Southwest Dental Care

Meet our Doctors

Dr. Perkins and the team at Southwest Dental Care have one purpose in mind: to provide you with the best dental experience possible in a stress-free, comfortable environment.

Dr. Zhang, Dr. Perkins, Dr. Trisna


Dr. Perkins, Southwest Dental, London, ONDr. Perkins

Robert Perkins, DDS, received his undergraduate at the University of Guelph in 1981 followed by a Certificate of Honors in Human Physiology at the University of Western Ontario in 1982.

He completed his dental degree in 1987 at the University of Western Ontario and opened his South London dental office shortly after. Dr. Perkins performs services in general dentistry, as well as orthodontics, esthetics and dental implants.


Dr. Zhang, Southwest Dental Centre, London, OntarioDr. Yiyi Zhang

Dr. Yiyi has been part of the Southwest Dental care team since 2014.

She received her Doctor of Dental Surgery (DDS) degree at the University of Alberta, she also obtained a Bachelor of Medical Science (BMSc) from the same university. During her studies, Dr. Yiyi received the John & Lorena Woronuk International Award for "high academic standing in oral health care and demonstrated concern for patients’ quality of life".

She is highly proficient in all aspect of dentistry, demonstrated by her passion about restoring and improving the oral health of her patients. During her many years of practice in general dentistry, she has continued to perfect her skills and knowledge to provide her patients with the highest standards of care.

She has furthered her practice of dentistry in the following areas:

  • Esthetic Dentistry: Certified by the American Academy of Esthetic Dentistry.
  • Orthodontic Dentistry: Invisalign certification; Traditional braces; Early orthodontic Intervention with appliances.
  • Temporal mandibular joint (TMJ) rehabilitation.
  • Minimal sedation dentistry with oral sedation for patient over 12 years old and Nitrous Oxide (Laughing gas) for patients of all ages.

When she is not practicing dentistry, Dr. Yiyi enjoys being a mother to her son and loves spending some quality family time.


Dr. Pinchin Southwest Dental, London, ON

Dr. Pinchin

Dr. Pinchin is born and raised in London, he completed his first degree at UWO with a specialization in Medical Sciences and Biology. He then went on to complete his Doctor of Dental Surgery Degree at University of Sydney, Australia. Dr Pinchin was awarded the Cusack winner for top clinical student in his cohort.

Upon returning to Canada, Dr Pinchin continued his training by completing the Dental Implant Mini-Residency at the Toronto Institute of Dental Excellence. He continued his dental implant education with a Biohorizons Live Surgery training, and then went on to complete Implant Teeth in a Day, which helps people with most or all teeth missing, replace their dentures for implant supported teeth. Where it is one tooth that needs replacing, or all of them, Dr. Pinchin has you covered.

Dr. Pinchin is also an Invisalign Premier Provider, and enjoys helping patients get the smile they always wanted. He has completed the invisalign Fundamentals and Intermediate course, and can use Southwest Dentals new 3D iTero scanner to digitally scan you teeth and design your perfect smile.

When he is not working, Dr. Pinchin enjoys travelling the world, kitesurfing, scuba diving, photography, and spending time with his lovely wife (Dr. Trisna) and dog Pancakes.


Dr. McIntosh Southwest Dental, London, ONDr. McIntosh

Dr. John McIntosh graduated from the University of Western Ontario, Faculty of Dentistry in 2002. He then went on to specialize in Oral and Maxillofacial Surgery after graduating from The State University of New York at Buffalo.

Dr. McIntosh visits Southwest Dental Care to provide patients with Oral and Maxillofacial Surgery. Dr. McIntosh also provides general anaesthesia and sedation options for patients experiencing anxiety.


Dr. Trisna Southwest Dental, London, ONDr. Trisna

Dr. Natalia Trisna completed her Undergraduate degree in Optometry from the University of New South Wales before deciding to pursue her passion for Dentistry at the University of Sydney, Australia.

She was awarded the Colgate Award for Dental Research, the Australian Dental Research Foundation Award and her research on paediatric dentistry is soon to be published in the Australian Dental Journal.

She was also awarded the Dental Alumni Society Prize for Proficiency in Paediatric Dentistry and the Noel Martin Memorial Prize in Dentistry for consistent academic excellence in clinical aptitude, competence and professionalism.

Dr. Trisna is proficient in all aspects of dentistry but particularly enjoys root canal therapy, cosmetic dentistry, orthodontics and working with the little ones. She is certified to perform oral sedation and nitrous oxide (happy gas) for adults and young children who might feel apprehensive about dental treatment. She also completed a one-year Comprehensive Orthodontics program under Dr. Richard Litt through the Faculty for Orthodontic Research and Continuing Education. She is excited to offer traditional braces for the patients at Southwest Dental Care who are looking to transform their smile.


Dr. Jake Chevalier Southwest Dental, London, ON

Dr. Jake Chevalier

Once a patient of Southwest Dental Care from a young age, Dr. Chevalier has returned to the practice as a dentist ready to serve the community he grew up in.

Dr. Chevalier is originally from London and completed the Bachelor of Medical Sciences (Hons.) degree from the University of Western Ontario. Afterwards, Dr. Chevalier travelled to Australia where he graduated with the Doctor of Dental Medicine degree from the University of Sydney.

Dr. Chevalier has completed research is paediatric dentistry, travelled to Cambodia to provide dental care to children, and has acquired a passion for SCUBA diving and travel.

Dr. Chevalier believes it is important to treat all patients based on their individual desires and needs. He cares deeply about the well-being of his patients and wants to help them achieve a healthy smile.


Dr. Dr. Cheryl Liu Southwest Dental, London, ON

Dr. Cheryl Liu

Dr. Cheryl Liu obtained her Doctor of Dental Surgery (DDS) from the University of Toronto, Faculty of Dentistry.

Prior to this, she completed a Bachelor of Health Sciences (Honours) at McMaster University, followed by a Master of Management of Innovation at the University of Toronto. Following graduation, Dr. Liu joined her husband in the wonderful city of London, where they have chosen to settle.

Dr. Liu enjoys building trusting relationships with patients of all ages by delivering high quality dental care while maintaining excellent chairside manner. Her friendly personality and gentle touch help patients young and old feel at ease in the dental chair. Dr. Liu particularly enjoys working with children and adults suffering from dental anxiety and is certified to provide nitrous oxide (happy gas). She is committed to educating her patients, as she strongly believes that knowledge and prevention play important roles in minimizing dental disease. Dr. Liu is also a member of the Ontario Dental Association and the London District Dental Society.

When she is not working, Dr. Liu enjoys travelling, cooking, baking, staying active, and spending time with her husband and her furbaby Riley.


Meet the rest of our team!

Treat yourself to a brighter smile with Southwest Dental Care!