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Dr. Lewina Youn is a certified endodontist. She graduated from Simon Fraser University in British Columbia, Canada with B.S. in Biology prior to obtaining her Doctor of Dental Surgery Degree from University of Southern California, School of Dentistry.

At USC, Dr. Youn received numerous prestigious awards for excellence in dentistry. Upon graduation, she was inducted into the Omicron Kappa Upsilon Honor Society (selected from the top 10% of the graduating class).


Dr. Youn then worked as a general dentist in Pasadena, California for 2 years before returning to the University of Southern California to complete her advanced training in Endodontics. While attending the endodontic residency, Dr. Youn received extensive training in both non-surgical and surgical endodontic procedures. 

During dental school, Dr. Youn met love of her life and married to her husband who is now an oral surgeon and they have two beautiful daughters. Upon completion of her advanced training in endodontics, her family decided to move to Washington State and they enjoy rooting for the Seattle Seahawks and exploring indoor and outdoor activities that the Pacific Northwest has to offer. When not at the office, Dr. Youn enjoys camping with her family in the summer and snowboarding in the winter.


Aside from private practice, Dr. Youn also holds an affiliate faculty position at the University of Washington, School of Dentistry, Department of Endodontics where she enjoys teaching clinical endodontics.

Dr. Youn is also involved with many affiliations and is the president of the Washington State Association of Endodontists. 



Certificate in Endodontics 

School of Dentistry of University of Southern California, Los Angeles, California


Dental school:

Doctor of Dental Surgery 

School of Dentistry of University of Southern California, Los Angeles, California



Honors Degree in B.S. in Biology

Simon Fraser University, British Columbia, Canada


Honor Society

Omicron Kappa Upsilon

(selected from the top 10% of the graduating class in dentistry)


Affiliate professor, Department of Endodontics,

School of Dentistry of University of Washington


Professional affiliations

American Association of Endodontists

Washington State Association of Endodontists - President Emeritus

American Dental Association

Washington State Dental Association

Snohomish County Dental Association

Meet the Doctos
Meet Us
What sets us apart


Surgical Microscope


Microscope enables endodontists to resolve treatment challenges previously unrecognized or untreatable. 

Cone Beam Computerized Tomography (CBCT)


CBCT is an innovative medical imaging technique that provides endodontists with three-dimensional views of the patient.

In certain cases, CBCT greatly enhances the endodontist's ability to diagnose, evaluate, treat and care for patients.

Digital X-rays


Digital radiograph reduces the radiation exposure substantially and enhances the image quality.



The GentleWave Procedure is a state-of-the-art alternative to standard root canal treatment.
The ultracleaning technology of the GentleWave Procedure is an advanced combination of fluid
dynamics and a broad range of soundwaves that work together to reach into the microscopic
spaces and remove bacteria, debris and tissue. 



Fiberoptics are used to transilluminate teeth to detect cracks, canal orfices and fractured roots.

Ultrasonic Instruments

Ultrasonic instruments are used in many different ways and it greatly enhances the endodontist's ability to treat the root canals very safely and effectively. 

Contact Us


Our Address

15808 Mill Creek Blvd. Suite #202

Mill Creek, WA 98012  

Phone: 425-318-4787

Fax: 425-669-9974

Opening Hours

  Monday         09:00 AM – 5:00 PM

  Tuesday          09:00 AM – 5:00 PM

Wednesday      09:00 AM – 5:00 PM

  Thursday        09:00 AM – 5:00 PM

     Friday           09:00 AM – 3:00 PM

Emergency hours available

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