Dr. Geoffrey Sas

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

  • Address 2002 Bathurst Street
  • E-mail contact@drgeoffreysas.com
  • Phone 416.781.5251
  • Fax 416.781.2590
  • Visit York Hill Endontics

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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.

Academic & Clinical Appointments

2015 - Present


Dawson Dental

2015 - 2017


Aurora Endodontics

2014 - Present


York Hill Endodontics

2014 - Present

University of Toronto

Adjunct Instructor

Adjunct Clinical Instructor in the Department of Endodontics


Nova Southeastern University

Endodontic Clinical Instructor

Practicing endodontic resident at Nova Southeastern University.

2011 - 2012

UCLA Health

AEGD Resident

Advanced Education In General Dentistry at Venice
-1 year program
-Complex & medically compromised cases
• Implant placement surgery – Biomet 3i, Zimmer
• Implant restorations – Fixed & Removable
• Periodontal surgeries – Osseous, crown lengthening, flap surgery
• Oral Surgery – extractions, 3rd molar, tori removal
• Full Mouth Rehabilitation
• Dental Photography
• Fixed and Removable Prosthodontics
• Practice Management
• Emergency Care

Academic Background

2012 - 2014

Certificate in Endodontics

Nova Southeastern University, Davie, FL

2011 - 2012

Certificate in Advanced Education General Dentistry

University of California, Los Angeles

2003 - 2007

BMSc (Hons.), Physiology and Pharmacology

University of Western Ontario, London

Dental and Specialty Licensing Examinations

July 2009 – National Board of Dental Examinations Part 1

March  2011 – National Board of Dental Examinations Part 2

June 2011 – The National Dental Examining Board of Canada

June 2014 – The Royal College of Dentists of Canada (Endodontics)

August 2014 – The Royal College of Dental Surgeons of Ontario

Academic Achievements

2003-2004 – Entrance Scholarship for Academic Excellence University of Western Ontario

2003-2007 – Deans Honor List, University of Western Ontario, London, ON

2003-2007 – Graduation with Distinction and Honors, Physiology and Pharmacology University of Western Ontario, London, ON

Athletic Achievements

1998-1999 – Level 1 Tennis Instructors Certificate and taught tennis clinic for two consecutive summers at Thornhill Country Club

1999-2003 – Represented Community Hebrew Academy of Toronto at the provincial level in tennis tournaments

2000 – Represented Toronto at the Maccabiah Games, Philadelphia, PA

2001 – Represented Toronto at the Maccabiah Games, Staten Island, NY

Organizational Activities (University of Toronto DDS)

Elected Representative for Class of 2011- Social Coordinator

Assistant Social Representative Alpha Omega Fraternity 2007-2011

Faculty of Dentistry Representative, University of Toronto Social Committee 2008-2009

Member of Faculty of Dentistry, University of Toronto Business Committee 2008-2009

Professional Affiliations

Fellow – The Royal College of Dentists of Canada 2014 – Present

Specialist in Endodontics – The Royal College of Dentists of Canada 2014 – Present

Alpha Omega Dental Society 2007-Present (Executive)

Ontario Dental Association 2007-Present

Canadian Dental Association 2007- Present

University of Toronto Faculty of Dentistry Alumni 2011-Present

American Association of Endodontists 2012- Present

Canadian Association of Endodontists 2014-Present

Royal College of Surgeons of Ontario 2014- Present

North Toronto Dental Society 2014- Present (Executive)

Ontario Society of Endodontists 2014- Present (Executive)

George Hare Study Club 2015- Present

Lectures and Presentations

Lam H, Nguyen Q, Sas G, Toor G, Wilkie H, “Costs and potential benefits for alternative modes of dental delivery (mobile dentistry)”, Community Dentistry at the Faculty of Dentistry, University of Toronto, 2009.

Sas G:  MTA-Where did it come from and where are we going. Nova Southeastern University. Davie, FL May 2014. (Alumni Conference)

Sas G: Dental Trauma. Toronto. York Hill Endodontics Evening Seminar September 2014

Sas G: The Endodontic/Restorative Interface. Alpha Omega Pi Chapter , December 2015

Sas G: Endodontic Emergencies. York Hill Study Club March 2015

Sas G: Restoration of the Endodontically treated tooth. York Hill Study Club May 2015.

Sas G: The cracked tooth syndrome. York Hill Study Club, August 2015

Sas G: MTA-Clinical Applications. York Hill Study Club, November 2015

Sas G: Endodontic Diagnosis. York Hill Study Club,  February 2016

Sas G: Residency – AGED Vs. GPR. University of Toronto D4 June 2016

Sas G: Cone Beam CT in Endodontics: York Hill Study Club, October 2016

Sas G, Schure R: Pulp and Periodontal Relationships, The Toronto Academy of Dentistry, Winter Clinic, November 2016

Sas G Schure R: Pulp and Periodontal Relationships, Alpha Omega Fraternity, Pi Chapter, October 2017.

Sas G Schure R: Pulp and Periodontal Relationships, West Toronto Dental Society, February 2018

Sas G: What do I do Now?. Nova SE University PG, March 2018

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.


  • I wouldn't trust anyone else to do my root canal ever again. He was so gentle, took time to explain everything, I didn't feel the needle or anything during the procedure. He called at night to make sure everything was ok which I thought was above and beyond amazing care. I am highly recommending him for root canals. Thank you!

    York Hill Endodontics Patient
  • Never have I met a doctor with better bed side manner. I was so afraid of dentists, and he spent so much time explaining the procedure, which calmed me down. Procedure was painless , called me that night to see how I was feeling. Couldn't have asked for a better experience. Highly recommend...

    York Hill Endodontics Patient
  • Never having had a root canal and being in my 60's, I was naturally anxious about having it done for the first time. However, Dr. Sas immediately put me at ease. I did not even feel the needle when he gave me the freezing. He communicated with me during the entire procedure and kept asking me how I was feeling which made me feel very comfortable. His staff from his assistants to the secretaries were all very friendly and informative. From the moment that I arrived until I left, I felt that I could not have been looked after any better. I highly recommend Dr. Sas if you ever need a root canal.

    York Hill Endodontics Patient
  • The best!!! would never go anywhere else. Thank you Dr. Sas!!

    York Hill Endodontics Patient
  • I would highly recommend York Hill Endodontics to everyone requiring a root canal. The entire experience was phenomenal, from booking appointments to the actual procedure. I was very pleased with the friendliness, professionalism and courtesy of all the staff. The receptionist was very helpful and pleasant to talk to when I called to make appointments or inquiries. Dr. Geoffrey L. Sas is an excellent doctor. He is very kind, understanding and professional. He took his time to fully explain all the options available and the procedure in detail before, during and after the root canal was done. I was constantly updated on the progress of the procedure during the treatment. I also received a follow up call from Dr. Geoffrey after the treatment which really shows how caring and understanding he is. In fact, I was also given Dr. Geoffrey’s cell phone in case of emergency. Overall, wonderful dental practice and I would give Dr. Geoffrey L. Sas 10 stars if I could. I have had a lot of dental work done through the years and surely to say this was by far the best experience. Thank you for treating me with the highest quality of perfection!

    York Hill Endodontics Patient

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