Dental Team

Marichu — Team Leader / Doctor's Clinical Assistant

Marichu leads the office team with warmth and positivity. She assists Dr. Sehnert throughout all aspects of restorative, denture, implant and surgery procedures. She also keeps our office well-stocked with clinical supplies. Marichu has been a Registered Dental Assistant since 1983. She studied advanced dental techniques at Southwestern University at Cebu City in the Philippines. Marichu has worked with Dr Sehnert since 1996 and she is dedicated to providing life-changing care for the patients who come to our practice. She is a joy and a blessing to work with and to her patients. She greatly respects Dr. Sehnert’s excellence in dentistry and his ethical character. With over 25 years in the field, a compliment like that coming from Marichu is quite an honor. Marichu has a grown son, Will, a daughter-in-law, Molly, and a precious granddaughter, Sutton. She stays busy with her church, family and friends.

Martha — Patient Coordinator / Hygiene Team Leader

Martha, our Patient Coordinator, is one of the first people our patients meet when they come to our office or call on the phone.  She provides friendly, personal assistance to our patients and makes sure that they are comfortable.  She takes the time to get to know each patient individually.  Martha has been with Dr. Sehnert as part of his team since February of 2015 and we consider her an essential part of our office family.  She loves working with Dr. Sehnert and the team.  She is a retired Dental Hygienist with 30 years of dental experience and therefore, is the perfect Hygiene Team Leader.  She graduated from Midwestern State University.  She is originally from Wichita Falls, TX but has lived in Lewisville for 30 years.  Martha and her husband have four grown children and three grandchildren.  When not at work, Martha stays busy with her family and her Chiweenie, Pedro.  She enjoys reading, movies and traveling in her spare time.


Kelly — Financial / Insurance Coordinator

Kelly is trusted by our patients to manage their accounts and to help them with all aspects of their insurance needs. She makes the business side of our practice simple so everyone else can concentrate on providing excellent dental care. Kelly’s advanced knowledge of every aspect of the dental office enables her to provide guidance in all facets of our practice. Kelly worked in general dentistry for 20 years prior to joining our team. She was born and raised in the Metroplex area and now resides in Carrollton. Kelly loves to spend her free time with her family, including her two grown sons, and she especially enjoys the company of her two girls (her dogs).


JoAnna — Dental Assistant

JoAnna works very closely with Dr. Sehnert and helps with patient care procedures, from quick checks to very complicated treatments, surgeries, and more. She is a Registered Dental Assistant and has many hours of continuing dental education training. JoAnna has worked with for Dr. Sehnert since 1995 and has over 20 years of experience. JoAnna loves seeing our patients glow with confident, beautiful smiles after their procedures. She greatly appreciates the detailed, careful work that Dr. Sehnert does for each of his patients. JoAnna is a native of Texas and has a grown daughter.


Valery — Dental Assistant

Valery received her Registered Dental Assistant Certificate from UT Health and Science in San Antonio in 2015. She is also X-Ray and Nitrous Oxide certified. We all appreciate her friendly, positive and congenial attitude. She is a hard worker and her willingness to help in any way possible makes her instrumental in our day to day patient flow.
In her free time she loves taking long walks with her two dogs, Max and Sebashtian, and spending time with her family.


Kristen — Dental Hygienist

Kristen graduated with honors from Midwestern State University in Wichita Falls, TX with a Bachelor of Science degree in Dental Hygiene. She prides herself on building trusting relationships with our patients. Kristen works alongside Dr. Sehnert to promote the good health of your teeth and other oral structures. She will answer any questions you may have about your care and help you understand the findings. She enjoys writing and photography, spending time with her family, and her Basset Hound, Dixie.


Holly — Dental Hygienist

Holly’s energetic, enthusiastic personality is a wonderful addition to our practice.

Holly says, “As the saying goes, ‘I wasn’t born in Texas, but I got here as fast as I could!'”
Holly is originally from southern Idaho.  She and her husband, Tom, moved down to Texas after graduating from college in 2005, and they have been loving the warm weather ever since.

She has a deep passion for dental hygiene, but when she’s not “nerding out” on dentistry she enjoys yoga, reading, hanging out with friends and family, visiting breweries and wineries, puzzles and movie marathons.

Texas Dental Association
The American Dental Association
The American College of Dentists
Omicron Kappa Upsilon dental honor society
The International Team for Implantology
A Spear Education Group

Quality Matters When it Comes to Your Health

Discount dentistry may get you in and out quickly, but we invest time in building relationships with our patients. We’re not in the dentistry field to provide patients with a quick fix, we’re in it to make sure they enjoy dental health for years to come.