Quick answer: A root canal appointment usually takes around 1 to 2 hours, and most patients need two or more appointments, depending on the tooth being treated and how complex the infection is. Some straightforward cases can be completed in 60 to 90 minutes.
If you have been advised that you may need root canal treatment, it is natural to want to know how long the procedure will take and what is involved. Below, we explain typical treatment times, what can affect them, and what to expect before and after your appointment at High Street Smiles.
Why root canal treatment time varies
Root canal treatment involves removing infected or damaged pulp from inside the tooth, cleaning and shaping the root canals, then sealing them to prevent reinfection. The time required varies because every tooth is different.
Back teeth often have multiple root canals, while front teeth usually have fewer. The extent of infection and the shape of the canals also affect how long treatment takes.
Typical root canal treatment times
While no two cases are exactly the same, many patients fall into the following ranges:
- Simple cases often take around 60 to 90 minutes
- Most appointments last 1 to 2 hours
- Treatment commonly requires two appointments, sometimes more for complex cases
Your dentist will always prioritise thorough cleaning and long-term success rather than rushing the procedure.
What affects how long a root canal takes?
The tooth being treated
Front teeth are usually quicker to treat because they often have a single canal. Molars can take longer as they may have two, three or more canals.
Severity of infection
If the pulp is heavily infected or there is inflammation around the root, extra time may be needed to clean and disinfect the tooth safely.
Root canal anatomy
Some canals are narrow or curved, which requires careful technique and precision to clean properly.
Restoration after treatment
Teeth that have had root canal treatment are often weaker and may need a crown to protect them. The crown process is usually completed at a separate appointment after the root canal itself.
What happens during a root canal appointment?
Root canal treatment is carried out in clear, structured stages:
- The tooth is numbed with local anaesthetic so you are comfortable
- A small opening is made to access the pulp
- Infected tissue is removed and the canals are cleaned and shaped
- The canals are filled and sealed
- A temporary filling is placed if further visits are required
At High Street Smiles, all root canal treatments include diagnostic X-rays and a temporary filling.
Will I need more than one appointment?
In many cases, yes. Multiple visits allow your dentist to ensure the infection is fully resolved before the tooth is permanently sealed. Needing more than one appointment does not mean treatment has failed – it is often the safest and most predictable approach.
Recovery after root canal treatment
Most patients experience mild tenderness for a few days after treatment. This usually settles with time and can be managed with over-the-counter pain relief if needed.
You may be advised to:
- Avoid chewing on the treated tooth until it is fully restored
- Maintain good oral hygiene
- Attend follow-up appointments as recommended
Root canal treatment at High Street Smiles, Golborne
At High Street Smiles, all root canal treatment is completed by a specialist clinician, ensuring a high level of precision and care. You will be guided through each step of the process, from diagnosis to temporary filling and long-term restoration.
Root canal treatment pricing
| Treatment | Price |
| Consultation | £100.00 |
| Single root | £795.00 |
| Two roots | £850.00 |
| Three roots | £895.00 |
| Re-root treatment (all teeth included) | £950.00 |
All root canal treatments include diagnostic X-rays and a temporary filling. For more information on pricing, visit our pricing page.
FAQs: How long does a root canal take?
How long does a root canal take in one appointment?
Most appointments last between 1 and 2 hours, although some straightforward cases can be completed in around 60 to 90 minutes.
Why do some root canals take two visits?
Some teeth need more than one appointment to ensure infection has fully cleared before the canals are permanently sealed.
Do molar root canals take longer than front teeth?
Yes. Molars usually have more canals and can be more complex to treat, which increases treatment time.
Will I need a crown after a root canal?
Often, yes. A crown helps protect the tooth from fracture and restores strength after treatment.
How long will my tooth feel sore after treatment?
Mild tenderness is normal for a few days. If pain persists or worsens, you should contact the practice.
Book Root Canal Treatment with High Street Smiles
If you are experiencing tooth pain, swelling or sensitivity, early root canal treatment can help relieve discomfort and save your natural tooth. Our experienced team in Golborne, Warrington will explain your options clearly and make sure you feel supported at every stage. Call us today on 01942 726 983 or book a free consultation online.

