Root canal treatment, often called RCT, is used when the pulp inside a tooth becomes inflamed or infected and the tooth can still be restored. The aim is to remove the diseased tissue, disinfect the internal space and seal the tooth.
Why the pulp becomes infected
The pulp contains nerves, blood vessels and connective tissue. Deep decay, repeated dental work, a crack, fracture or trauma can allow bacteria or inflammation to affect it.
Possible warning signs
- Strong or persistent toothache
- Pain when biting or chewing
- Long-lasting sensitivity to hot or cold
- Swelling near a tooth or on the face
- A pimple-like swelling on the gum
- Darkening of a tooth after trauma
Some infected teeth cause little pain, so symptoms alone cannot confirm or rule out the need for treatment.
What happens during RCT?
The tooth is numbed, isolated and opened so the dentist can access the root canal system. Infected tissue is removed, canals are cleaned and shaped, and the space is filled and sealed. The tooth then needs a suitable final restoration.
Why a crown may be discussed
A back tooth that has lost substantial structure can be vulnerable to fracture. A crown may be recommended to protect it, but the decision depends on the remaining tooth, cracks, bite and position.
Can antibiotics replace a root canal?
Antibiotics may be appropriate when infection is spreading or there are systemic signs, but they do not remove infected tissue inside the tooth. Definitive dental treatment is usually needed to address the source.
When is it urgent?
Seek prompt dental care for facial swelling, fever, rapidly worsening pain, difficulty swallowing or breathing, or swelling near the eye. These signs can require urgent medical or dental management.
Disharth Dentistry can assess whether the tooth needs a filling, RCT, gum care or another treatment. Request a pain appointment
This guide is educational and not an emergency service. Severe swelling, breathing difficulty or rapidly worsening symptoms require urgent professional care.