We have carefully resumed routine orthodontic care to serve you. Please see our safety procedures here and call us for your next visit.

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Doctors and Staff

Meet the experienced and friendly orthodontists and staff who make Markham Orthodontic Specialty a quality provider of personalized orthodontic services in Markham.


Dr. ClaraDr. Clara Chow BSc, MSc, DDS, FRCD(C), Dip. ABO

Dr. Clara Chow enjoys the positive transformations of her patients’ bites to a healthier and more cleansable state that they want to smile about.  She sees her young patients grow with more self-esteem and adult patients gather more self-confidence from their new smiles.

Education BSc (high distinction) Univ. of Toronto, DDS (Honours) Univ. of Toronto, MSc Univ. Illinois at Chicago, Cert. Ortho Univ. Illinois at Chicago, FRCDC, Dip ABO

Dr. Chow grew up in Scarborough, Ontario.  She represented Canada at the International Association of Dental Research meeting in Japan in 2001.  After receiving her doctor of dental surgery degree from University of Toronto (2002), she completed residency at Hospital for Sick Children Toronto (HSC, 2003).  At HSC, she was part of the multidisciplinary craniofacial team and treated young patients with dental trauma and complex issues.  Her training took her to the United States where she worked at the University of Illinois at Chicago general practice residency program with emphasis on medically compromised patients.

She worked with many renowned orthodontists at University of Illinois at Chicago orthodontic specialty program (2007), such as Dr. Haas whom popularized expansion and dentofacial orthopedics to treat underbites.  A significant portion of Dr. Chow’s training was devoted to advanced techniques including use of temporary anchorage devices, face driven diagnosis, orthognathic surgical planning, adult pre-prosthetic setup, lingual braces and clear aligner therapy.  During this period, she also completed a master’s degree and presented her research and clinical cases at the American Association of Orthodontists’ annual meeting.

She is fluent in English, Cantonese and Mandarin.

When not at Markham Orthodontic Specialty practicing with her husband (a Canadian and American board certified Oral and Maxillofacial Surgeon), she enjoys being with their two lovely active boys, bowling, biking and playing/watching basketball; Go Raptors Go.

Dr. Alyssa Cho


Dr. Alyssa Cho completed her Doctor of Dental Surgery degree at University of Western Ontario with multiple awards and honors. Her own positive experience with braces led her to pursue specialty training at University of Pittsburgh, where she graduated with a Certificate of Advanced Study and Master of Dental Science in Orthodontics. During her residency, she was actively involved in craniofacial research and was awarded the Mary J. Hauk Memorial Scholarship to present her research at the American Cleft Palate-Craniofacial Association annual meeting. Dr. Cho strives to work together with her patients towards their picture-perfect smile. During her spare time, she enjoys spending time with family, baking, and travelling.


Orthodontic Hygienist

Chloe completed her dental hygiene training at Oxford North Dental Hygiene School in Richmond Hill and has been a dental hygienist since 2009. She had spent 2 weeks on a volunteer dental missionary trip to Brazil in 2008 with health mission outreach (HMO) organization where she provided dental hygiene treatment to impoverished members of villages at port Diana. On her days off, she enjoys traveling, swimming, spending time with friends and family, and playing with her cat.


Orthodontic Hygienist

Joining the MOS team in 2012, Bethany’s main goal as a dental hygienist is to ensure each patient experiences the best at each visit and are satisfied with their new smile. During her spare time, she enjoys jogging around the neighbourhood, caring for her two sons, and enjoying her daily coffee.



Orthodontic Hygienist

Graduated from George Brown college dental hygiene program in 2009, Akemi joined Markham Orthodontic Specialty in 2013. She believes that the best part of working here is seeing the beautiful smiles on our patient’s faces when they see their final results! In her spare time, she like to do yoga, play with Billy her cat, and cook with her husband.


Orthodontic Hygienist

Josie graduated with a biology degree from the University of Waterloo and then completed her dental hygiene diploma at Georgian College. She has been an orthodontic hygienist since 2008 and joined the MOS team in 2014, she loves helping Dr. Chow create beautiful smiles. During the week, Josie is an orthodontic hygienist at Sick Kids (HSC) in the cleft lip and palate department. In her spare time, she likes trying new restaurants with her husband and hanging out with her sisters.



Orthodontic Assistant

Joining Markham Orthodontic Specialty in 2009, Sophie is an assistant for Dr. Chow and her team. She is in charge of taking X-rays, impressions and scans, giving patients proper oral hygiene instructions after having their braces placed, and setting up for the doctors and hygienists. When she’s not in the office she takes care of her two little energetic kids, travel, and catches up with my favourite shows on TV.





Orthodontic Assistant

Amy is very knowledgeable, kind and patient, helping out with both the orthodontic and oral surgery side of the office. She looks forward to meeting all the new faces coming to the office.


Orthodontic Assistant

With a CDA and CDR, Helen joined the MOS team in 2014. She assists the orthodontists and hygienists, in charge of taking X-rays and scans, and tends to each patients needs. To make sure each patient has the best results with a healthy smile, she provides oral hygiene information and brushing tips. On her time off, she enjoys spending time with her family, listening to music and leisure walks around the neighbourhood.


Front Desk:



Being a part of the Markham Orthodontic Specialty Administrative Team since 2010, her tasks include scheduling appointments for patients, she can assist with any questions patients may have about the office. She enjoys interacting with patients and strives to make every patient’s visit a pleasant one. During her spare time, she enjoys being a part-time doggy mom, shopping and spending time with her family and friends.






Joining MOS in the summer of 2013, she is happy to be a part of such a friendly and professional dental team. She effectively works together with the rest of the team to provide the best service for each patient. During her leisure time, she enjoys singing classical music and is involved in the ministry at church.







Recently joining Markham Orthodontic Specialty as a receptionist, her duties include scheduling patients and assisting with each patient’s needs. When it gets busy, she also assists in the back to help setup and clean dental equipment. On her days off, she enjoys hanging out with friends and family, playing with her two cats and video games.





Recently joining Markham Orthodontic Specialty as a receptionist, her friendly and caring nature lets patients feel at ease when scheduling their next appointments with her.


Cathy has been with MOS since March 2009.  She helps Dr. Chow and Dr. Lin with surgical exposures and gives patients proper oral hygiene instructions after.  She is very experienced, friendly, caring and helpful.