Invisalign The Clear Alternative to Braces

Invisalign Adult

From simple to complex, Invisalign treatment is effective for a wide range of teeth-straightening cases.

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Invisalign Teen

Teens who wear clear aligners can have fewer, shorter office visits and fewer emergency visits.

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iTERO Element

The scanner captures a detailed model of teeth. It is more comfortable and faster.

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Appointment Request

Complimentary new patient exams are offered. Please contact us via email form or phone (503) 614-8898.

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2017 Premier Provider

Dr. Liu is a 2017 Premier Provider of Invisalign. She has been certified as an Invisalign provider since 2001 and has extensive experience to use Invisalign to treat various levels of cases. Both adults and teenagers benefit from this clear alternative to braces.

Dr. 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 voluntary participation of this certification process demonstrates Dr. Liu's continued commitment to a high standard of clinical excellence.

If you are interested in Invisalign, please call our office at (503) 614-8898 to schedule a complimentary new patient exam. We help you verify your orthodontic coverage and provide you with a flexible payment plan.


~ Ajay Portland

“The Invisalign process turned out great! My teeth were very misaligned before, and now they look great!”

~Christina Beaverton

“I LOVE my new smile! Everyone at Bethany Orthodontics is so helpful and friendly. Thank you!”

~Jem Portland

“Love Dr. Liu & her staff! Would definitely recommend them & Invisalign!”

~John Portland

“Great smile, definite change, easier to eat. Great service, friendly, timely.”

~Omar Portland

“The office is excellent, the staff are vibrant, competent, and extremely helpful, and the doctor is very knowledgeable and understand it. I love it.”

~Savannah Portland

“Quick, easy check-ups, not a hassle to come in. My teeth look great. The Invisalign aligners fixed the problem quickly and were easy on my mouth.”

~Tiffany McMinnville

“With Invisalign I even was able to get married without anyone knowing I was in treatment. The office was wonderful & helped make the whole experience easy. I’m so glad I had Invisalign. Thanks.”

~Tony Seaside

"Everything has been wonderful. Dr. Liu is the Best!"


Testimonials Invisalign

~ Alison Portland

“The office is well-run and efficient. Always on-time and gets me out the door quickly. Invisalign was a great option for me and was the least intrusive on my lifestyle. The results are great.”

~Ben Hillsboro

“I found that Bethany Ortho would be professional, helpful, honest, and an all-around great experience. Invisalign has been a wonderful experience and was definitely worth waiting for an exceptional smile! Thank you!”

~David Portland

“My treatment was quick, everyone involved was nice. I love my new smile.”

~Jesse Portland

“Dr. Liu and her staff are great. My new smile is awesome and without them it wouldn't have bee a possibility. Thanks!”


~Keyla Portland

“Everyone is always so upbeat and welcoming. I never thought that my smile would turn out so nice, even after the Invisalign. I was shocked with the improvement. Thank you all so much!!!”

~ Lisa Portland

“I love the office. Staff are always helpful and kind. I love my new smile. I get comments about them all the time.”

~Melissa Hillsboro

“The office staff was great and very welcoming. They were able to answer all my questions. I had Invisalign and loved it. People could rarely tell I was wearing it, My brother said it must be a great product cause he didn't know I had it.”

~ Monique Scappoose

“Great service & the staff is very good. Very happy with my new smile. Using the Invisalign was very convenient for me. I could use the trays at work & no one could tell I had them on.”