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    • 01 Braces
      • Types of Braces
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    • 02 Clear Aligners
      • About Clear Aligners
      • Clear Aligners for Kids
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      • Clear Aligners FAQ
    • 03 Other Treatments
      • Two-Phase Treatment
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  • Our Practice
    • Who We Are
    • What Sets Us Apart
    • Meet Our Team
    • Our Technology
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    • Patient Reviews
  • Orthodontics
    • Braces
      • Types of Braces
      • Braces For Kids
      • Braces For Teens
      • Braces For Adults
      • Braces FAQ
      • Color My Braces
    • Clear Aligners
      • About Clear Aligners
      • Clear Aligners For Kids
      • Clear Aligners for Teens
      • Clear Aligners for Adults
      • Clear Aligners FAQ
    • Other Treatments
      • Two-Phase Treatment
      • Dentofacial Orthopedics
      • Pre-Surgical Orthodontics
      • TMJ/TMD Treatment
      • Sleep Apnea Treatment
      • Cleft Lip & Palate Cases
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      • Custom Mouthguards
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Our Practice

Leading The Bay Area In Orthodontics

our practice

What Sets Us Apart

Board-Certified & Experienced

As an experienced practice, we know what it takes to do orthodontic treatment right and get the best results. We also love to have fun, because who doesn’t love smiling?!

  • Great Office Location
  • Board-Certified Doctor
  • Advanced Technology
  • Convenient Treatments
See what sets us apart
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Your orthodontist

Crafting Confident & Healthy Smiles

Led by the best, our practice is built on a foundation of trust, innovation, and a patient-first approach that transforms smiles and lives.

24+

Years Experience

Susan S. So

DMD MMSC

Dr. Susan So is a caring, gentle, and experienced orthodontist, and has been practicing dentistry and orthodontics for more than 24 years!

Meet Dr. so

Our Team

Get To Know Us

Our awesome team is here to ensure every visit is the highlight of your day. Enhancing your smile is exciting, and we love being a part of it!

meet our team

Our technology

Advanced Care

To best serve you, we use only the most advanced technology and treatment techniques to ensure more accurate results and a comfortable and seamless orthodontic experience.

iTero Scanner

iTero Scanner

The iTero Scanner allows us to create a 3D image of your teeth and mouth to assist in building a customized treatment plan for each patient.

Smile simulator

Smile Simulator

This tool takes the 3D model created by the iTero Scanner and simulates how your smile will change through various stages of orthodontic treatment.

Digital X-Rays

Digital radiographs are a safer and more comfortable option for our patients, allowing us to diagnose and treat orthodontic problems more accurately.

explore our technology

Refer a patient

Know someone who is looking for an orthodontic team to transform their smile? Feel free to send them our way and we’ll reach out to help them get started with their initial consultation.

  • Free Initial Consultation
  • Conveniently Located
  • Board-Certified Doctor
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Get Started On Your New Smile Today

Why wait to get started on your dream smile when our process is seamless, effective, and fun! We can’t wait to meet you!

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Our Reviews

Experience 5-Star Care

Don’t just take our word for it! Check out some of our awesome 5-star reviews from so many of our happy patients over the years.

Reviews
TheCains
We have had a great experience with the staff at Castro Valley Orthodontics.
Response from the owner:Thank you for your wonderful feedback! We're thrilled to hear you had a great experience with our staff. We look forward to continuing to provide exceptional orthodontic care for you.
Mel S.
Simply the best. Kind, efficient, helpful and so very knowledgeable. My whole family has been there for treatment. Highly recommend.
Response from the owner:Thank you so much for your wonderful review, Mel! We are thrilled to hear that you and your family had such a positive experience with us. Your recommendation means a lot to us, and we look forward to continuing to provide excellent care!
Thuan D.
I highly recommend Dr. So and the team at CV Orthodontics for their outstanding service and care. From my initial consultation to creating a personalized treatment and payment plan, every step was seamless and stress-free.

After visiting several orthodontic offices, I'm glad I chose Dr. So's team. They consistently demonstrated exceptional courtesy and attentiveness to my needs, making me feel valued and supported throughout my journey.
Response from the owner:Thank you for your wonderful review, Thuan! We're thrilled to hear that you had such a positive experience with Dr. So and our team. Your satisfaction is our top priority, and it's great to know that we could make your journey seamless and stress-free. We appreciate your recommendation and look forward to continuing to support you!
Natacha J.
Dr So’s office is really efficient. I appreciate the text reminders, the self-check in and the welcoming atmosphere. Even though there are a lot of assistants on deck (I am basing this assumption on the youthful appearance of the employees), she always makes a point to avail herself when necessary.

The office is closed on Friday. While inconvenient, I appreciate the commitment to work/life balance.
Response from the owner:Thank you for your kind words! Your vote of confidence in our practice is why we do what we do!
Daisy Parra S.
Everyone in the office was very polite and informative since our very first appointment. The dental assistants did an excellent job in explaining everything to my daughter She walked out of the office with a smile A very pleasant experience Thank You
Response from the owner:Thank you for your wonderful review, Daisy! We are thrilled to hear that you and your daughter had a pleasant experience with our team. Our goal is to make every visit positive and informative. We appreciate your kind words!
Phuong V.
I recently completed my orthodontic treatment with Dr. So Orthodontic. I wanted to share my experience and why I think Dr. So is an exceptional choice for anyone considering orthodontic treatment.

From the very first consultation, I was impressed by Dr. So’s approach. Orthodontic treatment can feel daunting, but their gentleness and patient care stood out immediately. Dr. So took the time to explain all my options in detail, making sure I understood each step of the process. This level of care and communication was consistent throughout my treatment.

What truly sets Dr. So apart is their profound knowledge and expertise. They're not just about straightening teeth, they take a comprehensive approach to orthodontics, considering facial aesthetics, jaw alignment, and most of all your overall looks. It was clear to me that I was in the hands of a professional who is deeply passionate about delivering the best outcomes for their patients.

My results speak for themselves. I am thrilled with the transformation and the confidence my new smile has given me. But beyond the results, it was the journey that made my experience so positive. Knowing I was in gentle and knowledgeable hands made all the difference.

If you're looking for an orthodontist who combines expert care with a compassionate approach, I highly recommend Dr. So. They have not only transformed my smile but made the entire process a truly positive experience. Thank you, Dr. So, and all of your wonderful staff for the exceptional care and for giving me a smile that I'm proud to show off.
Response from the owner:Thank you so for your amazing review! We are so excited about your new smile and so happy that the journey was a pleasant experience!
Reviews

Our locations

Come Visit Us

Have more questions? We would love to give you a tour of our Castro Valley office, so come by and see us!

Location

Castro Valley

  • 20406 Redwood Rd. Ste. F
    Castro Valley, CA 94546

Call / Text

New Patients
  • (510) 536-6693
  • (510) 536-6693
Existing Patients
  • (510) 537-4900
  • (510) 571-4399

Contact Hours

Monday 8:00am – 5:00pm
Tuesday 8:00am – 5:00pm
Wednesday 7:30am – 5:00pm
Thursday 8:00am – 5:00pm
Friday 8:00am – 5:00pm

Castro Valley, CA

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