in Raton New Mexico, she grew up in Denton Texas and is very proud to call Denton her home.  Mildred and her husband Bennett have two daughters and one son.  They have seven beautiful grandchildren and two great granddaughters.  Mildred loves scrap booking, all kinds of crafts and outside the home she and her husband enjoy cruising and camping.


Jordan Gardner, RDA

Registered Dental Assistant

Jordan became a professional in the dental field in 2008, and has been with Dr. Test’s office since 2012.  She is married to a very loving and supportive husband, Chris and a proud mother of two active, fun loving, boys.  She has spent her life in and around Flower Mound and is very excited to be a member of Dr. Test’s wonderful team.  In her spare time, she enjoys doing arts and crafts with the boys, and gardening.  Jordan loves her profession and is always a great team player that enjoys making our patients feel comfortable.  She is happy to be able to be doing what she loves with such a great group of coworkers and patients.


Tracy Knapp, RDH

Registered Dental Hygienist

Tracy graduated from Indiana University with a degree in Dental Hygiene in 1986 and has been one of Dr. Test’s hygienists since 1997.  Tracy and her husband, Jeff, have two adult children.  Their daughter and her husband have two little children that Tracy can’t get enough of, and their son is out in the working world.  Dental Hygiene has been her passion, from helping her patients through great hygiene care and even a “shoulder to lean on” when needed. Tracy says, “I take pride in all the relationships I have built over the years with each of my patients”.  She feels very blessed to be a part of such a wonderful dental office and community.


Michelle Ridinger, RDH

Registered Dental Hygienist

Michelle has been a resident of the Lewisville, Flower Mound area since 1970.  She began her college career at the University of North Texas and then finished her degree in 1988 at Texas Women’s University with a Bachelor of Science Degree in Dental Hygiene. She married her husband Dale in 1986 and they have two awesome daughters, son-in-law and grand kids!  Michelle came to work for Dr. Test in the fall of 2000 and enjoys serving as a dental hygienist to many friends, family and new faces. She enjoys meeting new people and helping them to overcome their fears of dentistry.  She feels blessed to be able to work for a dentist who provides excellent quality care and helps his patients to feel at ease. She is proud to be a part of this great dental team that strives to serve with compassion and professionalism.


Lynn Lawton, RDH

Registered Dental Hygienist

Lynn has been a dental hygienist since 1990, where she graduated from the University of South Dakota.  She joined Dr. Test’s team as a dental hygienist in 2014.  South Dakota is where she grew up, and met her husband, Rick. They have two remarkable teenage boys, and enjoy family time, working out, riding their road bikes, watching their boys play Ultimate Frisbee and Baseball.  Whenever they get the chance, they like to vacation in Florida and anywhere they can be by the ocean.  As a member of Dr. Test’s great team, Lynn says, “I’m here to provide the highest level of care and have lasting relationships with my patients”.  She recommends, “If you need any dental work or just a dental office for regular check-ups, Dr. Test’s team and I would love to check out your smile and help in any way we can”.  


Cindy Morris, RDH

Registered Dental Hygienist

Cindy has been happily employed with Dr. Test since February 2017 and says she is “thankful to work with such an amazing group of dental professionals.”  She has been a Registered Dental Hygienist since 1987, receiving her AAS from Amarillo College.  Throughout Cindy’s career, she had the opportunity to practice in both general dental and orthodontic office settings.  She authored professional journal articles regarding Orthodontic Dental Hygiene, in addition to serving as a past Treasurer and Newsletter Editor for the Dallas Dental Hygiene Society.  Although born in Wyoming, Cindy has proudly called Texas her home since 1983.  She and husband Steve feel blessed to have raised their twins, Eric and Emily, in Flower Mound and are very proud of their Baylor Bears!  When outside the office, Cindy’s time is spent enjoying musicals, the beach, and Disney trips.


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