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Root Canal Treatment

If a tooth is damaged, it’s prone to infection. Once infected, bacteria can spread to the root canal - the pulp chamber inside the tooth root. An infected root canal is often very painful and requires immediate treatment. Our dental clinic in Lewisham provides root canal treatment to remove the infection and restore your tooth. Your skilled and caring dentist in Lewisham will ensure your treatment is safe, comfortable, and efficient.

What are the signs of an infected root canal?

  • Mild, moderate, or severe pain
  • Discoloured teeth
  • Red and swollen gums

If left to spread, the infection can travel to the head and neck and require medical treatment. In some cases, the tooth may even need removing and be replaced with a permanent restoration at our dental practice in Lewisham.

How does the pain feel?

  • The pain can be mild, moderate, or severe
  • It may last for a few minutes or several hours
  • The pain may either throb or ache
  • It can be triggered by hot or cold temperatures
  • It may start once you tap or use the tooth
  • Moving around (standing, bending, sitting) may change the sensation

If your tooth is causing you any pain at all, please book an appointment with your emergency dentist in Lewisham as soon as possible.

What causes the pain?

Acutely sensitive nerve fibers, blood vessels, and lymph tissues are collectively contained in the pulp chamber of the root canal. Once infected, the area becomes inflamed, which, along with the infection, causes the individual pain.

What does root canal treatment involve?

Step 1: Your private dentist in Lewisham will use local anaesthetic to numb the tooth. A hole will be drilled through to the root canal.

Step 2: The infected dental pulp will be removed with special dental instruments, and the entire area will be thoroughly cleaned.

Step 3: The canal will be shaped accordingly and filled with a material (gutta-percha) that seals the tooth off from further infection.

Step 4: Your cosmetic dentist in Lewisham will then place a temporary filling over the opening of the tooth root.

Step 5: A permanent replacement crown will be placed over your filling at our dental surgery in Lewisham.


Following root canal treatment, you should maintain a good oral care routine, avoid sugary or crunchy foods, and not smoke. We will further advise you on how to ensure a safe, smooth recovery after your treatment.

Are you in need of root canal treatment in Lewisham? To book your consultation today, please call HV Lewisham Dental Practice on, or email us at

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