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At York Hill Endodontics, Dr. George Sas, Dr. Geoffrey Sas, and Dr. Ralph Dana perform endodontic therapy (also known as a Root Canal therapy) in Toronto. York Hill Endodontics was founded in 1965 by Dr. Jerry Smith. In 1981, George Sas joined him in practice and York Hill Endodontics is now the longest established endodontic specialty practice in Canada.

We offer root canal therapy and microsurgery in a modern, comfortable, urban setting. Have a root canal emergency? Contact us today! We invite you to explore our website and learn more about endodontics, as well as about ourselves – Dr. George Sas, Dr. Geoffrey Sas, and Dr.Ralph Dana; The endodontic specialists at York Hill Endodontics.

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Toronto Root Canal Therapy
York Hill Endodontics

We specialize in all aspects of Endodontic Treatment, Endodontic Surgery, and Root Canal Therapy.

Services Provided


Has your dentist recommended a root canal? Our Endodontic experts are here to make your root canal therapy as easy and pain-free as possible.

Have a previous root canal with an issue? We specialize in endodontic re-treatment and working with problematic past root canals.

The endodontic professionals at York Hill Endodontics are experts in endodontic surgery and dental microsurgery

Cracked teeth demonstrate many types of symptoms, including pain when chewing, temperature sensitivities, or even the release of biting pressure.

Traumatic dental injuries often occur in accidents or sports-related injuries. Chipped teeth account for the majority of all dental injuries.

Front Desk

Meet Your Doctors


Dr. George 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. Geoffrey Sas

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.

Dr. Ralph Dana

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.

Meet Your Doctors


Dr. George 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. Geoffrey Sas

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.

Dr. Ralph Dana

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.

York Hill Endodontics has been delivering the highest quality in endodontic care to Torontonians since 1965

Visit Toronto’s root canal specialists for your endodontic needs

Learning Centre


Has your dentist or endodontist told you that you need root canal treatment? If so, you’re not alone. Millions of teeth are treated and saved each year with root canal, or endodontic, treatment. Learn how root canal treatment can relieve your tooth pain and save your smile…

Has your dentist or endodontist told you that you need root canal treatment? If so, you’re not alone. Millions of teeth are treated and saved each year with root canal, or endodontic, treatment. Learn how root canal treatment can relieve your tooth pain and save your smile…

Occasionally, a nonsurgical root canal procedure alone cannot save your tooth and your endodontist will recommend surgery. Endodontic surgery can be used to locate small fractures or hidden canals that weren’t detected on x-rays or during previous treatment.

Traumatic dental injuries often occur in accidents or sports-related injuries. Chipped teeth account for the majority of all dental injuries. Dislodged or knocked-out teeth are examples of less frequent, but more severe injuries. Treatment depends on the type, location and severity of each injury. Any dental injury, even if apparently mild, requires examination by a dentist or an endodontist immediately.

There are common misconceptions that endodontic treatments such as root canals, cause pain and/or illness and should be avoided at all costs. The exact opposite is true. The pain, inconvenience and cost of avoiding endodontic treatment in favor of tooth extraction or a wait-and-see approach can be easily avoided. The longer you postpone treatment the more you risk the chance to save your tooth.

After your procedure, your endodontist will send you home with instructions for pain management and how to care for your tooth while recovering from treatment and until a follow-up visit. Following guidelines for care is especially important if a temporary filling or crown is in place.

While uncomfortable, any pain and sensitivity following a root canal should only last a few days. Since the pain experienced after a root canal is usually mild, you’ll likely only need over-the-counter pain medications for relief. These include acetaminophen (Tylenol) and ibuprofen (Advil, Motrin IB).

Technology


Our practice utilizes state-of-the-art, small volume cone-beam CT (computed tomography – or CBCT) technology that provides highly accurate, 3-D radiographic images for the diagnosis, planning and treatment of endodontic disease. This allows three-dimensional visualization of teeth, and bone.

At York Hill Endodontics in Toronto, your health and safety is our greatest concern. In that endeavor, we have been using digital radiography since 2010. This cutting edge technology allows an approximate 80% reduction in radiation to our patients and at the same increase the diagnostic capabilities. These digital radiographs are stored in your electronic chart and can be transmitted electronically to your general dentist at any time.

This advanced technology has completely changed the scope and practice of endodontic care. The surgical microscope has expanded the field of endodontics to create micro-surgical endodontics. The magnification and illumination this technology offers, allows us to see tiny malformations in anatomy never before possible. This technology has advanced the diagnostic and treatment possibilities in all aspects of endodontic care.

A nickel titanium rotary file is an engine-driven tapered and pointed endodontic instrument made of nickel titanium alloy with cutting edges used to mechanically shape and prepare the root canals during endodontic therapy or to remove the root canal obturating material while performing retreatment.

Our integrated delivery systems keep our equipment where we need it, when we need it, We can quickly and comfortably access our endodontic tools, removing the need to get up during a procedure, or take our focus away from delivering the best in endodontic care to our patients.

Locating the appropriate apical position always has been a challenge in clinical endodontics. The electronic apex locator (EAL) is used for working length determination as an important adjunct to radiography. The EAL helps to reduce the treatment time and the radiation dose, which may be higher with conventional radiographic measurements. According to recent publications, the accuracy of frequency-dependent EALs appears to be much higher compared with traditional-type EALs (simple resistance type or impedance type).

York Hill Endodontics is completely paperless. Our client portal allows you to access all relevant information in regards to your treatment easily online. All your records are recorded electronically, thereby making the communication with your dentist of your treatment very easy. Electronic charting not only make your records more legible but also enhances the environment by reducing the use of paper.

From the York Hill Blog


Request an Appointment

Fill out the form below to request an appointment. We will contact you to confirm. If you have a dental emergency, please call us at: 416-781-5251

    Request an Appointment

    Fill out the form below to request an appointment. We will contact you to confirm. If you have a dental emergency, please call us at:
    905-434-5757

      Our Mission

      York Hill Endodontics has been delivering quality endodontic services since 1965. Our mission remains to continue providing the same exceptional endodontic care to any patient entering our doors. Come by and experience the quality care that has served Torontonians for 50-plus years.

      Our Vision

      The thought of endodontic treatment shouldn't make patients worried. Our team will work with patients to deliver the most comfortable treatment possible in our modern environment. York Hill Endodontics employs the latest technologies that make treatment convenient and pain-free. Our vision is that every patient that seeks our help will leave with a healthy smile.

      Our Values

      • Top-quality endodontic treatment
      • Provide a comfortable experience in a modern setting.
      • Educate patients to make the right decisions to maintain a healthy set of teeth.
      • Provide a safe and clean environment for patients and staff.
      • Promote long-lasting relationships with patients and referring dentists.

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