There are a lot of choices for dental offices in Austin, Texas. At NW Hills Dental and Orthodontics, we believe that once you meet our doctors and staff, you’ll feel we truly are the best place for you to get the treatment you need. Not only is our entire staff highly trained, but our doctors are respected, industry leaders. Your dental health can have a chain effect on the rest of your body’s system. Get help to stay on top of your dental health with some of the best team of doctors behind you.

Ronald Cass

Ronald B. Cass, DDS, FAGD, PLLC

Dr. Ronald Cass boasts years of excellence in dentistry and a litany of awards and recognition. He is both a Diplomat of the Academy of GP Orthodontics since 1991 and is now a board member as well. In 2001, he was named a Fellow of the Academy of General Dentistry. On top of this, he is also a Life Member of the American Dental Association. Texas Monthly Magazine even awarded him the Top Dentist in Texas Award.

Dr. Cass’ hometown is Dallas, Texas. He grew up in the North Oak Cliff neighborhood close to downtown. Graduating Sunset High School in 1964, he moved on to Baylor University in Waco, Texas. He graduated in 1968 with a BS degree. Then in 1972, he graduated from Baylor College of Dentistry (DDS) back in Dallas. He first decided to be a dentist in the eighth grade during career clinic visits and has always enjoyed meeting people and utilizing handcraft skills.

Because the Vietnam War was full-blown and ongoing when he entered dental school, Dr. Cass decided to serve in the military after graduation. The US Army needed a dentist. He spent six years in active duty, advancing in rank from Captain to Lt. Colonel. Dr. Cass served in Virginia, Colorado, and South Korea. But, Texas called him home.

Austin has been Dr. Cass’ home since 1978 when he bought the NW Hills dental office building at 7011 Hart Lane. He has been happily married since 1982 and is blessed with three sons.

Ongoing volunteering community service has been a hallmark of his years in practice through the Downtown Austin Kiwanis International Club. With so many people in need in the community, Dr. Cass strives to serve others to improve their worth and wellbeing.

Shria Dhaon, DDS

Every time you smile at someone, it is an action of love, a gift to a person, a beautiful thing.” – Mother Teresa

My Mission

Dentistry is a dynamic profession, driven by advancements in diverse fields, such as materials, diagnostics, genetics, and informatics. I look forward to mastering all advancements in dentistry to provide a complete and confident smile to patients. I am committed to continuing education in order to remain knowledgeable with state-of-the-art technology, procedures, and materials in dentistry.


  • Bachelor of Dental Surgery – Sri Ramachandra University, Chennai, India
  • Residency in Prosthodontics – Santosh Dental College and Hospital, Ghaziabad, India
  • Doctorate of Dental Surgery – University of Southern California Herman Ostrow School of Dentistry, Los Angeles, CA

Continuing Education & Professional Memberships

  • Texas Dental Association
  • American Dental Association

Life & Hobbies

Dr. Dhaon is originally from New Delhi, India. She obtained her Doctorate of Dental Surgery from Herman Ostrow School of Dentistry of USC in Los Angeles, California. Prior to coming to the United States, Dr. Dhaon successfully completed her residency in prosthodontics from India. At USC, she excelled in oral surgery, cosmetic and restorative dentistry.

After graduation, Dr. Dhaon moved to Austin, Texas, to join her husband and their dog, Rupert. Dentistry is her passion, and she’s excited to work and apply all of her past experiences to bringing perfect smiles to her patients. When Dr. Dhaon is not working, she keeps her adrenalin going by hiking, traveling around the world, enjoying different cuisines, and scuba diving. Yes, she gets a kick out of immersing herself in the mysteries and adventures of the deep sea with her husband!

Coming from a family with three generations of doctors, Dr. Dhaon has grown up seeing her father and grandfather work to improve community health. She keeps her family legacy going by volunteering in dental clinics around the Austin community.

Make an Appointment with NW Hills Today!

The best way to tell how you’ll feel in the NW Hills dental office is to meet our doctors. Once you do, we’re sure that you will enjoy our atmosphere and feel. Our patients can feel welcome and comfortable during their treatment. Give us a call at 512.866.2022 today to set up your first appointment!