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About - Willowdale Dental Group

At Willowdale Dental Group, our team of dentists and specialists are dedicated to helping our patients look and feel their absolute best. From simple preventive appointments to the reconstruction of full smiles, we always strive to ensure that each of our patients receives the highest standards of professional dental care, and that their experience with us is both positive and rewarding.

At Willowdale Dental Group we understand the importance of making our patients feel welcome and relaxed. When you walk into the practice, experience the atmosphere that is calming, soothing and relaxed. With your comfort in mind, our office features a treatment recovery area and the team aims to please to ensure you have a positive visit with us.

Our Doctors

Dr. Dale Nixon


Dr. Dale Nixon holds an BSc in Bachelor of Science and DDS from the University of Alberta. After graduating from dental school in 1977, Dr. Nixon worked as an associate in dental practices in British Columbia, Sydney (Australia) and the GTA before joining Willowdale Dental Group. Dr. DN also is an MBA graduate with an interest in understanding behaviour and personalities.

Dr. Dale Nixon enjoys all aspects of dentistry with a special interest in comprehensive dental care. Dr. DN, prefers to have built rapport with patients prior to initiating on any course of treatment. Dr. DN is available through email and or a in person meeting at our office. Dr. DN will take a number of before and after photos to ensure each patients case is well documented and the results are consistent with what was promised.

Dr. Maryam Mozayeni


Dr. Mozayeni received her Doctor of dental surgery first in 2008 with honors from National University in Iran, Tehran. After practicing as a general dentist for several years, she moved to US in 2012 and awarded her second dentistry degree (DDS) with honors from State University of New York at Buffalo. She then moved to Canada to join her husband and chose Canada as her home. She believes in providing high quality long-term comprehensive dental care for patients and their families with the latest technology in dentistry. She is an avid of dental research and has different publications in well-known dental journals. She is committed to evidence based clinical practice and deeply believes that in developing appropriate treatment plans, patient's treatment needs and preferences should be combined with the best available scientific evidence.

Dr. Mozayeni is experienced in different fields of dentistry including but not limited to; Mild sedation, Root Canals, Pediatrics, Esthetics and restorations, Lasers and surgeries, Crowns, Prosthetics and also extractions. She is actively involved in continuing dental education both in Canada and US to further expand her knowledge for the best interest of her patients that in her opinion is essential for the delivery of high-quality health care in the diagnosis and treatment.

Beside her dental career, Dr.Mozayeni enjoys different fields of arts including performing and fine arts. She is an expert in watercolor painting and has participated in different paint and handcraft exhibitions.

Dr. David Okamura


Dr. David, the middle of 5 children, was born to Japanese immigrant parents, in Alberta. He went to Port Credit High School and then obtained his BA in Math at Andrews University in Michigan USA. He graduated with his D.D.S. from the University of Toronto in 1969. In 1982 he married Ghislaine and the following year the first of their 4 sons was born. Kori, Riki, Kasey and Kyli are now all grown up and between the ages of 24-31.

One of his greatest enjoyments in practicing dentistry is to be able to engage in conversation with patients at a personal level.

Dave's interests include sports, casual golfing, philosophy, religion, arts, traveling and spending time with Ghislaine and the family.

Dr. Azza Elhaddad


Dr. Azza Elhaddad received her Bachelor of Dental Surgery in 1992 with honour (first of class) from Cairo University in Egypt, where she also finished her Master and PhD degrees in (Orthodontics) in 1998 and 2005 respectively. She received in 2006 a membership of Orthodontics form the Royal College of Surgeons Edinburgh (UK). She worked as a Lecturer at Orthodontic department, Faculty of dentistry Cairo University from 1998 till 2012. She also practiced as an orthodontist in private clinics for more than 15 years in Egypt and in Saudi Arabia.

In 2012, Dr Azza and her family moved to Toronto where she obtained her Doctor of Dental Surgery degree with honour from the University of Toronto in 2015. On graduation she received 3 awards.

Now, Dr Azza holds a licence as a general dentist from the Royal college of dental surgery in Ontario. She works as a part time instructor at the Faculty of Dentistry University of Toronto, in the comprehensive care program and in orthodontic seminars.

She speaks English, French and Arabic.

Dr. Payam Ouyarhossein


Dr. Ouyarhossein received his dental degree in 2005 from Iran with honors and as a top student entered to Periodontics specialty program in 2005. He received his Master of Science (MSc) degree specializing in Periodontology from Iran in 2008 with distinction and joined department of periodontology as an assistant professor. After moving to Canada, he received his second Doctor of Dental Surgery (DDS) degree in Canada in 2017 and holds a license as a general dentist from The Royal College of Dental Surgeons in Ontario. He brings with him over 10 years of experience in the dental field, both clinically and as an Assistant Professor.

Dr. Ouyarhossein is a general dentist who's scope of care covers dental implants, extractions, gum surgery and much more. His calm demeanor and gentle approach has been very comforting for patients. His main professional goal is to provide excellent patient care while continuing education and staying up-to-date with the latest and greatest in dental care.

Dr. Sasan


Dr. Sasan graduated with honors from a dental school in Iran in 1998 and he finished his NDEB equivalency process as well as OSCE in 2016. Dr. Sasan has been in the dental field for the past 20 years and owned his own private dental practice in Iran for 12 years before moving to Canada. Dr. Sasan moved to Canada in 2013 with his wife and daughter and they are happily living in Toronto, Ontario.

Dr. Sasan has always kept up to date with the latest technologies and education in the dental field and has extensive clinical experience in cosmetic/restorative dentistry, surgery procedures; ex. wisdom teeth extractions. With a focus on improving each patient’s appearance, self-confidence and general well-being, Dr. Sasan is a key member of our team.


Dr. Kilislian


Dr. Kilislian received her DMD from Tufts university school of dental medicine located in Boston MA in 1995. Two years later she completed a specialist degree in endodontics. In 1997 Dr. Kilislian joined a large group of Specialists in Endodontics located in Toronto’s financial district as well as Yorkville.

Dr. Kilislians belief is that all patients have a right to specialized endodontic treatment regardless of their financial situation. In this regard she never denies patients treatment or an immediate appointment. Rather than have patients travel from other cities to see her in Toronto, she decided to open up Kawartha Endodontics in Peterborough and North Toronto to make endodontic care accessible for her referring dentists and their patients.

Dr. Kilislian treats all patients including government assistance patients, patients with disabilities and patients requiring various forms of sedation. She is the clinical director of the practice and has multiple associates in her practices. Dr. Kilislian is available 24 hours a day to answer any patient concerns or dental emergency.

Dr. Kilislian lectures on advances in endodontic surgery to various members of the dental community and does accept referrals from other endodontists. Patients are free to self -refer in the event they feel they may benefit from endodontic treatment or an endodontic consultation.

Dr. Kilislians main interests are in research related to saving the otherwise unsalvageable tooth.

For more information on Dr. Kilislian, kindly contact our office to set up a convenient time to meet.

Our Team

Melanie - Director of Operations


Melanie is a motivated team player, who has a passion for making a difference in the lives of patients, specifically through the art and science of cosmetic dentistry. She is an accomplished certified Level 2 dental assistant, with years of clinical chair-side experience. Her interests include, smile makeovers and restoration of edentulous patients, through implant placement. As a diversified team player, Melanie strives to make each dental visit for a patient as possitive as it can be. If you have any questions about your oral health, she is always ready to help.

Leanne - Director of Patient and Dentist Relations

Leanne graduated with honors, as a Certified Dental Assistant in 1996 from Durham college.

Over the years she has expanded her duties and experience gaining CDA II certification, currently has completed Dental Office Management course from University of Toronto.

The part of her work role she enjoys the most is the interaction with our patients and providing them with the highest quality of care and helping them to have a positive and comfortable experience in our office.

Out of the office you can find Leanne with the joys of her life, her two sons and spending quality time with close family and friends. In her spare time she enjoys travel , soccer , exercise classes and fitness , along with anything that makes her smile.

Ivona - Director of First Impressions


Ivona has a degree in business marketing, as well as many years in the beauty industry. Over the years, she has established a reputation for her attention to detail and great customer service. She has a great ability to really listen to patients and find the best way to meet their needs, while making sure to accommodate them with their schedule and oral health goals. Ivona likes to get to know the patients so she can go the distance to make their experience at Willowdale Dental Group the best it can be. She believes that having a bright, healthy smile can really help someones confidence.

During her leisure time, Ivona loves to travel and has been to over 20 countries. She also enjoys anything to do with the arts, whether its going to a concert or watching a play at the theatre.

Elise – Director of First Impressions


Elise has been working in dental office administration and patient care for over 30 years. She is happy to be a part of the Willowdale Dental Group team. Elise will be the first person to meet you with a big smile and a friendly hello. I am always available to assist in any questions or concerns that you may have.

Mona - Registered Dental Hygienist


Mona has been working full time as a registered dental hygienist since 1990. She graduated from the dental hygiene program with honours and also earned the “Golden Scaler Award” for clinical proficiency. Mona is known for her passionate, gentle care and not to mention her great sense of humour. Her mission statement is, "if you don’t come in with a smile, you will leave with one". Mona believes in treating all her patients with the utmost respect. She is looking forward to meeting new faces and continuing to maintain her excellent rapport with all her patients. Mona wants you! So, What are you waiting for?

Tina - Registered Dental Hygienist


Knowing your smile is connected to your overall health, Tina will help you achieve optimal dental health with her many years of experience and caring nature.

Before following her passion as a dental hygienist, she earned a diploma in Business Administration with an accounting specialty, after which she studied Dental Assisting and Dental Hygiene at George Brown College where she graduated with honours . She is continually educating herself in the dental field to better help her patients.

Being in a multi disciplinary practice is allowing her to branch into different and exciting areas of dentistry ,but her favourite part of her day is still getting to know her patients on a more personal level.

During her leisure time, Tina enjoys jogs by the lake, time with her family, being involved with her church and watching her Blue Jays play ball.

Stephanie - Registered Dental Hygienist


Stephanie is a Registered Dental Hygienist who graduated with honours from The Toronto College of Dental Hygiene and Auxiliaries. Originally from Winnipeg, Manitoba Stephanie began her journey through the dental world when she took a two year dental technology course in 2009. This was when she realized her passion for dentistry, which brought her down the path of dental hygiene. She decided to move to Toronto after completing her first year at the University or Winnipeg.

Her number one influencer would be her father. At a young age Stephanie saw the extreme troubles her father faced with his oral hygiene and how a trip to the dental office would cause severe anxiety. Not only does Stephanie practice with the highest quality of care, she makes a great effort to ensure that her patients are as comfortable as possible before beginning treatment. Stephanie's big smile, positive attitude and warm personality will help brighten your day and allow you to relax during your time spent here at Willowdale dental.

Stephanie is a health and nutrition enthusiast. On her free time she is always being active, whether it be in the gym at the crack of dawn, being outdoors, or being involved with sports. Health and fitness is definitely a passion and priory in Stephanie’s life, whether it be your smile and general health or your body.

Kaori - Registered Dental Hygienist


Kaori was born in Japan and studied Dental Hygiene in Osaka. She started gaining valuable work experience at the Osaka University Dental Hospital. Kaori's next positions were in the public health sector, traveling around Japan to visit private companies to provide oral exams and educate employees about dental health, and working in several private clinics. In 1997 Kaori decided to come to Canada on a work visa for one year. She worked with Dr. Okamura for a few months during that year and when she made the decision to immigrate to Canada in 2000, she began working with Dr. Okamura and his team as a Certified Dental Assistant Level II.

In 2007 Kaori became a Registered Dental Hygienist. She now has multiple roles as part of Dr. Okamura's team, doing hygiene, assisting and reception.

In her spare time she enjoys camping, nature, making candles and soap. She looks forward each year, when she travels back to Japan to visit family and friends.

Jasmine - Registered Dental Hygienist


Jasmine has been working as a Registered Dental Hygienist for over 10 years. She worked as a head dental hygienist and also as a practice manager for several years in Seoul, South Korea. The vast amount of knowledge and skills Jasmine gained over the years enables her to provide the highest quality of care to clients. She has lots of experience with all groups of patients, especially periodontic, orthodontic, and cosmetic dental clients.

Jasmine's friendly and positive personality helps to relax clients, even young children, when they receive dental hygiene services. Her passion for traveling and exploring new things motivated her to work in South Korea and Australia before settling in Canada in 2006.

Angie - Certified Dental Assistant Level II


Angie is a consummate professional with unsurpassed superlative empathy towards nervous or special needs patients. After years of experience working with multi talented dentists, Angie brings WDG a unique as well as diversified skill set. Angie's infectious smile is multifaceted in that not only does it allay patient fears; moreover, her smile brings joy to all who engage her.

Alexandra - Certified Dental Assistant Level II / Treatment Coordinator


Alexandra was born and raised in Romania where she studied civil engineering. After the third year of university, while vacationing in Canada, Alexandra decided to make Canada home for her and her husband. Alexandra graduated with honors as a Certified Level II Dental Assistant in 2013 and in 2015 also received her Certification for Dental Treatment Coordinator, both credentials received from George Brown College.

Since graduation, Alexandra has been dedicating her time to helping patients have the best experience while in the dental chair. Patients love her warmth, professionalism and her passion for patient care. If you are anxious about dentistry, Alexandra will always find a way to help our patients feel more at ease.

Outside of the dental treatment rooms and office, Alexandra spends her time with her lovely twin girls, family and friends.

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