About Us


Diana Mastronardi  BSc, DDS, FRCD(C)

Dr. Diana L. Mastronardi received her DDS from the University of Detroit-Mercy, School of Dentistry in 1999. In 2009, she decided to advance her education and specialize in endodontics at Stony Brook University in Long Island, New York. Dr. Mastronardi has since successfully completed the RCDC specialty examination and is a member of the Canadian Dental Association, Ontario Dental Association, Halton-Peel Dental Association and the American Association of Endodontists. She resides in Mississauga, Ontario with her husband and 3 beautiful daughters. When not devoting time to her career, she enjoys painting, cooking, fitness and traveling.



“Excellent staff and service. They are always happy to help. Dr. Mastronardi is great at what she does. I highly recommend her and the clinic to everyone.” – Ryan O.


“Very professional and friendly.” – Lisa J.


“Services from Dr. Mastronardi and her assistants were one of the most professional, comforting, informative experience I have had. I highly recommend. Thank you for all your help!” – Shelley C.


“Very friendly, professional and attentive to patient’s needs. Would recommend to family and friends.” – Erica S.


“I felt that the service was top quality. the doctors and staff were kind to me and thorough in their explanations. – Beth C.


“Overall, a great experience. all of the staff were great to explain the procedure and give clear direction. All of the staff were very friendly and caring.” – Mel G.