Bethany Orthodontics
Sue-Chin Liu, DMD, PhD:
Practice Profile Page


Bethany Orthodontics
Sue-Chin Liu, DMD, PhD (Orthodontist)

Portland, OR













A list of major dental treatments which I offer my patients:


Clear aligners


Comprehensive orthodontics

Space maintainers

Palatal expanders


Interceptive orthodontics


Offers Even28 at-home™? No

Offers Even28 at-dentist™? No

Offers Invisalign®? Yes


Monday: 8:00 am to 5:00 pm

Tuesday: 8:00 am to 5:00 pm

Wednesday: 8:00 am to 5:00 pm

Thursday: 8:00 am to 5:00 pm

Friday: 8:00 am to 5:00 pm

Saturday: Closed

Sunday: Closed





Check out what some of our happy patients are saying about us:

Terri Frank (Source: Google)


I had orthodontic work (old fashion braces) three decades ago. I have been blown away by how much has changed. Bethany Orthodontics uses the most innovative technology for scanning teeth & imagining. I got my invisalign about 30 days ago. I did my homework and reviewed several bids. By being a volume invisalign provider, Bethany had the most competitive price, hands down. The staff is super friendly, polite and very professional. Everyone seems very genuinely caring. WONDERFUL experience and I am just getting started!

H. C. from Portland, OR (Source: Yelp)


Bethany orthodontics is the best orthodontics office in town. Dr. Liu and her medical staff are very professional and knowledgeable. The front desk is super nice and helpful, and their price is very affordable. So, if you’re looking to get perfect  teeth and have a good experience, Bethany orthodontics is definitely the place to go. I highly recommend it, and give it 5 stars for sure.

Sarah K. from Portland, OR (Source: Yelp)


Dr. Liu has been my orthodontist for about 5 months now and I am so glad I visited her office to receive my treatment!! She is extremely friendly and always happy to answer my questions and concerns. Not to mention, the entire staff there is so sweet and gentle with my teeth. They call me in exactly at my appointment time so I’ve never had to wait. I highly recommend Dr. Liu for anybody interested in getting orthodontic treatment! You will not regret it!

Isaac Romero (Source: Google)


I’m so happy with the way my teeth looks now. The service is always good and timely. They honor your appointment and do not let you wait at the reception. I was wearing braces when I moved to Portland, so, i needed an orthodontist. Everyone i looked wanted me to “start over”. Dr Liu took my case and had the process finish.

Todd O. from Beaverton, OR (Source: Yelp)


Initial impression of the clinic was inviting, clean and new. Right off the bat, the staff was welcoming and caring. They knew who we were when we walked in the door. The waiting area is very clean and organized. There are two separate waiting areas. One for the kids with an X-Box and an area for the adults. We’ve always shied away from going to the orthodontist since we feel like dentists and orthodontists are in cahoots and cycle people through like a factory. This ortho doesn’t feel that way. We left feeling very comfortable and informed. They are very personable and feel like family. The payment plan made things palatable. We don’t feel overwhelmed at the cost of everything. All in all, this was a pretty pleasurable experience, as doctor visits can go.

Celia J. from Lakewood, CA (Source: Yelp)


The staff there are absolutely amazing. Their work is impeccable, you’ll leave with a beautiful smile. The receptionists are the best. They greet you and make sure you always feel welcomed. They give you all the information you need to know as well as, answer any of your questions or concerns.The over all vibe in the office is great, and would recommend Dr. Liu to anyone at anytime. This Ortho office is one of a kind with their fast service. They are considerate of your time and will help you as soon as possible.

Sabrina Rabinovitch (Source: Google)


Both of my children have been treated by Dr.. Liu in the past. After their treatment was all done I decided to have mine done. So I got Invisalines and am done with my treatment. My jaw and teeth do not bother me any more thank to Dr. Liu and her staff. They are aw some to work with. Thank you for a wonderful experience with my family over the years.

Heather A. from Lake Oswego, OR (Source: Yelp)


I highly recommend Lake Oswego Orthodontics if you’re looking to get braces. The staff and Dr. Sue Chin Liu are fantastic! They do a comprehensive evaluation and offer great payment options and discounts for full payments. Their work has been evident and my daughter’s teeth and smile look nothing short of amazing.

Sammy W. from Lake Oswego, OR (Source: Yelp)


I just finished up my Invisalign treatment at Lake Oswego Orthodontics and am extremely happy that I chose Doctor Liu as my orthodontist. I am a college student who had braces for a short while in middle school. My braces were taken off early due to a move and my teeth were still semi-crooked with an overbite. Doctor Liu walked me through the process of Invisalign, making sure I was comfortable each step of the way. Being a college student, Invisalign was a big financial decision and I felt as if I made a great decision with who I chose to straighten my teeth. Not only is Doctor Liu great to work with, but her staff is incredibly friendly and helpful. They were extremely accommodating with rescheduling and working with my school schedule. I highly recommend Lake Oswego Orthodontics.

R. J. from West Linn, OR (Source: Yelp)


My son and I have both received care with Dr. Liu for several years. The staff and Dr. Liu are always so easy to work with, friendly and have provided great care. I would recommend them to anyone needing orthodontic care.

Nancy P. from Lake Oswego, OR (Source: Yelp)


Both of my daughters have had their braces at Lake Oswego Orthodontics. I have been very impressed with Dr. Liu and her staff. They are all so friendly and professional! They make what could be an unpleasant experience very comfortable. And most importantly: my daughter’s teeth look great.

J. L. from Lake Oswego, OR (Source: Yelp)


Excellent service and location. All the staff is friendly, highly skilled, and professional. All the services are very quick. Appointments are planned in advance and they usually have an open schedule.  I would recommend this location to anyone that needs or wants braces.

Julie (Source: Google)


I brought by son to Bethany Orthodontics to have a consultation for braces. My son has autism and the office wasamzing with him and put him at ease. Dr. Liu was simply amazing. She was very soft spoken, extremely knowledgeable and explained everything in so much detail. Her staff was equally amazing and made us feel very comfortable. This was our 3rd orthodontic consultation and we will be using Bethany Orthodontics for my son’s braces! I would highly recommend Dr. Liu, her sweet, laid back and knowledge staff for your orthodontic needs.

Kylie Lewis (Source: Google)


I have been a patient at Bethany Orthodontics and I have had good a experience with the staff who are very nice, and I am very pleased with the end result. I recommend this to anyone who is nearby, and interested in braces or there other options. 🙂

R. S. (Source: Google)


We been to a few offices before choosing Bethany Orthodontics and after one consultation with Dr. Liu and her team, knew this was the right place for us. Not only did they give a detailed plan for the treatment but took the time to explain the results and how the different options would work best. It was a very thoughtful approach followed with professionalism and care. Two very important factors for us when choosing the best place to receive services for braces. I would highly recommend going here if looking for the level of care your loved one or yourself is seeking.

Jane F. from Portland, OR (Source: Yelp)


Dr. Liu’s office staff has always been accommodating and friendly for the 2 years we have been coming here. I would say it’s the best run medical office I have ever been to because they were never late once and they were always helpful if appointment changes need to be made. My daughter’s teeth turned out beautifully – I would highly recommend this office.

Jose S. from Beaverton, OR (Source: Yelp)


Dr. Lee has been my orthodontist for a few years now. She has continuously helped me better my bite and how straight my teeth are. Though my treatment has taken longer than expected, she and the staff at Bethany Orthodontics, have done a good job taking care of me. I am happy there are no additional costs even if my treatment plan is taking longer.

Najia K. from Beaverton, OR (Source: Yelp)


We have been with Bethany Orthodontics for over one year, and it’s been full of nothing but good things. They’re always on time and flexible with appointment times. If needed, they will help you reschedule an appointment even one day before for your convenience. There is also a small video game room, so siblings can stay occupied during appointments.

Audel Cervantes (Source: Google)


I came in for an initial consultation, not thinking that I was going to make the commitment to get my braces here. However, the staff was very friendly and dedicated to make sure that I knew the facility and the process of my treatment. Doctor Liu is very knowledgeable and gave me the ease I needed to start the treatment right away. I got my braces today and the process is beyond easy and quick. I am so thankful that I chose this facility to get my braces on!! I look forward in getting a better smile! Thank you everyone here!

Wendy S. from Bethany, Portland, OR (Source: Yelp)


Dr. Sue-Chin Liu is wonderful! Actually everyone in the office is great!  Upfront and honest, not just trying to put braces on everyone!! My daughter was very nervous at first but the friendly atmosphere and the techs melted her fears away.  Now she races me up the stairs, checks herself in and can’t wait to get her new colors in her mouth (she’s 9). A couple times her wires had come out and they were able to get her in right away.  They have an Xbox in the waiting area for the kids as well as a Kurig for the adults while you wait. We were able to set up a payment plan because face it-braces aren’t cheap and I didn’t have to break the bank!  If you are looking for an orthodontist go to Bethany Orthodontics!!

Ben B. from San Diego, CA (Source: Yelp)


Dr Liu and all technicians have been extremely helpful and great to work with. I have much straighter teeth and a more confident smile after doing the Invisalign treatment. Very nice office, and fair pricing. Definitely will be referring friends and family here in the near future.

Tina V. from Portland, OR (Source: Yelp)


Everyone here are very nice and knowledgeable. I never have to wait when I get there, they see me right away. When I needed to be seen about a discomfort I had at the beginning of my treatment with my Invisalign they were able to fit me in the same day and knew how to deal with the issue that I had. They also worked out a payment plan that worked for me. I’d definitely recommend Dr. Liu to my friends and family.

Nidhi G. from Portland, OR (Source: Yelp)


Dr. Liu is so awesome by giving her good recommendations, she’s not in a hurry to start any treatment but wants to give enough time to kids and family. Love her recommendations always and staff is so friendly and courteous. I Will definitely recommend this place to anyone !

Ronald Chedester (Source: Google)


Between our 2 daughters, we have been seeing Dr.Sue-Chin Liu for almost 4 years. Our daughters smiles are now even more beautiful. Thank you for the always pleasant visits.

Anji G. from Boston, MA (Source: Yelp)


Like so many, I had braces as a teen. And like so many, I stopped wearing my retainers after a few years. My teeth eventually relapsed and were once again crooked. For many years I considered getting braces again, but then the idea of wearing them for years was very off putting, almost as much as the haunting phrase “adult braces”. Eek. Cringe. So I carried on with my life and my crooked teeth. As the gradual shift continued, I noticed my teeth clinking together more often. It was frustrating and it hurt. I knew it was only a matter of time before I cracked or badly chipped a tooth, which would put me in a completely different category for urgent dental work. I felt like my luck was running out. Of course I had heard of Invisalign, seen ads and commercials, but I always assumed it was going to cost so much money. Then one day I convinced myself to go to the website. Their site is pretty easy to navigate. I was able to plug in my info and get a rough estimate of what my treatment would cost. From there they allow you to plug in your zip code and find an Invisalign provider near you and that’s how I found Lake Oswego Orthodontics. I had such a great time at this office. The ladies are so helpful, gentle, and kind. Every visit was efficient, and hardly took any time at all. Before I knew it, 7 months had passed and my treatment was finished. Everyone I know said, “that’s it?”. Yep, that’s all it took. In less than a year I had straight teeth again. It kind of makes me feel silly for having waited so long to get this done. But I couldn’t be happier with Sue Chin Liu and her staff. If you’re looking for a great orthodontist with a wonderful, professional, and caring staff, I 100% recommend Lake Oswego Orthodontics. They are definitely doing exemplary work over there and for that I am forever grateful.


We offer Invisalign and braces to children and adults. We have served the community since 2002. We offer flexible payment plan. We are located in the Bethany Village. Dr. Sue-Chin Liu has been certified as a Diplomate of the American Board of Orthodontics since 2005. She is among the Diplomates who hold non-time-limited certificates. The certification process includes written examination and detailed clinical patient case reports. The voluntary participation of this certification process demonstrates Dr. Liu's continued commitment to a high standard of clinical excellence. Dr. Liu has been a certified Invisalign provider since 2001, and she is a 2020 Platinum Provider. She has extensive experience to use Invisalign to treat adult and teenager patients. Dr. Liu received her dental degree in 1992 and PhD degree in 1993 from the University of Connecticut. Her PhD research was to identify gene defects of patients with Osteogenesis Imperfecta (Brittle Bone Disease). In 1995, she completed her specialty training in Orthodontics at OHSU and has practiced in Connecticut, Beaverton, NW Portland, and Lake Oswego since 1995. Dr. Liu is a member of the American Association of Orthodontics, the American Dental Association, the Oregon Dental Association, and the American Association of Orthodontics, the Oregon State Society of Orthodontics.