Updated September, 2026 | Clinically reviewed by Dr. Ella Choi
Tooth pulp is the soft tissue at the centre of a tooth that contains nerves, blood vessels and connective tissue. It helps nourish the tooth, supports dentin formation and allows the tooth to respond to temperature, pressure and other stimuli.
When tooth pulp becomes inflamed, infected or exposed, it can cause pain, sensitivity and, in some cases, an abscess. Understanding what tooth pulp does and what can go wrong can help you recognize when it may be time to see a dentist
What doesTooth Pulp do?
Tooth pulp has several important functions: ,
Sensation: Nerves in the pulp allow the tooth to respond to temperature, pressure and injury.
Dentin formation: Cells in the pulp help produce dentin, including reparative dentin that can form in response to irritation or injury.
Nourishment: Blood vessels within the pulp deliver oxygen and nutrients that help keep your teeth moisturized and nourished.
How to Protect Your Tooth Pulp
Prevent Cavities Before They Reach the Pulp
Cavities are one of the most common ways tooth pulp becomes damaged. Plaque bacteria produce acids that weaken tooth enamel and can eventually create a cavity. If decay progresses through the enamel and dentin, it can reach the tooth pulp and cause inflammation, infection and pain.
Regular brushing, flossing and dental checkups can help prevent cavities or catch them before they reach the pulp.
Diet: Limit Sugary Food and Drinks
Frequent sugary food and drinks give plaque bacteria more opportunities to produce acids that attack tooth enamel. Over time, repeated exposure can increase the risk of cavities that may eventually reach the tooth pulp. r Limiting sugary snacks between meals and choosing water more often can help reduce the risk.
Brush and Floss to Reduce Plaque
Brush twice a day with fluoride toothpaste and floss daily to help remove plaque from around the teeth and along the gumline. Regular dental cleanings can remove hardened plaque deposits that brushing and flossing cannot. help reduce plaque buildup.
Good oral hygiene lowers the risk of tooth decay progressing deep enough to irritate or infect the tooth pulp.
Keep Up With Regular Dental Check-ups
Regular dental checkups can help catch cavities before decay reaches the tooth pulp. Your dentist can also identify cracks, worn fillings or other problems that may expose the pulp to bacteria.
Treating these issues early can help prevent pulp inflammation, infection and the need for more extensive treatment.
Symptoms of Dental Pulp Disease
Symptoms of dental pulp disease can vary depending on whether the pulp is irritated, inflamed or infected. Common signs may include: may differ in severity and can include:
Sensitivity to hot, cold or sweet foods or drinks
Sharp, throbbing or persistent pain in the mouth
Pain when biting or chewing
Signs of infection
Types of Pulp Disease
Dental pulp diseases can develop in several ways, depending on the cause and severity of damage:
Reversible pulpitis: Mild inflammation of the pulp that may cause temporary sensitivity to hot, cold or sweet foods.
Irreversible pulpitis: More severe inflammation that can cause . sudden intense tooth pain. Irreversible pulpitis is treated with root canal therapy. If that doesn’t work, your dentist may have to remove the tooth.
Dental pulp calcification: Dental pulp stones are calcified masses that can form within the pulp chamber or root canals. The hardening, or calcification, of the pulp tissue, can result in hypersensitivity and extreme pain. A root canal is usually needed to clear away the hardened mass.
Dental pulp exposure: A deep cavity, crack or fracture may, expose the pulp to bacteria. Pain is the most frequent symptom, and a mild infection can progress into a severe abscess without proper dental care. Treatment Depends on the extent of the damage and may include a filling, root canal, or in some cases tooth extraction.
Root Canal Therapy for Damaged Tooth Pulp
When tooth pulp becomes severely inflamed or infected and cannot heal itself, root canal therapy may be needed to save the tooth.
During treatment, the damaged or infected pulp is removed from inside the tooth. The pulp chamber and root canals are then cleaned, disinfected and sealed. In many cases, the tooth is restored with a filling or crown to help protect it and restore strength and function. ,
Root canal therapy can relieve pain, remove infection and help preserve the natural tooth.
When to See a Dentist About Tooth Pulp Pain
If you have persistent tooth pain, sensitivity to hot or cold, swelling, or pain when biting, it’s important to have the tooth examined. These symptoms can sometimes indicate inflammation or infection involving the tooth pulp.
Early diagnosis may help prevent the problem from progressing and can increase the chances of saving the natural tooth.
Encore Dental provides comprehensive dental examinations and treatment for patients in Port Coquitlam and surrounding communities.
