Root canal treatment may be done in one or two appointments. After root canal treatment, your tooth may be tender for the first week or two. Bad pain or swelling are not common; if this happens, call your dentist or endodontist. You can still get a cavity or gum disease after a root canal. Root canal treatment does not protect your tooth from other types of damage.
With proper care and regular dental visits, the tooth could last as long as your other teeth. There are some cases where everything possible has been done to save a tooth and still the tooth must be extracted (pulled).