Karina W. Marr, DDS


Dr. Marr earned her Doctor of Dental Surgery degree from Baylor University, holds a Pediatric Dental Certificate from Children’s National Medical Center (Washington, D.C.), and completed a BS in Psychology from Texas A&M University. She started Pediatric Dental Care at Casa Linda in 2013 as our board-certified pediatric dentist, practicing dentistry through a philosophy focused on educating patients and parents. She strives to create positive experiences for her patients so they will value oral health as they continue to grow up. Her patients love that she is patient and great with kids, and has a unique combination of firmness and compassion. Regarding her patients, Dr. Marr loves the honesty of children and that there is never a dull moment when working with them. She is an attending faculty member at Baylor College of Dentistry and Children’s Medical Center Pediatric Dental Department. She is also an active participant in charity work, volunteering her services with Free Sealant Day, is the recipient of Child Magazine “Mom Approved Pediatric Dentist” Award for 2013-2021, D Magazine Best Dentist s 2018-2021, and is a member of the following organizations:

  • American Academy of Pediatric Dentistry
  • American Board of Pediatric Dentistry – Board Certified Diplomate
  • American Dental Association (ADA)
  • Dallas Asian Dental Society
  • Dallas County Dental Society (DCDS)
  • Greater Dallas Pediatric Dental Society
  • Texas Academy of Pediatric Dentistry
  • Texas Dental Association (TDA)

Outside of work, Dr. Marr spends quality time with her husband, Peter, and their children, Olivia and Deacon. She also enjoys running, biking, reading, and considers herself a bit of a foodie.


Anna Seo DDS, MSc


Dr. Anna H. Seo is a board-certified pediatric dentist and an adjunct Assistant Professor for the Department of Pediatric Dentistry at the Baylor College of Dentistry.

Dr. Seo was born in Seoul, Korea, and grew up in West Bloomfield, MI. She went to college at the University of Michigan, double majoring in biology and Japanese studies. Upon graduating with her dental degree at the University of Michigan School Of Dentistry, she completed a general practice residency in the Catholic Medical Center in New York City.

She married and moved to Toronto, Canada, where she completed a pediatric dental training and the Master of Science degree at the University of Toronto. She worked as an associate pediatric dentist for private practices and as a clinical faculty member, teaching at the University Of Toronto Faculty Of Dentistry and Texas A&M College of Dentistry.

Her family then moved to Tampa, FL, where she worked as an associate pediatric dentist and had an appointment at the University Of Florida College Of Dentistry.  Dr. Seo had a solo pediatric dental practice in Wesley Chapel, FL, before moving to Dallas, TX.

Dr. Seo is a member of the College of Diplomats of the American Board of Pediatric Dentistry, and a Fellow member of the American Academy of Pediatric Dentistry. Other memberships include:

  • American Dental Association
  • Dallas County Dental Association
  • Greater Dallas Pediatric Dental Society
  • Southwestern Society of Pediatric Dentistry
  • Texas Academy of Pediatric Dentistry

She is the mother of two daughters and her family enjoys living in Dallas. In her free time, Dr. Seo likes to practice Taekwondo martial arts, walk her dog, and enjoy the outdoors with her family.


C. Ashley Orynich DMD, MPA, MS


Dr. Ashley Orynich is a Board Certified Pediatric Dentist who is dedicated to providing children and families with the highest quality of safety and care. She earned her Bachelor of Science degree from the University of Florida, a Master of Public Administration degree from Harvard University’s John F. Kennedy School of Government, and her Doctor of Dental Medicine (D.M.D.) degree from the Harvard School of Dental Medicine. She completed her post-doctoral pediatric dentistry training at the Texas A&M University Baylor College of Dentistry, where she was the national American Academy of Pediatric Dentistry Samuel D. Harris Health Research and Policy Fellow and completed an additional Master in Oral Science with a thesis on national policies affecting children.

Dr. Orynich loves working with children and will forever be a child at heart. She aims to serve children tenderly through purposeful care and education. Dr. Orynich enjoys time with loved ones, singing, dancing and the ocean.

Schedule Your Child’s Dental Appointment

We provide a comprehensive selection of children’s dental treatments at Pediatric Dental Care at Casa Linda. To learn more, or to schedule a visit, contact our office at 214-321-4880. We proudly welcome patients from Dallas, TX, and all surrounding communities, including Garland, Mesquite, Richardson, and more.