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Tri-Valley Orthodontics, Dr. Jesse Ko & Dr. Anne Yoon
Our practice philosophy is centered on providing patient-centered, doctor-delivered conservative orthodontic care. With Dr. Jesse Ko & Dr. Anne Yoon, both Orthodontists, working together - our Doctor to Dental Assistant ratio sets our office apart from the rest. We are hands-on throughout your treatment ensuring meticulous quality control & excellent results.

We provide Comprehensive & Limited Orthodontic Treatment for Children, Teens & Adults. We're known for our conservative, straightforward & comprehensive approach to orthodontics. We consider every detail to create your final smile - from your airway & occlusion to your dental/gingival health & TMJ.
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Dr. Jesse Ko was born in South Korea and grew up in the Bay Area. He graduated from Mills High School and completed his Bachelors in Science and Masters degree in 1999 at the U.C. Berkeley School of Engineering. He worked as an engineer in the Bay Area for several years before deciding to pursue a career in dentistry.
Braces use constant, gentle pressure, which over time, move teeth into their proper positions. Your braces are at work every moment of your orthodontic treatment. The two main components of your braces are - the metal brackets that are placed on your teeth and the main archwire that connects them. Each bracket is secured to the connecting wire with rubber bands which we'll change for you each month.
Dr. Yoon received her Doctorate in Dental Surgery from the UCLA School of Dentistry(2006) and completed her Orthodontics Specialty Certificate & Masters in Oral Biology at the Loma Linda University Graduate Orthodontics & Dentofacial Orthopedics Program (2008).

Her undergraduate training also began at UCLA where she majored in Molecular Cell & Developmental Biology (1998-2000), and she completed her Bachelors in Science in Biology from Pacific Union College in Angwin, CA (2002).Dr. Yoon has been practicing orthodontics since 2006, providing orthodontic care for children, teens & adults.
While you wait to be seen, please enjoy our complimentary hot coffee, tea and water cooler. We also have a lending library with some of our favorite books for you to check out, just like a library. You'll pass through the beautiful atrium of the Deerwood buildling where we frequently like to go for some fresh air & to relax!.
The temporal mandibular joint is closely integrated with occlusion (bite) and thus orthodontics. Improper bite over the long-term can contribute to temporal mandibular dysfunction (TMD) with symptoms such as clenching/grinding, jaw & facial muscle pain, clicking/popping of the TMJ, locking etc. A CBCT Image allows us to see the temporal mandibular join in 3 dimensions and accurately diagnose & treat TMD in conjunction with the occlusion or bite.
Reviews (21)
Sam C.
Sam C.
Oct 18, 2021
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I need to first start by saying that I am not always the easiest person to deal with. I am usually running late, dealing with too many things, and pretty busy like most people. I also tend to have very high expectations. So this doesn't always set health care providers up for success with me.

With that being said, my wife and I decided to get braces together. Yes, grown adults with kids, getting braces much later in life. We were referred to Dr. Ko and his team and went for a consultation and made the decision to move forward with using them for our orthodontic care.

Dr. Ko and
Annette S.
Annette S.
Sep 08, 2021
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I've been waiting to post my review but I really should of done it sooner. Dr. Ko and Dr. Yoon are exceptionally kind, hard working orthodontics. They have built a wonderful team who truly make you feel like family. They are so good that I drive 3 hours away because I felt I was going to get the best and highest quality treatment, as well as results.
I'm so glad I was referred to Dr. Ko! I appreciate his honesty and his professionalism. He's results driven and managed to straighten out a 4 year problem I had. He helped restore my smile and I'm beyond happy to smile confidently
Salama H.
Salama H.
Jun 09, 2021
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Highly recommend Dr. Yoon, she will dedicate all her effort and provide her best professional advice just for your own interest.
Khewy Chewy
Khewy Chewy
Mar 16, 2021
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The entire experience was extremely friendly and professional, each patient seemed like they were cared for individually and Dr. Ko knew everyone personally. The atmosphere was safe and clean. Would highly recommend.
Danielle T.
Danielle T.
Jan 14, 2021
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I LOVE Tri-Valley Orthodontics! I travel from Richmond in traffic for my appointments, and I look forward to going. From the time I walk in the door the staff members bring a smile to my face with their friendliness. I always feel like the ENTIRE office is happy to see me. The ladies in the back keep me laughing and they're so on point with their jobs! What can I say about Dr. Ko...Oh my goodness...I love me some Dr. Ko!! He's HILARIOUS, always makes you feel comfortable and such an amazing Doctor. I worked with Dr. Yoon once and she's so gentle and sweet. I would HIGHLY recommend
Dave Duncan
Dave Duncan
Dec 10, 2020
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Drs. Ko and Yoon have been masterfully handling our daughter's orthodontic care for the last 2 years. They recommended a much less aggressive treatment plan than the other providers we initially interviewed, resulting in a much more relaxed and MUCH more tolerable plan of action that absolutely made the most sense for her issues. As someone who had braces 3 times throughout my life I dreaded any trip to my orthodontist, and can happily say my daughter has no such feeling when I take her to Tri-Valley. It's like going to a casual party with friends every time we go, the providers and staff are simply
Jongkwan Kim
Jongkwan Kim
Dec 08, 2020
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Strongly recommend if your kid need a orthodontist. Always clean and welcome. My two boys are doing processes and working well.
Michaela K.
Michaela K.
Nov 03, 2020
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I am so happy and impressed with the decision to get my teeth straightened at Tri-Valley Orthodontics. I was initially pleased after the consultation, the doctors (husband and wife) were patient and explained everything without feeling pushy. They wanted to know what I wanted to see and they also told me what they, as professionals, knew what needed to be done. The office is bright and clean, with state of the art technology. I decided to invest with them and start Invisalign. Fast forward to the end of my treatment, the pandemic has been underway. My husband is high risk so we haven't ventured
Karen H.
Karen H.
Aug 05, 2020
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With 3 boys, it was so important to find the right Orthodontist for their Oral Health and Care. After meeting Dr Ko for an Initial consultation for our Oldest son, we were extremely impressed with how Dr Ko can see beyond just the Orthodontics treatment. He took the time and really looked at the overall health of the Patient and was able give us his honest feedback on what we can do to make things better. He pinpointed the reasons why our son has the constant Dry Lips and gave us tips on how to correct it. I believe he went above and beyond as he cares about each Patient. Having Dr Yoon at this
Michael Mccoy
Michael Mccoy
Aug 03, 2020
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Their orthodontic practice is impressive. I am continually surprised by the effort all their staff puts into creating an excellent patient experience. Both Dr Ko and Dr Yoon care so much about their patients. They have a really great Orthodontic practice. I can not rate them highly enough
Eshari Wijesekera
Eshari Wijesekera
Jul 12, 2020
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If you are looking for an amazing orthodontist, I highly recommend Tri-Valley Orthodontics in San Ramon.
Dr. Ko and Dr. Yoon are great orthodontists. My 11 year old daughter is in the process of getting her second phase of braces. And my husband is currently getting his Invisalign treatment. So far the experience has been truly amazing.
They genuinely care about you. Their quality of work, the attention to detail, scheduling of appointments, quick response to messages, and their after care and follow up is exceptionally excellent. Great customer service, and the whole office team is great too
Sweta R.
Sweta R.
Mar 06, 2020
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Had a great experience from first to last, the entire staff is very friendly and caring. I never had to wait during my appointments, they were ready to see me as I walked in. The Drs. are very experienced. Office is very bright and clean, they have all the latest medical equipments. I had crowding and now its all aligned perfectly.
Highly recommend. Go schedule a free consultation appointment.
Matthew Benabou
Matthew Benabou
Nov 12, 2019
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We chose to go with Dr.Ko and Dr. Yoon for orthodontic treatment for our two boys and we couldn't be happier with our choice. The office itself is open and inviting, and the staff carries that atmosphere throughout the office. We were always greeted by name, welcomed into the back on time and both orthodontists spent quality time with us, showing not just patience with our questions, but actually getting to know us. What was most impressive was that both our boys followed the original treatment plan set by Dr. Ko, start to finish, no interruptions or deviations, and their braces were removed exactly
Danette Lizardo
Danette Lizardo
Jun 17, 2019
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Couldn’t be more happier! I received an exceptional treatment from Dr. Ko. The staff is amazing. You feel the care and responsiveness of everyone and utmost intention to create a positive experience in their practice. Thank you for being in our community.
Jin Yoo
Jin Yoo
May 30, 2019
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My family likes the entire staffs in this practice! The facility itself is very clean, nice, and modern. The staff is absolutely friendly, accommodating, understanding, and courteous. Dr. Ko and Dr. Yoon are also very attentive, competent, knowledgeable and professional. My two sons have been undergoing orthodontic treatment in this facility since 2016 and the process of scheduling appointments, treatment is extremely seamless and the quality of work and follow up after care, including attention to details, is very excellent. I really recommend Tri-Valley Orthodontics!
Angela C.
Angela C.
Apr 20, 2019
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WOW!

Referred to Dr. Yoon for her specialty of lingual braces (behind the teeth) and I am so glad!

I had some minor movement after having braces as a teen and wanted to get things straightened out. I am happy to report my smile is back in full effect.

Both drs are wonderful and gentle in their approach. The staff is friendly and their office is extremely clean.

I recommend their office anytime I hear someone mention braces.
Jeanne K.
Jeanne K.
Oct 23, 2018
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Dr. Ko & Dr. Yoon are incredibly professional & do amazing work. But, what sets them apart is their easy-going fun attitude & the ease in which they make a difficult experience a positive one for their patients. Their office is absolutely beautiful, clean, & engaging with their patient involvement through contests, positive reinforcement in oral hygiene, and importance of good lifelong care of teeth.

As a dental professional, I highly recommend both Dr. Ko & Dr. Yoon! Our daughter just had her full mouth of braces removed today & I am so pleased with the outcome of the
Betty S.
Betty S.
Mar 02, 2018
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Before chooosing Tri Valley orthodontics, I had my 12 year old daughter attend the free consultations from 2 other orthodontists in the area. Hands down, Dr. Anne Yoon was the BEST. She was very knowledgeable, friendly and explained the treatment plan very thoroughly. Dr.Yoon uses the most modern technology and my daughter was thrilled that she didn't have to take the retainer impressions of her teeth using the clay like substance....instead, they scanned her teeth with a digital wand and the exact measurements of her teeth and mouth were recorded! No more gagging and breathing through your
Rosy H.
Rosy H.
Feb 28, 2018
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I am very impressed with the team here at Tri-Valley Orthodontics. I brought my daughter in for the complimentary braces consultation and from beginning to end we were treated with the utmost respect and given the best service anyone can ask for. The office is very clean and they have all of the most up to date equipment. The Orthodontist himself was very knowledgable and honest; he made us feel that he truly cared about my daughter's concerns with her teeth and he listened and gave us options for her.

We have not gone through with getting the braces done here because we are planning
Joseph L.
Joseph L.
Nov 26, 2016
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Amazing practice, amazing people, amazing attention to detail! From the moment you walk into the office, you're greeted by Erin, the best office manager we've come across in a dental practice, and their clean and bright waiting room. Dr. Ko and Dr. Yoon combine technology and premier customer service to provide an experience for our family that is bar none.

After spending some time researching offices in the area, we chose Tri-Valley Ortho. Our 8 year old daughter looks forward to her visits and follows the instructions of Dr. Yoon daily. We have three children, who need or will
Eunah Lee
Eunah Lee
Jul 23, 2016
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My 9 year old son, Matthew, had a wonderful experience this past year with Dr. Ko. He had crooked front teeth and had a slight overbite. Dr. Ko was very thorough in his explanations to the process and walked us through what will happen for the entire year. We appreciated his thoughtful gesture in describing and setting the expectations. We also loved the modern & clean office that is kid friendly with the movies, books, and snacks! Erin, the receptionist, has always been so friendly and welcoming in person as well as over the phone. We would highly recommend Dr. Ko and his staff to anyone who's