Dr. Kyubo Yoon in Markham

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Dr. Kyubo Yoon is a dual board-certified dentist in Canada and the United States, licensed to practice in both Ontario and New York. He brings a modern approach to dentistry rooted in artistry, excellence, and precision. He is committed to delivering high-quality, comprehensive care with a gentle, patient-centered approach, creating a comfortable and positive experience at every visit.


A graduate of the University of Toronto, Trinity College, Dr. Yoon earned his Doctor of Dental Surgery degree from the University of Detroit Mercy School of Dentistry in Michigan. He completed his residency at Columbia University Medical Center/NewYork-Presbyterian Hospital, a Level II trauma center in New York City. Training at New York City’s top adult and children’s hospital has given him extensive experience in treating a diverse patient population, including medically compromised individuals and special needs children requiring complex care.


Dr. Yoon practices all phases of dentistry, including fillings, crowns and bridges, root canal therapy, and orthodontics with Invisalign. He has a particular interest in facial aesthetics, temporomandibular disorders (TMD), facial pain, and airway health. He has completed advanced training and received certification from the Pacific Training Institute for Facial Aesthetics & Therapeutics in Therapeutic Botox, which he uses to manage TMD, bruxism (teeth grinding/clenching), tension headaches, and chronic migraine. He is also a Qualified Dentist with the American Academy of Dental Sleep Medicine (AADSM), reflecting his additional training and certification in dental sleep medicine and airway-focused care.


Dr. Yoon is an active member of the American Academy of Clear Aligners, the Royal College of Dental Surgeons of Ontario, and the New York State Dental Association.

What SetsMarkham Dental Apart

We approach your care differently, with a focus on health, function, and long-term prevention. At Markham Dental, we are:

We look beyond your teeth, incorporating assessments like blood pressure, airway and tongue analysis, and sleep screening to better understand how your oral health connects to your overall well-being.

With denturists, prosthodontists, orthodontists, and general dentists working together, your care is coordinated, comprehensive, and tailored to your needs.

Every exam is designed to be in-depth and intentional, with advanced assessments included at no additional cost, so nothing is overlooked.

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