A standard root canal treatment takes between 45 and 90 minutes. With modern rotary endodontics, many straightforward cases are completed in a single visit (60 minutes). If severe infection, swelling, or multi-rooted molar complexity is present, treatment is split into 2 visits of 45 minutes each, spaced 3 to 7 days apart.
45 – 60 minutes
2 visits (45 min each)
2 to 3 days
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1. Single-Sitting vs. Multi-Sitting RCT: When Is Each Indicated?
| Factor | Single-Sitting Root Canal | Two-to-Three Sitting Root Canal |
|---|---|---|
| Clinical Situation | Vital pulp exposure, irreversible pulpitis without abscess | Acute periapical abscess, pus drainage, persistent canal bleeding |
| Total Time in Chair | 60 to 75 minutes in one appointment | 40 mins in Visit 1 + 35 mins in Visit 2 |
| Inter-Appt Dressing | None needed; sealed immediately | Calcium hydroxide paste placed for 5-7 days |
| Patient Convenience | High (Only 1 anaesthetic injection & 1 visit) | Requires multiple visits to clinic |
2. Step-by-Step Breakdown of Appointment Duration
- Minutes 0–10: Digital X-ray analysis, medical history review, and administering local anaesthesia.
- Minutes 10–25: Isolation with rubber dam and opening the tooth to access the pulp chamber.
- Minutes 25–50: Cleaning, rotary file shaping, and extensive antibacterial irrigation of all root canals.
- Minutes 50–70: Drying canals, obturation with gutta-percha, and placing a temporary or composite core filling.
3. When Do You Get the Permanent Crown?
The permanent dental crown is typically fitted 1 to 2 weeks after the root canal. This brief waiting window ensures the tooth root has completely calmed down before taking final digital impressions for your crown.
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Frequently Asked Questions (FAQs)
Can a molar root canal really be done in one sitting?
Yes. Advances in high-torque endodontic motors and electronic apex locators allow experienced endodontists to complete molars in 60 minutes safely, provided no active pus is draining from the canals.
Can I go back to work immediately after a root canal?
Yes. Most patients drive back to work or college immediately following their appointment. Avoid scheduling major speeches while your lip is numb.