ENDODONTIC TREATMENT RISKS:
I understand that root canal therapy is a procedure undertaken to retain a tooth that may
otherwise require an extraction. I understand that although this procedure has a high degree of
success, it is a biological procedure and success cannot be guaranteed.
I understand that many factors contribute to the success of root canal treatment and not all
factors can be determined in advance. Some of the factors are but are not limited to my
resistance to infection, the bacteria causing the infection, the size, shape and location of the
canals. My case may be more difficult if my tooth has blocked, curved or narrow canals.
I understand that root canal treatment may not relieve my symptoms and treatment can
sometimes fail for unexplained reasons. If treatment fails, other procedures including
retreatment, a surgical procedure or an extraction of the tooth.
I understand that during and after treatment, I may experience some pain or discomfort,
swelling, bleeding and loosening of dental restorations. I may also need antibiotics to treat any
associated infections. I may also continue to develop an infection despite all reasonable
attempts to treat the affected tooth.
I understand that root canal instruments sometimes separate (break) inside the canal which
may or may not affect the prognosis. If the separated fragment cannot be retrieved, it may be
sealed inside the root canal or require additional treatment in the future. There could also be
tooth root perforation which would require additional treatment or extraction.
I understand that other risks include perforation by the instrument, sinus perforation and/or
I understand that once root canal treatment is completed, I must have a permanent restoration
placed by my regular dentist within a few weeks. If I fail to have the tooth restored, I risk a failure
of the root canal treatment, decay, infection, tooth fracture and/or loss of the tooth. I also
understand that there is still a chance of tooth fracture even after the tooth is crowned.
I understand local anaesthetic will be given. Some discomfort following treatment may develop
from the injection area and from opening my mouth during treatment. On rare occasions,
paresthesia of the nerve may occur. There may be an alteration of sensation of the lip or cheek
as well as trauma to the nerve tissue and/ or blood vessels as well as a risk of an infection.
If a root canal must be done after a restoration or crown in its place, I understand that during
the root canal treatment, the existing restoration or crown, bridge etc. may have to be damaged
or removed and subsequently may require repair or replacement. In such an event it will not be
the responsibility of the treating dentist to repair or provide me with a replacement of that
I understand that upon successful completion of the root canal therapy, this tooth will have to be
restored as a separate procedure. Such a restoration may require a filling , and most often a
post/core and crown. A crown provides the necessary strength to withstand the biting forces
during normal long term function. This crown should be completed immediately to avoid
possible tooth fracture. Your dentist and you will make that decision.
Occasionally, and despite our best efforts, a tooth that has undergone non-surgical root canal
therapy may require retreatment or root canal surgery.
Even after root canal therapy approximately 5% of treated teeth may eventually require
extraction. There is no liability on the part of the treating Dentist for the loss of the tooth
Oftentimes the root canal cannot be completed in one visit; As a result, if I abandon the
completion of the root canal treatment procedure including the post procedure restoration
before it is completed, I accept responsibility for consequences which may arise from my
decision to discontinue treatment. Such consequences are described as “risks” above and may
also include decay of the tooth and may result in loss of the tooth.
ALTERNATIVES TO ENDODONTIC TREATMENT
Depending on my diagnosis, there may be alternatives to root canal treatment that involve
other types of dental care. I understand the most common alternatives to root canal treatment
.Extraction. I may choose to have this tooth removed. The extracted tooth usually requires replacement
by artificial tooth by means of a fixed bridge, dental implant, or removable partial denture.
I may choose to not have any treatment performed at all. If I choose no treatment, my
condition may worsen and I may risk serious personal injury. Including overall severe pain, localized
severe pain, localized infections, loss of this tooth and possible other teeth, severe swelling, and/or
severe infection that may spread to other areas and could be potentially fatal.
By signing below, I acknowledge that I have read and understand the recommended treatment, the risks
of such treatment, and the alternatives including doing nothing. I have had the chance to have all of my
questions answered. I understand that success is not guaranteed. I give my full consent to the treating
Dentist to perform this root canal procedure for me.
I acknowledge that I have provided an accurate medical history, will follow treatment recommendations
as well as post procedural instructions.
ANY QUESTIONS OR CONCERNS?
PLEASE FEEL FREE TO CONTACT THE OFFICE AT 905 770 0099 OR 416 223 2453
Once fully read and reviewed, please make sure that the above document is filled out
appropriately. By submitting this document, we are assuming that it has been read in its
entirety. All patient signatures will be verified for authenticity in the office.