The root of your smile!

From the time you first walk in the door, your successful treatment is our top priority. Periodontal health is the foundation for your smile, and our chosen specialty is maintaining that foundation. Learn why our periodontal dentists offer the very best non-surgical and surgical care available in San Antonio.

Our Periodontist

Dr. Mylinh Duong


Dr. Mylinh Duong is a Texas trained periodontist. She graduated with a B.S. in Biology with Summa Cum Laude from University of Texas at San Antonio. She earned her Doctor of Dental Surgery degree, Certificate in Periodontics, and a Master of Science in Dental Science from the prestigious University of Texas Health Science Center at San Antonio. Upon completion of her dental degree, Dr. Duong was elected to become a member of Omicron Kappa Upsilon National Dental Honor Society. Dr. Duong is a Diplomate of the American Board of Periodontology; Board Certified in Periodontology and Dental Implant Surgery.

Dr. Duong strongly believes her patients deserve the very best care for the health of their teeth, gums and bone. She is a caring person who gives special attention to her patients’ comfort throughout procedures with the help of sedation and highly skilled techniques. 

Dr. Duong is involved with multiple professional organization, including the American Dental Association (ADA), the American Academy of Periodontology (AAP), the Southwest Society of Periodontists (SWSP), the Texas Dental Association (TDA) and the Academy of General Dentistry. 

Dr. Duong practiced in a multi-specialty dental practice in Dallas area before moving back to San Antonio. 

Dr. Duong is bilingual and is proficient in English and Vietnamese. In her free time, she enjoys cooking, travelling, and spending time with her husband and her beautiful daughter, Grace.

Our Periodontal Staff

| South Texas Periodontal Associates



Having started my dental hygiene career at the age of 20, I have had a very diversified journey throughout the years. I have worked in just about every setting that is available in dentistry, including all institutions and specialty clinics. I have always been interested in the periodontal aspect of dentistry and have therefore worked in that capacity as often as possible. My desire to be engaged with periodontal patients therefore lead me to work here at South Texas Periodontal Associates 16 years ago.

I enjoy my patients here, while teaching them the many ways of achieving optimum periodontal and overall oral health. I am also fond of my South Texas Periodontal Associates Family.

I am currently transitioning to “City Life” from rural living and finding I am enjoying the many amenities available to me.



Graciela “Gracie” Yzaguirre was born and raised in South Texas located near the Gulf of Mexico. Shortly after high school, Gracie began her career in the dental field holding positions from receptionist, medical billing and ultimately dental assisting when she realized that she wanted to become a hygienist. Her passion in the dental field led her to attend Texas State Technical College in Harlingen, Texas where she earned her degree in dental hygiene.

After earning her degree, she began working for two local dental practices. A periodontist office where she worked as a hygienist on some of South Texas’ toughest dental cases and a pediatric dental practice. With over 26 years in the dental field and 16 years as a hygienist, she is now in San Antonio, Texas.

Gracie moved to San Antonio with her husband, Eric, and their youngest son. She also has two older boys who have started their own families. While not at work, you can probably find Gracie reading, walking on the beach, and traveling. Gracie is bilingual (Spanish) and prides herself on a strong work ethic, a trait she received from her parents.


Insurance Coordinator

Melissa has been working front office, treatment planning and verifying insurances since 2017. She completed her schooling at Concorde Career College in 2016 and has assisted in both general and periodontal practices. She transitioned from assisting to working in the front office. What she loves most about her position is being able to help patients understand their insurance coverages and making patients feel better about their smiles.

She was raised in Ganado and Victoria, Texas. When she is not working, she loves spending time with her family and her Shih-Tzu’s Sheldon, Leonard and Penny. She is also a huge fan of the Dallas Cowboys.


Lead Dental Assistant

Megan started as a dental assistant in New Mexico in 2014. She graduated from The College of Health Care Profession. Megan has been fortunate to work in several aspects of dentistry and in doing so has gained a wide array of knowledge along the way. Meeting patients and seeing how amazing they look and feel after appointment is what she most loves about her job.

She was raised in Truth or Consequences, New Mexico with her family whom she loves spending time with. She also loves to travel, play volleyball, ride horses, attend concerts in her free time and is a huge fan of the Red Sox and the Dallas Cowboys.




Surgical Dental Assistant

Esmi started her dental career in 2015 as a dental assistant. She was born and raised here in San Antonio, Texas. Esmi is working to advance her dental career by becoming a dental hygienist. She is kind a compassionate to our patients’ needs.


Treatment Plan Coordinator

Trisha has been in the dental field for 25 years, starting at the front desk answering phones to chair side assisting and back being in the front office as treatment coordinator. She enjoys helping people understand their dental treatments and bringing smiles to their faces again. She is a mother to 4 daughters. Trisha enjoys crafting with a passion, not just to create things but to be able to zone out and be in her own little world.



Hygiene Assistant

Monisha was born and raised in San Antonio, Texas. She started her dental career as a dental assistant after finishing her training at University of Incarnate Word’s dental assistant program. She is enjoying her job and making the best of it to help the hygienists and make the patients comfortable. While not at work, she spends a lot of time with her daughter, Ashlynn.



Front Office/ Patient Coordinator

Elizabeth is a native of Monterey Park, California and calls Texas her home after being here for over a decade. She knew she wanted to dedicate herself to a healthcare profession to make a difference in people’s lives. Ever since moving from to San Antonio, Elizabeth has been able to spend more time with her family! She is an avid traveler and enjoys going to concerts with her family and friends. While balancing her work and family life, she still fulfils her promises to her patients to provide exceptional care, with emphasis on patient’s comfortability and clinical success.


Our periodontal dentists use the latest dental care technology and procedures to minimize discomfort and maximize results. If you’re looking for the very best dental care available in San Antonio, Texas, call us today.