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Meet Our Team

Meet the Mason Dental Team

Shawna O'Steel

SHAWNA grew up in Flower Mound, Texas, where she attended Marcus High School.

She attended TCJC and has won an award for Excellence in Leadership.

She began working in dentistry in 2008 hoping to improve her own family’s dental health and was eager to learn how to help others in the same way.

Shawna is happily married, has three sons and three godsons.

She loves to travel, play games, go to baseball games and anything else that equals family time.

Dawn Turgeon

DAWN grew up in Ft. Worth, Texas, and attended TCJC.
She began dentistry in high school working the front office for Burgess & Mason DDS until she became a hygienist in 1997.

She enjoys serving at her church, the outdoors, camping and all things family.

Making a connection and establishing real relationships with her patients is what drew her to becoming a hygienist.

Cari Riggs

CARI grew up in Pottsboro, Texas, and received her RDA from Grayson College in 2010.

She enjoys traveling, camping, rafting and zip lining with her family.

She considers it a blessing to work at Mason Dental because everyone works hard and has fun doing it.

Melanie Taylor

MELANIE grew up in Keller, Texas, and earned her Bachelor of Science degree in Dental Hygiene from Texas A&M College of Dentistry.

She won second place in the annual TDHA research poster competition and earned the Outstanding Achievement in Research award. Her research was published in peer reviewed journals.

She enjoys an active lifestyle with her family. Hiking, traveling, scuba diving and going to the gym are some of her favorite activities, and she is an unashamed Taylor Swift fan!

Melanie loves making patients feel comfortable coming to the dentist.


MARIA moved to Texas in 1998 and graduated from Lewisville High School. She decided to join the Dental field and started out as a Dental Assistant. When asked to help patients with their dental insurance she was excited to help because she loves numbers. Maria has managed dental practices and enjoys helping patients improve their smile. Maria lives in the area and loves spending time with her husband, three kids, and the family dog.

Linnea Wolters

LINNEA grew up in Bloomington, MN, but moved to Keller, Tx, in high school.

She graduated Summa Cum Laude with a Bachelor of Arts in Music from Texas Tech University, and then from Texas A&M School of Dentistry as a hygienist.

She is married with a son and a daughter and two goldendoodles.

She loves family time, travel, baking, singing and playing piano.

Her favorite thing about her job is building relationships with her patients. She loves being able to offer her patients the latest in education, procedures and technology.

Sonia Serna

SONIA grew up in Lewisville, Texas and started dentistry in 2013.

She is married with two kids.

She enjoys family time, church and weekend cookouts.

Sonia has the goal of real relationship with her patients and knows that means more than just knowledge of their teeth.

Angie Hardcastle

ANGIE grew up in Arkansas before attending the University of Tennessee. She received her degree in Allied Health Science.

She was drawn to become a hygienist when she worked part time for a dentist in high school and loved it.

Angie has a son and a daughter and enjoys reading, cooking and being outdoors.

She loves helping her patients achieve total health and overcoming their fears of dentistry.

Chandra Konsol

CHANDRA | While born and raised in Ohio, Chandra has been happy to claim Texas as her home since 2014.

She has been a dental assistant since 2008 and loves helping her patients overcome their fears as they achieve their dental goals.

In her spare time, Chandra enjoys time with family and friends, reading, cooking, dancing and laughing every chance she gets.


CASSIE grew up in Pottsboro, Texas. She received her Associates of Applied Science degree in Dental Assisting from Grayson College, May 2020.

She enjoys spending family time on the lake fishing and hunting. She also enjoys trying new recipes and trying new restaurants.

She enjoys seeing patients gain confidence through improving their smiles and oral health.


CHELSEA grew up in a small town 15 minutes west of Sherman, TX where the cows out-numbered people. She moved to the DFW area in 2018 to be closer to the city. She has 10+ years of medical experience and in 2023 was able to bridge the gap between the dental and medical industry when she was introduced to Dental Sleep Medicine. She truly values the relationship she is able to build
with patients by educating and helping them find a solution to treating their sleep apnea.

When she is not at work she enjoys traveling, going to church, and spending as much quality time as she can with her husband and family. She believes her mission in life is to serve the people God puts in her path in whatever way she can.


MITCH Mason was born and raised in Grapevine, Texas. He earned his a degree in Communication and Business from Texas A&M University in 2019, as well as a Master’s in Sports Management in 2021 from Dallas Baptist University.

Mitch has spent almost a decade broadcasting high school and collegiate sports, including two years doing radio for his hometown Grapevine Mustangs.

He is passionate about making patients feel comfortable and at ease, even before they walk through the door for their appointment. It’s his goal to make everyone feel like they belong at our family practice.

Mitch has a wonderful fiancé and loves spending time with her, cooking, going to sporting events, and playing golf in his spare time.


EMILY is a North Texas native. She grew up in North Richland Hills and graduated from Richland High School.

Her career in dentistry began after seeing her aunt enjoy her own career as a hygienist. From an early age, she encouraged Emily to get started in the industry.

In her free time, she enjoys spending time with her husband and wonderful daughter. Specifically, they love to travel together. Out of all the places to travel, Emily and her family specifically enjoy traveling to national parks.

She loves seeing the patients’ joy when they finally feel happy with their smiles, and she is proud to help every single one of them feel confident about financially prioritizing their oral health.


LAYNE was born and raised in Keller, Texas.

Her interest in dentistry began from personal experience in the chair. She graduated from TCC’s dental assisting school in 2016, and later furthered her training in Colorado as an expanded duties dental assistant.

Outside of the office, she enjoys spending her time with her husband, family, church, and soon-to-be first child.

She loves working with a team who all love to serve others and offering the best dental care to be our patients!


LIZ grew up in Dallas and graduated from Adamson High school. She went on to earn her RDA at a local Institute.

When she was a girl, she went to work with her cousin who worked in dentistry. She was amazed by the fun and fast paced environment, and she knew that was something she wanted to be a part of.

Liz enjoys her free time by working out, reading avidly, and spending time with her granddaughter.

Her favorite part of dentistry is educating the patients on their oral health and helping them feel comfortable during the entire process.


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