Meet Your Doctors

Dr. George E. Sas

York Hill Endodontics was founded in 1965 by Dr. Jerry Smith. In 1981, George Sas joined him in the practice and it is now the longest established endodontic specialty practice in Canada.

After graduating from dental school, Dr. Sas attended the Forsyth Institute (affiliated with Harvard School of Dental Medicine) in Boston where he completed a general residency program. In 1981, he completed his post graduate training in endodontology under Dr. Samuel Seltzer at Temple University in Philadelphia.

Dr. Sas has lectured in both South and North America and is fluent in Spanish. For more than ten years he was a clinical instructor at the University of Toronto’s Faculty of Dentistry. He has practiced for over 30 years and maintains a private practice in endodontics with his son, Geoffrey, a board certified endodontist.

Dr. Sas is an active member in good standing of the American Association of Endodontists, the Ontario Society of Endodontists as well as both the Ontario Dental Association and Canadian Dental Associations.

Dr. Sas lives in Toronto with his wife, Lesley. They have four children. In his spare time Dr. Sas is an avid tennis player and is an active member of York Racquets Club in Toronto. In 2017 George and his son, Dr. Geoffrey Sas teamed up to win the York Racquets doubles tournament

Geoffrey L. Sas

BMSC (Hons) Dip. Endo FRCD(C) Dip. ABE

Dr. Geoffrey Sas started his education in Physiology at University of Western Ontario. He continued his studies in Dentistry where he obtained his DDS at the University of Toronto and his AEGD Certificate at the University of California, Los Angeles. After discovering his passion in Endodontics, he completed his certificate in Endodontics at Nova Southeastern University. He has several publications in the areas of the endo-restorative interface. He has lectured nationally and internationally and he’s currently on faculty at the University of Toronto. Additionally, he is on the executive of the Ontario Society of Endodontics, and the George Hare study club. In July of 2018 he proudly became a Diplomate of the American Board of Endodontics.

Published Articles

Sas G. “A Perspective on Dentistry in the Developing World”, Aorta: Alpha Omega Review of Toronto Alumni Chapter, Pi Chapter. 2009 October; 51 (2): 12-13.

Sas G. “Sharing Smiles Day”, Aorta: Alpha Omega Review of Toronto Alumni Chapter, Pi Chapter. 2010 July; 52 (1): 16-17.

B. Basrani, K. Roth, G. Sas, O. Peters, A. Kishen, “Torsional profiles of New and Used Revo-S Rotary Instruments: An In Vitro Study”, JOE. 2011 July; 37 (7): 989-992.

Sas G, Dagan M. “The Single Compromised Tooth – Where are we going?” Oral Health. 2015. January 49-51.

Sas G. “An Endodontic Restorative Update. “ Oral Health. 2015 May 38-41.

Sas G. “The Cracked Tooth: Diagnosis and Management”. Oral Health. 2016 May 64-68.

Sas G.  “Limited FOV CBVT in endodontics – 3 years later and never looking back“ – 2020. 28-32.

Dr. Ralph Dana

BSc, DDS, MSc (Endodontics), FRCD(C)

Dr. Dana was born and raised in Montreal, Quebec, and received his Bachelor of Science degree from McGill University. He then went on to complete his Doctor of Dental Surgery (DDS) degree at the University of Toronto in 2013 and was awarded the George Hare Endodontics Award and the prestigious Lynda Sellars Award, given to the graduating student who demonstrates the greatest overall proficiency with respect to the assessment, planning, treatment and management of patients in the Comprehensive Care Program. Immediately upon graduation, Dr. Dana worked in family practice in Toronto and Oshawa, ON, and also enrolled in the Implantology mini-residency program in the Oral Reconstruction Clinic at the University of Toronto, with focus on dental implant placement and restoration. While in private practice, Dr. Dana discovered his passion for endodontics, leading him to return to the University of Toronto to pursue his endodontic specialty training, receiving his Masters degree and Fellowship from the Royal College of Dentists of Canada.

Dr. Dana is an active member of the American Association of Endodontists, Canadian Academy of Endodontics, Ontario Dental Association, and Alpha Omega Toronto Chapter. Additionally, he is on the executive of the Ontario Society of Endodontists and the George Hare Study Club, and he serves as a clinical instructor for undergraduate students at the Faculty of Dentistry, University of Toronto, in the Department of Endodontics. He was previously awarded the “Best Endodontic Demonstrator Award” by the Dental Student Society. When out of the office, he enjoys spending time outdoors, travelling, reading, meditating, spinning, and sports of all types.