Common Reasons for Tooth Sensitivity Before and After Root Canal Treatment
Tooth sensitivity can be uncomfortable and sometimes confusing, particularly when it occurs around the time of a root canal procedure. Some symptoms develop because the tooth's nerve is damaged, while others may occur temporarily after treatment. The type, duration, and trigger of the sensitivity can provide useful clues about what is happening inside and around the tooth. Sensitivity Before Treatment A tooth that needs a root canal often has inflammation or infection in its pulp. The pulp sits beneath the enamel and dentin and contains the nerves responsible for sensing temperature and pain. When this tissue becomes irritated, patients may experience sensitivity to hot and cold that continues even after the food or drink has been removed. Other possible symptoms include: Throbbing toothache Pain while chewing Spontaneous pain Increased sensitivity at night Swelling around the tooth Deep cavities are among the most common causes, but cracks, trauma, and extensive...