Root Canal Therapy by Dr. Yasmin Al-Zoubaidy Truth – Root canal treatment doesn't cause pain, it relieves it. Truth – There is no valid, scientific evidence linking root canal-treated teeth and disease elsewhere in the body. Truth – Saving your natural teeth, if possible, is the very best option. Truth – Root canal therapies can be completed in one or two appointments. Truth – Teeth that require root canal therapy are not always painful.