Currently there are any number of patients dentists and even specialists that have misconceptions about root canal therapy.
Here are a few that have recently been brought to light by the AAE, or The American Asociation of Endodontists. I have included a link to the public website.
Myths about Root Canals
I am adding a response to the question asked below: Typically your regular Dentist will be the first person to note if a Root Canal is indicated. If you are in pain you may be the first person to know it. Please inform your dentist if you are having pain biting chewing or with hot or cold temperatures in your mouth.
I suspect you have been told that you need a Root Canal but your Dentist gave you a vague reason. Sometimes teeth require more exploration before knowing if Root Canal Therapy is absoultely indicated. It is very common for General Dentists to refer for consultation to Endodontists to discuss all treatment options before any treatment is completed. If you have any other questions please visit the patient section of our website, or call the office directly, to set up an appointment.
Thank you for your question, I hope this helps you with your decision to seek treatment.