When decay reaches deep into a tooth, close to or touching the nerve, many people assume root canal treatment is unavoidable. In some cases, however, the nerve is still healthy and can be protected with a procedure called pulp capping. Saving the living nerve keeps the tooth stronger and avoids more complex treatment.
The pulp, often called the nerve, contains blood vessels and cells that keep the tooth alive and responsive. A tooth with a healthy pulp can lay down protective dentine, sense temperature and pressure, and remains less brittle than a root-canal-treated tooth. If the pulp can be preserved safely, it is generally the most conservative option, so dentists consider pulp capping when the signs suggest the nerve is still healthy.
Indirect pulp capping is used when decay is deep but the nerve has not been exposed. The dentist removes most of the decay, leaving a thin layer of affected dentine closest to the nerve rather than risking exposure. A medicated material is placed over this area to encourage healing and the formation of new dentine, and the tooth is then sealed with a filling. The tooth is monitored over the following months.
Direct pulp capping is used when a small area of healthy nerve is exposed during cavity removal or after an injury. The exposed area is covered with a biocompatible material, such as calcium silicate-based cements, which encourage the pulp to form a protective bridge of new tissue. A well-sealed restoration is placed on top to prevent bacteria from entering.
Pulp capping works best when the tooth has no history of lingering or spontaneous pain, no signs of infection on X-rays and responds normally to tests. Young patients with good blood supply to the pulp often respond particularly well. If the nerve is already severely inflamed or infected, root canal treatment is usually more predictable.
Some sensitivity to hot and cold is common for a few days or weeks after pulp capping. This should gradually improve. If pain increases, lingers after hot or cold drinks, wakes you at night or swelling develops, contact your dentist, as the nerve may not have recovered and root canal treatment could be needed.
Your dentist will review the tooth at follow-up appointments, testing its response and taking X-rays to check for signs of healing or problems. Many pulp-capped teeth remain healthy for years. Good oral hygiene and regular check-ups help prevent new decay that could threaten the nerve again.
In children, a related procedure called a pulpotomy may be used for baby teeth, removing only the inflamed top part of the nerve. Your dentist will explain which approach suits your child.
In suitable teeth with a healthy nerve, yes. If the nerve later becomes inflamed or infected, root canal treatment may still be needed.
It is done under local anaesthetic. Some temporary sensitivity afterwards is common.
Success depends on the health of the nerve and the quality of the seal. Your dentist will monitor the tooth over time.
Ask whether your tooth's nerve can be saved. Learn more about root canal treatment in Al Ain.
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