Meet Our Team

  • April Allen
    Office Manager

    April has over 25 years of dental experience. With her background in chairside assisting, she has additional strengths in understanding treatments, scheduling, and making each appointment special. From explaining confusing dental insurance benefits to accommodating a patient’s busy schedule, she takes pride in helping everyone feel as comfortable as possible. April loves traveling with her husband, fishing and watching the Saints and Astros play ball

  • Jeannine Rizzo

    Jeannine has been with Dr. Tjoa since 2005 and has been in the dental field as a registered dental assistant since 1992. She has been working with Cerec technology since 1999. Personally, Jeannine stays busy with her daughter, Lilly, and enjoys playing golf; going to live music venues, dinner, and movies.

  • Richard Duong

    Richard has a Bachelors in biochemistry at University of Houston and a Masters in biomedical sciences at UT MD Anderson as well as a Bachelors in dental hygiene at UT School of Dentistry in Houston.  In his spare time, he manages and acquires investment properties

  • Holly Wimberley

    Holly started in dentistry as a dental assistant before becoming a registered dental hygienist. She has been in the dental industry since 1992. She is also a former patient of Dr. Tjoa’s office and a resident of the West University area.

    Outside of dentistry, Holly spends time with her family as a wife and mother of four; Jessica, Kate, Matthew, and JJ. She also spent years as a competitive figure skater.

  • Sabrina Lopez

    Sabrina is originally from Dickinson, Texas and graduated from the University of Texas Dental Branch in 2001. She is certified with the Institute of Advanced Laser Dentistry, which specializes her in providing patients laser therapy for periodontal disease, treatment of fever blisters and reducing pain from mouth ulcers.

    Sabrina prides herself in providing excellent care, helping educate patients to achieve optimum dental health and is dedicated to pursuing the latest technology through continuing education including the Academy of Clinical Technology’s Operative Endo and Perio and Advanced Laser Training courses.

    In her free time, Sabrina is an avid runner, who competes in many marathons. She enjoys spending quality time with her friends, family and love of her life, her Miniature Pinscher, Honey.

  • Melissa Reding-Banks

    Melissa proudly served our country in the U.S. Army as a Psychiatric Specialist and then continued to serve in the Michigan Army National Guard.  She then graduated in 2010 from Lansing Community College Dental Hygiene Program in Lansing, Michigan.  In her spare time, she enjoys gardening and home improvement projects and spending time with family and friends.

  • Pamela Madigan

    Pamela graduated from Asheville-Buncombe Technical Community College with an Associates in Dental Hygiene in 2012. In her free time, she enjoys spending time with her family and her fur babies

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BRSH Dental


Every Third Monday of the Month


7:00 am-7:00 pm


7:00 am-7:00 pm


7:00 am-7:00 pm