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Understanding Root Canals: Signs You May Need One and What to Expect

Root canals

A root canal is a common dental procedure designed to save a tooth that is severely infected or damaged. Many people, however, are unsure about the signs that indicate a need for this treatment and what the procedure entails. In this blog, we'll examine the symptoms that may signal the need for a root canal and provide a step-by-step overview of the treatment process.

Signs You May Need a Root Canal

Recognizing the signs of an infected or damaged tooth is crucial for maintaining your oral health. Here are some common symptoms that may indicate you need a root canal:

1. Persistent Tooth Pain

If you experience ongoing tooth pain, especially when chewing or biting, it may signal an infection in the tooth pulp. Unlike temporary discomfort, continuous pain should not be ignored, as it often indicates more serious dental issues.

2. Sensitivity to Hot and Cold

Experiencing sharp or lingering pain when eating hot or cold foods and drinks can suggest that the nerves in the tooth are damaged or inflamed. Sensitivity that does not subside quickly after exposure to temperature is often an early indication of pulp infection.

3. Gum Swelling or Tenderness

Swelling or tenderness in the gums near the painful tooth may indicate an infection. Swollen gums signal that your body is trying to fight off disease, and you may even notice a small bump or abscess in the affected area.

4. Tooth Discoloration

If a tooth appears darker or more discolored than the surrounding teeth, it may be a sign that the pulp is dying due to decay or trauma. Discoloration often warrants a root canal to remove the affected tissue.

5. Pain When Touching the Tooth

If your tooth feels tender when touched, this could mean that the nerves inside are inflamed. Sensitivity to touch is commonly associated with pulp infection and indicates that the tissue inside the tooth may be compromised.

6. Cracked or Chipped Tooth

When a tooth is cracked or chipped due to injury, bacteria can enter the pulp and cause an infection. Even if immediate pain is not present, a root canal may still be necessary to prevent further damage or infection.

What to Expect During a Root Canal

The thought of a root canal can be intimidating, but knowing what to expect can alleviate your concerns. Here’s a step-by-step guide to the root canal procedure:

1. Initial Consultation and Examination

Your dentist will perform a thorough examination, often using X-rays, to assess the extent of the infection or damage. This evaluation helps determine if a root canal is the right treatment option for your tooth.

2. Anesthesia to Numb the Area

Local anesthesia is applied to numb the affected area to ensure your comfort. Thanks to advances in anesthesia and technology, modern root canal treatments are typically painless.

3. Removing the Infected Pulp

Once the area is numb, the dentist will create a small opening in the tooth's crown to access the pulp. Using specialized tools, they will remove the infected or damaged pulp tissue to stop the spread of infection.

4. Cleaning and Shaping the Canals

After the pulp is removed, the inside of the tooth is cleaned and disinfected to eliminate any remaining bacteria. The canals are then shaped to prepare them for filling, ensuring they are adequately sealed.

5. Filling and Sealing the Tooth

The dentist fills the canals with a biocompatible material, usually gutta-percha, to seal them and prevent further infection. A temporary or permanent filling is then placed on top to close the access hole.

6. Restoring the Tooth

A crown may be recommended to fully restore the tooth's function and appearance. A crown not only strengthens the tooth but also protects it from future damage. In many cases, a follow-up appointment is needed to place the final crown.

Aftercare and Recovery

After a root canal, mild discomfort is common and can typically be managed with over-the-counter pain relief. Here are some aftercare tips to aid your recovery:

  • Avoid Chewing on the Treated Tooth until your permanent crown is placed.
  • Maintain Good Oral Hygiene by brushing and flossing regularly to prevent future infections.
  • Stick to Soft Foods for a few days, as hard or chewy foods may cause discomfort.

When to Contact Your Dentist

If you experience severe pain, swelling, or unusual symptoms after your root canal, contact your dentist immediately. Although rare, complications can arise, and prompt treatment ensures a smooth recovery.


Root canals have a high success rate, and the procedure is designed to relieve pain and save your tooth. By recognizing symptoms early and seeking timely treatment, you can protect your dental health and prevent more complex issues from developing. Remember, a root canal is not as scary as it may seem—modern dental practices make it as comfortable and efficient as possible.


If you are experiencing any of these symptoms, don’t hesitate to book an appointment with Dr Nidhi Prakash at Apex Endodontics & Implantology Specialists for an evaluation.


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