Orthodontic Dentistry

Providing Orthodontic Care To All Ages

Braces, Invisalign®, & Orthodontics | San Antonio Texas

Castroville Dental is your neighborhood general dentist and orthodontic office in Castroville, TX. We pride ourselves on providing quality orthodontic care for patients of all ages. We believe in dental care, not dental treatment, that is why our staff work with you to create a personalized care plan that allows you to have the healthy, radiant smile you desire. We go the extra mile to ensure that you are comfortable with your care plan every step of the way.


Schedule your free no-obligation consultation to achieve the smile of your dreams! Your complimentary consultation will give you the opportunity to discuss your unique care options as well as tour our state-of-the-art office. 


Latest Orthodontic Technology | Affordable Payment Plans | Care, Comfort & Convenience 


$100 Off Invisalign®

Up to $1000 Match On The Down Payment For Braces

Call us at (830) 355-0007 to learn more!

Comprehensive Orthodontic Treatment

Castroville Dental offers various types of orthodontic care and braces for kids, teens, and adults, which include traditional and clear braces, as well as Invisalign.


The most common type of braces, metal braces is made of high-quality and durable stainless steel. The brackets are bonded to the front of each tooth and connected by the archwire that guides the teeth into the correct positions.


  • For Children & Adults
  • Average Time Needed 18 – 24 Months


Ceramic braces are made of clear materials that are less visible on your teeth than metal braces. Due to their cosmetic appeal, they are most popular with teenagers and adult patients. However, while ceramic braces are more desired than other types of braces, they do require more overall maintenance.


  • For Children & Adults
  • Average Time Needed 18 – 24 Months
ceramic braces


Our most modernized orthodontic treatment, Invisalign® uses a series of invisible, removable aligners to straighten your teeth. The best part about these clear aligners is that they go unnoticed while wearing them. The aligners are comfortable and do not cause mouth abrasions that can sometimes occur with other metal options.


  • For Teens & Adults
  • Average Time Needed 6 – 12 Months

Schedule Your Appointment Today!

If you are ready to invest in a new smile,  schedule a FREE no-obligation consultation that includes an initial exam. Still not convinced about our practice or the care that we offer? Give us a call and our staff will be more than happy to get you the answers and information you need. We look forward to hearing from you and welcoming you to our dental family!

$100 OFF Invisalign

  • FREE no-obligation consultation
  • Includes necessary exam & x-rays

Up to $1,000 Braces Down Payment Match

  • FREE no-obligation consultation
  • Includes necessary exam & x-rays

Why you may need orthodontics

  • To correct a crossbite, crowding, open bite, overbite, underbite, protrusion, and spacing
  • Prevent or reduce further bone loss around teeth
  • Improve the ability of the dentist to restore missing teeth
  • Improve aesthetics for a better smile and facial appearance
  • Improve the function of teeth
  • Improve oral health by reducing the risk of gingivitis, abscess, periodontitis, and cavities

Dental braces for adults and children

  • Though braces are often associated with adolescents, more and more adults are opting to straighten their teeth. Orthodontic treatment is not simply aesthetic; misaligned teeth can impact the health of your teeth and gums and cause jaw pain. Moreover crowded or crooked teeth can be more difficult to brush and floss, allowing food particles and bacteria to accumulate. Children as young as age 11 can begin orthodontic treatment, and adults of every age can benefit from the correction of misaligned teeth or jaws. In fact, you are never too old to seek orthodontic treatment to straighten your smile and improve your health.

Our Orthodontist



Dr. David Gu has always been committed to putting his patients first and providing both the best patient experience and clinical care. Dr. Gu is an alumni of Harvard School of Dental Medicine in Boston, Massachusetts, and he also completed his specialty training in Orthodontics at the University of Washington in Seattle, Washington.

When he’s not working on giving patients a reason to smile, he loves finding new ways to combine his love for photography and traveling. Having lived in the Southeast, Northeast, and Northwest, he has been excited to call San Antonio home. He lives with his wife, who is a military dentist proudly serving the United States Air Force, and their two adopted shelter cats Merona and Beckham.


Patient Testimonials

Vance B.

“I have the best doctor! Dr. Su is excellent and I am glad that I found her! She and her staff are hospitable and caring. I am so grateful!”

Vance B.


The initial contact with staff is very friendly and helpful. Dr. Anny Su is very thorough in her diagnoses and includes the patient’s input into a treatment plan. My personal episode included a rather intensive situation that was perfectly assessed and treated by Dr. Su. Her friendly and professional attributes are outstanding. I highly recommend her and the staff and welcome them to the community. – Darrell Mabe


Mari T.

“Super friendly staff!!! Dr Su is amazing and very professional. Highly recommend Castroville Dental.”

Mari T.

Angie M.

“Great staff and Great doctor ! Always greeted with a warm smile !”

Angie M.

Laurenn S.

“Dr. Anny is the best super sweet, gives a good explanation on dental treatment needed. The staff and assistants are also very nice and friendly. The office is very clean. Recommended for sure.”

Laurenn S.

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