Meet Our Team

Rocio Estrada staff photo

Registered Dental Hygienist

Rocio was born and raised in Dallas, attended Dallas public schools, and graduated from Skyline High School in East Dallas. She obtained her associate’s degree in science from Richland College.

Rocio began dreaming of becoming a dental hygienist at the age of 13. She fulfilled her dream by obtaining her Bachelor of Science in dental hygiene from Texas A&M College of Dentistry. Rocio brings new meaning to “living the dream” as a dental hygienist registered by the Texas State Board of Dental Examiners. She is certified in CPR, nitrous oxide, and pit and fissure sealants, is fluent in Spanish, and pursues continuing education in order to maintain knowledge and skill in all aspects of dentistry.

Rocio lives in East Dallas. In her spare time, she follows her favorite sports team—“HER” Dallas Cowboys—loves to travel, enjoys swimming, and spends time with her family and friends.


Lacey Mattisonstaff photo

Registered Dental Hygienist

Lacey was born and raised in Tulsa. She attended the University of Oklahoma, where she received her Bachelor of Science in dental hygiene. After graduation, Lacey moved back to Tulsa to join her family and begin her career. After much thought and consideration, Lacey decided to move to Dallas in the spring of 2015.

Lacey currently holds active dental hygiene licenses in both Texas and Oklahoma. She holds a CPR certification from the American Heart Association, is certified in nitrous oxide by the Texas State Board of Dental Examiners and by the Oklahoma Board of Dentistry, and is licensed in the administration of local anesthesia in Oklahoma. She pursues continuing education in order to maintain knowledge and skill in all facets of dentistry. Lacey has a passion for connecting with each patient on a personal level. She strives to provide thorough care with a gentle touch, which makes her patients feel comfortable and at ease.

In her free time, Lacey enjoys cheering on the Oklahoma Sooners, going to Lake Tenkiller for the weekend, spending time with friends and family, and spoiling her nephew.


Adrienne Lopezstaff photo

Registered Dental Assistant

Adrienne was born into an army family in Killeen. She grew up in San Antonio, moved to the Dallas area, and attended the University of North Texas. She and her family have made North Texas their home for more than 20 years.

Adrienne graduated from the Collin County Dental Assisting Program and thereafter obtained her Texas Registered Dental Assistant license. Adrienne has been trained in four-handed instrument transfer, X-rays, and the use of materials and instruments used in endodontics, restorative, crown and bridge, and surgery.

Adrienne lives in East Dallas. In her spare time, she enjoys reading, photography, and knitting.


Melissa Leosstaff photo

Treatment Manager

Melissa was born in Dallas and divided her younger years between Texas and Florida. As a young adult, she moved back to Texas to start her family.

Melissa has been in the dental field for 15 years and performs various front office roles such as office manager, treatment/insurance/hygiene coordinator, and payroll administrator. She pursues continuing education in the critical field of dental insurance so she can help our patients maximize their benefits and contain costs on their treatment plans. We are proud to have Melissa and her vast knowledge of dental office operations on our team.

Melissa lives with her family in Mesquite. When she is not shuttling her children to soccer, music lessons, or school activities, Melissa enjoys traveling, reading, watching movies, and listening to country music.


LaJoyce Cannonstaff photo

Office Manager

LaJoyce was born and raised in the East Texas community of Alba-Golden. When she was 12 years old, she moved to Dallas, attended Dallas schools, and graduated from Woodrow Wilson High School. She has made East Dallas her home for 65 years.

LaJoyce was employed by the Dallas Independent School District for 29 years. Her career with DISD began as secretary to the principal at J.L. Long Middle School in East Dallas. Later she transferred to Bryan Adams High School as the office manager and worked there until she was selected as the office manager for one of the area superintendents. After retirement, she worked part-time auditing activity funds for all the elementary schools in DISD.

LaJoyce and her husband of 63 years share their time between their home in East Dallas and their farm in Golden. Her hobbies include spoiling her five grandchildren and one great-grandchild, reading, quilting, gardening, traveling, and enjoying family and friends.


Cindi Coxstaff photo

Office Coordinator

Cindi Cox was born and raised in Dallas, and serves as our office coordinator maintaining our website, enhancing our social media presence through Facebook and Healthgrades, and supporting our office manager in running the front office.

Cindi is a proud graduate of Skyline High School in East Dallas and attended Lone Star College-Montgomery Campus. She has obtained her certifications in accounting and human resources. Cindi has more than 17 years of experience in office and accounting management, most notably at ADP, White Rock/Katy Trail Weekly, and Total Compression Systems.

Cindi lives in East Dallas, and in her spare time, enjoys traveling, playing golf, and spending time with her grandson.


William Whitleystaff photo

Office Intern

William Whitley was born and raised in Dallas and has served as our summer/winter break intern since 2012. William assists our front office staff by answering phones, scheduling appointments, confirming patients, and processing claims/patient payments.

William attended First Baptist Academy in downtown Dallas through seventh grade, then transferred to Prestonwood Christian Academy in Plano in 2014. William is beginning his sophomore year at PCA, is a 4.0 student, plays the clarinet in the PCA P.R.I.D.E. Lion Marching Band, and is a member of the Mock Trial Team, Future Problem Solver, and the Student Leadership Institute.

William lives in East Dallas. In his spare time, he enjoys traveling, watching TV, playing his clarinet, and spending time with his family and friends.

  • “Dr. Bill is the best dentist ever! He is super nice and never makes my teeth hurt. He should really help all the kids when their teeth have booboos.”

    – Laci L. (5 years old)

  • “Dr. Whitley has always been honest, friendly and compassionate about what he does! He has on more than one occasion stayed after hours to help one of my family members out.”

    – Rick & Kelli L.

  • “Dr. Whitley and his staff quickly earned my trust. From the first moment I walked into their office, I was blessed with a sense of security and confidence that I would be well taken care of.”

    – Susan M.

  • “I just got my teeth cleaned by the most wonderful dentist ever! All the staff is super courteous and genuine.”

    – Luci L.

  • “We love the team at Whitley dental clinic! Dr. Whitley was my son Jake’s (6) first experience with a dentist, now he looks forward to going back each time.”

    – The Cullen Family