About Us

Welcome to the Endodontic practice of Dr. Mercedes S. Dominguez, D.D.S., an endodontic specialist with the American Association of Endodontists. Dr. Dominguez and her staff provide a high-quality, service-oriented, all-digital practice that maintains the highest professional and ethical standards. Our goal is to offer a friendly, relaxed and efficient atmosphere for our patients that both promotes caring and open communication between the patient and the doctor, as well as fosters enhanced patient education about endodontic (root canal) treatments.

For additional information, please don’t hesitate to call us directly at 972-556-2100.


Mercedes S. Dominguez, D.D.S., M.S

Dr. Mercedes S. Dominguez graduated from Universidad Complutense de Madrid, Spain in 1996. She practiced general dentistry for the next two years, while also completing a Certificate in Endodontics at the Universidad de Valencia, Spain in 1997. Her mentor, Dr. Rafael Miñana, one of the founders of the Spanish Association of Endodontics, encouraged her to continue her education in endodontics in the United States. In 1998 she moved to the United States (where she was born) and entered the endodontic program at the Baylor College of Dentistry, Dallas, TX, where she received both a Certificate of Endodontics and a Master of Science in 2001. Her master thesis “Histological, SEM and Immunohistochemical Assessment in Contemporary Pulp Therapy” was awarded First Place at the Tri-Dental Texas meeting in 2001.
Dr. Dominguez’s research was published in the Journal of Endodontics, published by the American Association of Endodontics. She has further published articles and spoken in conferences around the world. Dr. Dominguez was past president of the DFW Endodontic Metroplex Society from 2005-2008. She is an active member of several professional associations, including the American Association of Endodontics, the American Dental Association, the Texas Dental Association, the Dallas County Society, the DFW Metroplex Endodontic Society, and the Irving Dental Study Club. She was past president of the last two associations.
After working as an endodontic associate with another specialist, Dr. Dominguez decided to start her own endodontic practice (Las Colinas Endo) in 2003.

Dr. Dominguez lives in Las Colinas with her husband and three children. She is fluent in Spanish and French and has appeared in Texas Super Dentists 2010-2019. She has also been selected by her peers as one of “Dallas Best” Endodontists in the September issue of D Magazine for 2015-2018.


Christy Rodriguez, RDA/Office Manager

Christy has been with our practice since 2003. She brings with her 25 years of experience in the dental field. Christy is married to Jaime and has two boys Dakota and Anthony. Outside of work she is very involved with her boys baseball teams, even coaching from time to time. She enjoys spending time with her family and friends.

Desiree Madison, RDA

Desiree has been with our practice since 2003. She brings with her 16 years of experience in the dental field. Desiree has 4 boys Mike, AZ and twin boys Lorenzo and Aaron. Outside of work she enjoys spending time with her family and friends.

Melissa Munoz, RDA

Melissa has been with our practice since 2003. She brings with her 10 years of experience in the dental field. Melissa has one son, Isaiah. Outside of work Melissa enjoys spending time with her family and friends.