Dental · Procedure

Root Canal Treatment: The Procedure, Step by Step

Success depends on finding every canal — molars often have four, and a missed one is the usual reason a root canal fails years later. This page covers the root canal treatment appointment itself — what is prepared beforehand, what happens in the chair, and what the first hours afterwards feel like. Plan for 1-2 appointments and 4-6 days including the crown.

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Quick answer

A single filling takes 20-40 minutes; a molar root canal typically needs 60-90 minutes and is sometimes split across two visits. Local anaesthetic, usually a single infiltration or a block for lower molars. Paediatric cases often use topical gel plus behavioural technique before any needle. Success depends on finding every canal — molars often have four, and a missed one is the usual reason a root canal fails years later.

Before your procedure

What's confirmed before you're in the chair.

  • A periapical X-ray of the tooth in question, and a pulp sensibility test where the diagnosis is uncertain
  • Confirmation that rubber dam isolation will be used, which is standard of care for both bonding and endodontics
  • A decision recorded on material choice: composite, ceramic inlay or a full-coverage crown afterwards
  • For children, an appointment early in the day and a clear explanation of what happens before the visit
  • A written, fixed price covering 1-2 appointments — confirmed before you fly, not on arrival
Step by step

What happens during root canal treatment.

  • Stop 01

    Records check on arrival

    Your scan or photographs are reviewed in person against the remote plan. Success depends on finding every canal — molars often have four, and a missed one is the usual reason a root canal fails years later.

  • Stop 02

    Isolation

    Rubber dam is placed. Saliva contamination is the most common cause of a bond failing or a canal becoming reinfected.

  • Stop 03

    Removal of diseased tissue

    Decay or infected pulp tissue is removed under magnification, with the extent verified rather than estimated.

  • Stop 04

    Sealing and restoration

    Canals are obturated or the cavity is built up in increments and cured, then the bite is checked with articulating paper before you leave.

  • Stop 05

    What is specific to this option

    Removes infected pulp from inside a tooth to save it from extraction.

  • Stop 06

    Debrief and follow-up

    You leave with written aftercare and the follow-up schedule fixed — for this option that means 4-6 days including the crown, with 1-2 appointments in total.

Anaesthesia & duration

Local anaesthetic, usually a single infiltration or a block for lower molars. Paediatric cases often use topical gel plus behavioural technique before any needle.

A single filling takes 20-40 minutes; a molar root canal typically needs 60-90 minutes and is sometimes split across two visits.

Who performs it

A general dentist for routine restorations, an endodontist for retreatment or complex canal anatomy, a paediatric specialist for children. Ask whether rubber dam and magnification are standard practice.

Right after the procedure

The lip stays numb for two to four hours — the main practical risk is biting your cheek before sensation returns. A treated tooth may feel tender to bite on for a couple of days.

Learn more

Cost and alternatives for Root Canal Treatment.

Compare vs alternatives → See full cost breakdown →
FAQ

Procedure questions, answered

Does the tooth need a crown afterwards?

Almost always on back teeth. A root-treated molar without a crown fractures far more often.

Is it painful?

The procedure itself is done under anaesthetic. The days afterwards involve manageable tenderness, not the pain that brought you in.

Was rubber dam used?

It should have been. Isolation is directly correlated with the long-term survival of both bonded restorations and root canal treatments.

Will this tooth need a crown afterwards?

Root-treated molars usually do, because the remaining tooth structure is brittle. Ask whether that cost is inside or outside the quote.

How much natural tooth is left?

The answer determines whether a filling is a durable solution or a temporary one before a cusp fractures.

How many visits does root canal treatment need in total?

1-2 appointments — and 4-6 days including the crown. Any quote that compresses that materially is worth a second read, because laboratory and healing time set the schedule, not the clinic diary.

How does this compare with the closest alternative?

Extraction plus an implant costs more and takes longer; keeping your own root is almost always worth attempting first.

Recognise the signs

Signs it might be time to look into this.

01

Pain wakes you at night

Spontaneous night pain is a classic pulpitis pattern.

02

A tooth is sensitive to heat that lingers

Lingering heat sensitivity points to irreversible pulp involvement.

03

A gum boil keeps appearing

A recurring sinus tract means chronic infection at the root tip.

Specific to this option

Root Canal Treatment: The Procedure, Step by Step: at a glance.

Success depends on finding every canal — molars often have four, and a missed one is the usual reason a root canal fails years later.

Sessions1-2 appointments
Time in Turkey4-6 days including the crown
RecoveryTenderness for 3-7 days
Expected lifespan10-20 years, higher when crowned promptly

Closest alternative

Extraction plus an implant costs more and takes longer; keeping your own root is almost always worth attempting first.

Related options

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See how recovery from root canal treatment works

Timeline, aftercare and what to watch for, day by day.

View recovery guide
In-depth guide

Root Canal Treatment: the procedure in detail

Success depends on finding every canal — molars often have four, and a missed one is the usual reason a root canal fails years later. A single filling takes 20-40 minutes; a molar root canal typically needs 60-90 minutes and is sometimes split across two visits.

What root canal treatment involves on the day

Success depends on finding every canal — molars often have four, and a missed one is the usual reason a root canal fails years later. Local anaesthetic, usually a single infiltration or a block for lower molars. Paediatric cases often use topical gel plus behavioural technique before any needle. A single filling takes 20-40 minutes; a molar root canal typically needs 60-90 minutes and is sometimes split across two visits.

Who does the work

A general dentist for routine restorations, an endodontist for retreatment or complex canal anatomy, a paediatric specialist for children. Ask whether rubber dam and magnification are standard practice. The lip stays numb for two to four hours — the main practical risk is biting your cheek before sensation returns. A treated tooth may feel tender to bite on for a couple of days.

What to confirm before you book

  • A periapical X-ray of the tooth in question, and a pulp sensibility test where the diagnosis is uncertain
  • Confirmation that rubber dam isolation will be used, which is standard of care for both bonding and endodontics
  • A decision recorded on material choice: composite, ceramic inlay or a full-coverage crown afterwards
  • For children, an appointment early in the day and a clear explanation of what happens before the visit

Schedule

1-2 appointments and 4-6 days including the crown are what the plan is built around. Extraction plus an implant costs more and takes longer; keeping your own root is almost always worth attempting first.

This page is general educational information, not medical advice, and does not replace guidance from your treating clinician. Always follow the specific instructions given by your treating clinic, and contact them directly with any concerns about your individual case.
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